Version picker deployed for v1.65 docs to Github Pages

author: Action Bot <action@synapse.bot.com> 2023-12-11 14:55:57 +0000
committer: Action Bot <action@synapse.bot.com> 2023-12-11 14:55:57 +0000
commit: dba7ae067629d885ff033ae2f2842744a11993d2 (patch)
tree: a95a79695494219ecafd959a48a54eb364f2c9fa /v1.65
parent: Version picker deployed for v1.66 docs to Github Pages (diff)
download: synapse-dba7ae067629d885ff033ae2f2842744a11993d2.tar.xz
103 files changed, 1929 insertions, 108 deletions
diff --git a/v1.65/.nojekyll b/v1.65/.nojekyll
deleted file mode 100644
index f17311098f..0000000000
--- a/v1.65/.nojekyll
+++ /dev/null
@@ -1 +0,0 @@
-This file makes sure that Github Pages doesn't process mdBook's output.
diff --git a/v1.65/.sample_config_header.yaml b/v1.65/.sample_config_header.yaml
deleted file mode 100644
index 2355337e6d..0000000000
--- a/v1.65/.sample_config_header.yaml
+++ /dev/null
@@ -1,12 +0,0 @@
-# This file is maintained as an up-to-date snapshot of the default
-# homeserver.yaml configuration generated by Synapse. You can find a
-# complete accounting of possible configuration options at
-# https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html
-#
-# It is *not* intended to be copied and used as the basis for a real
-# homeserver.yaml. Instead, if you are starting from scratch, please generate
-# a fresh config using Synapse by following the instructions in
-# https://matrix-org.github.io/synapse/latest/setup/installation.html.
-#
-################################################################################
-
diff --git a/v1.65/404.html b/v1.65/404.html
index 94089aec49..9c77b70655 100644
--- a/v1.65/404.html
+++ b/v1.65/404.html
@@ -29,6 +29,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -104,6 +105,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -173,5 +186,7 @@
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/CAPTCHA_SETUP.html b/v1.65/CAPTCHA_SETUP.html
index 9c6ff58dfd..323b66abda 100644
--- a/v1.65/CAPTCHA_SETUP.html
+++ b/v1.65/CAPTCHA_SETUP.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -220,5 +233,7 @@ listeners section of the <code>homeserver.yaml</code> configuration file.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/admin_api/account_validity.html b/v1.65/admin_api/account_validity.html
index dfcaaffaac..5ada660638 100644
--- a/v1.65/admin_api/account_validity.html
+++ b/v1.65/admin_api/account_validity.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -214,5 +227,7 @@ milliseconds since epoch:</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/admin_api/event_reports.html b/v1.65/admin_api/event_reports.html
index 3210a46a76..c684b71bdc 100644
--- a/v1.65/admin_api/event_reports.html
+++ b/v1.65/admin_api/event_reports.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -338,5 +351,7 @@ have a canonical alias set.</li>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/admin_api/media_admin_api.html b/v1.65/admin_api/media_admin_api.html
index e30db43f3d..6370e8451b 100644
--- a/v1.65/admin_api/media_admin_api.html
+++ b/v1.65/admin_api/media_admin_api.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -398,5 +411,7 @@ from the originating server.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/admin_api/purge_history_api.html b/v1.65/admin_api/purge_history_api.html
index 9a6b3b00ab..2b234b3d6b 100644
--- a/v1.65/admin_api/purge_history_api.html
+++ b/v1.65/admin_api/purge_history_api.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -234,5 +247,7 @@ a purge id:</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/admin_api/register_api.html b/v1.65/admin_api/register_api.html
index 15a90bef7c..4262c402fc 100644
--- a/v1.65/admin_api/register_api.html
+++ b/v1.65/admin_api/register_api.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -246,5 +259,7 @@ def generate_mac(nonce, user, password, admin=False, user_type=None):
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/admin_api/room_membership.html b/v1.65/admin_api/room_membership.html
index e3f833c9b8..b1e9ffd781 100644
--- a/v1.65/admin_api/room_membership.html
+++ b/v1.65/admin_api/room_membership.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -211,5 +224,7 @@ for a server admin: see <a href="../usage/administration/admin_api">Admin API</a
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/admin_api/rooms.html b/v1.65/admin_api/rooms.html
index 63a6cbb491..ebb839b2bc 100644
--- a/v1.65/admin_api/rooms.html
+++ b/v1.65/admin_api/rooms.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -1007,5 +1020,7 @@ that were deleted.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/admin_api/server_notices.html b/v1.65/admin_api/server_notices.html
index 672bad6ff1..85a406e811 100644
--- a/v1.65/admin_api/server_notices.html
+++ b/v1.65/admin_api/server_notices.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -216,5 +229,7 @@ can be used. See <a href="../server_notices.html">the server notices documentati
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/admin_api/statistics.html b/v1.65/admin_api/statistics.html
index f575e994f2..e476b28011 100644
--- a/v1.65/admin_api/statistics.html
+++ b/v1.65/admin_api/statistics.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -261,5 +274,7 @@ about the user and their local media. Objects contain the following fields:
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/admin_api/user_admin_api.html b/v1.65/admin_api/user_admin_api.html
index e45ffaed23..d2211250cf 100644
--- a/v1.65/admin_api/user_admin_api.html
+++ b/v1.65/admin_api/user_admin_api.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -1165,5 +1178,7 @@ for more information.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/admin_api/version_api.html b/v1.65/admin_api/version_api.html
index 35b23cad1e..20548c179a 100644
--- a/v1.65/admin_api/version_api.html
+++ b/v1.65/admin_api/version_api.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -199,5 +212,7 @@ contains Synapse version information).</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/application_services.html b/v1.65/application_services.html
index aa5e5db2ea..fbd14fb499 100644
--- a/v1.65/application_services.html
+++ b/v1.65/application_services.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -211,5 +224,7 @@ namespaces:
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/auth_chain_difference_algorithm.html b/v1.65/auth_chain_difference_algorithm.html
index 1e3734c16d..ca1e58202a 100644
--- a/v1.65/auth_chain_difference_algorithm.html
+++ b/v1.65/auth_chain_difference_algorithm.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -276,5 +289,7 @@ level).</li>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/code_style.html b/v1.65/code_style.html
index ceef2c8f33..337c548660 100644
--- a/v1.65/code_style.html
+++ b/v1.65/code_style.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -308,5 +321,7 @@ is left as an exercise for the reader!</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/consent_tracking.html b/v1.65/consent_tracking.html
index 69032c70a1..67323ebce2 100644
--- a/v1.65/consent_tracking.html
+++ b/v1.65/consent_tracking.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -346,5 +359,7 @@ URI that clients use to connect to the server. (It is used to construct
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/delegate.html b/v1.65/delegate.html
index a6c9188255..a0bab49cc0 100644
--- a/v1.65/delegate.html
+++ b/v1.65/delegate.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -257,5 +270,7 @@ reverse proxy.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/deprecation_policy.html b/v1.65/deprecation_policy.html
index deeb39a365..81197b629f 100644
--- a/v1.65/deprecation_policy.html
+++ b/v1.65/deprecation_policy.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -206,5 +219,7 @@ to constantly update their platform dependencies to the latest versions.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/cas.html b/v1.65/development/cas.html
index 3fa6697f71..a09dfe2041 100644
--- a/v1.65/development/cas.html
+++ b/v1.65/development/cas.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -247,5 +260,7 @@ and that the CAS server is on port 8000, both on localhost.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/contributing_guide.html b/v1.65/development/contributing_guide.html
index c98d112e67..0e7a7de437 100644
--- a/v1.65/development/contributing_guide.html
+++ b/v1.65/development/contributing_guide.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -592,5 +605,7 @@ do!</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/database_schema.html b/v1.65/development/database_schema.html
index f6b579226e..5a14da765a 100644
--- a/v1.65/development/database_schema.html
+++ b/v1.65/development/database_schema.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -347,5 +360,7 @@ in Python, evaluates to <code>True</code>.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/demo.html b/v1.65/development/demo.html
index 8a63aa8b2c..40f7414453 100644
--- a/v1.65/development/demo.html
+++ b/v1.65/development/demo.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -220,5 +233,7 @@ name.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/dependencies.html b/v1.65/development/dependencies.html
index 5bab1846ce..dd8de737d9 100644
--- a/v1.65/development/dependencies.html
+++ b/v1.65/development/dependencies.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -375,5 +388,7 @@ from PyPI. (This is what makes poetry seem slow when doing the first
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/experimental_features.html b/v1.65/development/experimental_features.html
index 81a98d560a..d6246418ef 100644
--- a/v1.65/development/experimental_features.html
+++ b/v1.65/development/experimental_features.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -218,5 +231,7 @@ configuration key (see the <code>synapse.config.experimental</code> file) and ei
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/git.html b/v1.65/development/git.html
index d51a4da527..da1ae289d1 100644
--- a/v1.65/development/git.html
+++ b/v1.65/development/git.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -306,5 +319,7 @@ the history of Synapse), we've had two releases in flight at once. Obviously,
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/internal_documentation/index.html b/v1.65/development/internal_documentation/index.html
index 086f5a7504..33c09241f0 100644
--- a/v1.65/development/internal_documentation/index.html
+++ b/v1.65/development/internal_documentation/index.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -194,5 +207,7 @@ under the Usage section of the documentation.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/releases.html b/v1.65/development/releases.html
index 12565c42ba..10eccbef5a 100644
--- a/v1.65/development/releases.html
+++ b/v1.65/development/releases.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -215,5 +228,7 @@ found in the <a href="https://matrix.org/blog/category/security">security catego
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/reviews.html b/v1.65/development/reviews.html
index 77b510813b..98541c1c2c 100644
--- a/v1.65/development/reviews.html
+++ b/v1.65/development/reviews.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -218,5 +231,7 @@ with the rationale on why you're putting it back in the queue.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/room-dag-concepts.html b/v1.65/development/room-dag-concepts.html
index fd5a054056..5b4b057610 100644
--- a/v1.65/development/room-dag-concepts.html
+++ b/v1.65/development/room-dag-concepts.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -274,5 +287,7 @@ notes from @Azrenbeth, https://pastebin.com/seUGVGeT</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/saml.html b/v1.65/development/saml.html
index cc70db5d39..8710ec2c70 100644
--- a/v1.65/development/saml.html
+++ b/v1.65/development/saml.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -223,5 +236,7 @@ samling page and clear the site data. In Chrome, this will be a button on the Ap
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/development/synapse_architecture/cancellation.html b/v1.65/development/synapse_architecture/cancellation.html
index f5c41c5fe4..be05efc464 100644
--- a/v1.65/development/synapse_architecture/cancellation.html
+++ b/v1.65/development/synapse_architecture/cancellation.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -532,5 +545,7 @@ with LoggingContext(&quot;request-1&quot;):
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/docs/website_files/version-picker.css b/v1.65/docs/website_files/version-picker.css
new file mode 100644
index 0000000000..28e5d5219a
--- /dev/null
+++ b/v1.65/docs/website_files/version-picker.css
@@ -0,0 +1,78 @@
+.version-picker {
+    display: flex;
+    align-items: center;
+}
+
+.version-picker .dropdown {
+    width: 130px;
+    max-height: 29px;
+    margin-left: 10px;
+    display: inline-block;
+    border-radius: 4px;
+    border: 1px solid var(--theme-popup-border);
+    position: relative;
+    font-size: 13px;
+    color: var(--fg);
+    height: 100%;
+    text-align: left;
+}
+.version-picker .dropdown .select {
+    cursor: pointer;
+    display: block;
+    padding: 5px 2px 5px 15px;
+}
+.version-picker .dropdown .select > i {
+    font-size: 10px;
+    color: var(--fg);
+    cursor: pointer;
+    float: right;
+    line-height: 20px !important;
+}
+.version-picker .dropdown:hover {
+    border: 1px solid var(--theme-popup-border);
+}
+.version-picker .dropdown:active {
+    background-color: var(--theme-popup-bg);
+}
+.version-picker .dropdown.active:hover,
+.version-picker .dropdown.active {
+    border: 1px solid var(--theme-popup-border);
+    border-radius: 2px 2px 0 0;
+    background-color: var(--theme-popup-bg);
+}
+.version-picker .dropdown.active .select > i {
+    transform: rotate(-180deg);
+}
+.version-picker .dropdown .dropdown-menu {
+    position: absolute;
+    background-color: var(--theme-popup-bg);
+    width: 100%;
+    left: -1px;
+    right: 1px;
+    margin-top: 1px;
+    border: 1px solid var(--theme-popup-border);
+    border-radius: 0 0 4px 4px;
+    overflow: hidden;
+    display: none;
+    max-height: 300px;
+    overflow-y: auto;
+    z-index: 9;
+}
+.version-picker .dropdown .dropdown-menu li {
+    font-size: 12px;
+    padding: 6px 20px;
+    cursor: pointer;
+} 
+.version-picker .dropdown .dropdown-menu {
+    padding: 0;
+    list-style: none;
+}
+.version-picker .dropdown .dropdown-menu li:hover {
+    background-color: var(--theme-hover);
+}
+.version-picker .dropdown .dropdown-menu li.active::before {
+    display: inline-block;
+    content: "✓";
+    margin-inline-start: -14px;
+    width: 14px;
+}
\ No newline at end of file
diff --git a/v1.65/docs/website_files/version-picker.js b/v1.65/docs/website_files/version-picker.js
new file mode 100644
index 0000000000..bb35a7d896
--- /dev/null
+++ b/v1.65/docs/website_files/version-picker.js
@@ -0,0 +1,127 @@
+
+const dropdown = document.querySelector('.version-picker .dropdown');
+const dropdownMenu = dropdown.querySelector('.dropdown-menu');
+
+fetchVersions(dropdown, dropdownMenu).then(() => {
+    initializeVersionDropdown(dropdown, dropdownMenu);
+});
+
+/**
+ * Initialize the dropdown functionality for version selection.
+ * 
+ * @param {Element} dropdown - The dropdown element.
+ * @param {Element} dropdownMenu - The dropdown menu element.
+ */
+function initializeVersionDropdown(dropdown, dropdownMenu) {
+    // Toggle the dropdown menu on click
+    dropdown.addEventListener('click', function () {
+        this.setAttribute('tabindex', 1);
+        this.classList.toggle('active');
+        dropdownMenu.style.display = (dropdownMenu.style.display === 'block') ? 'none' : 'block';
+    });
+  
+    // Remove the 'active' class and hide the dropdown menu on focusout
+    dropdown.addEventListener('focusout', function () {
+        this.classList.remove('active');
+        dropdownMenu.style.display = 'none';
+    });
+  
+    // Handle item selection within the dropdown menu
+    const dropdownMenuItems = dropdownMenu.querySelectorAll('li');    
+    dropdownMenuItems.forEach(function (item) {
+        item.addEventListener('click', function () {
+            dropdownMenuItems.forEach(function (item) {
+                item.classList.remove('active');
+            });
+            this.classList.add('active');
+            dropdown.querySelector('span').textContent = this.textContent;
+            dropdown.querySelector('input').value = this.getAttribute('id');
+
+            window.location.href = changeVersion(window.location.href, this.textContent);
+        });
+    });
+};
+
+/**
+ * This function fetches the available versions from a GitHub repository
+ * and inserts them into the version picker.
+ * 
+ * @param {Element} dropdown - The dropdown element.
+ * @param {Element} dropdownMenu - The dropdown menu element.
+ * @returns {Promise<Array<string>>} A promise that resolves with an array of available versions.
+ */
+function fetchVersions(dropdown, dropdownMenu) {
+    return new Promise((resolve, reject) => {
+        window.addEventListener("load", () => {
+
+            fetch("https://api.github.com/repos/matrix-org/synapse/git/trees/gh-pages", {
+                cache: "force-cache",
+            }).then(res => 
+                res.json()
+            ).then(resObject => {
+                const excluded = ['dev-docs', 'v1.91.0', 'v1.80.0', 'v1.69.0'];
+                const tree = resObject.tree.filter(item => item.type === "tree" && !excluded.includes(item.path));
+                const versions = tree.map(item => item.path).sort(sortVersions);
+
+                // Create a list of <li> items for versions
+                versions.forEach((version) => {
+                    const li = document.createElement("li");
+                    li.textContent = version;
+                    li.id = version;
+    
+                    if (window.SYNAPSE_VERSION === version) {
+                        li.classList.add('active');
+                        dropdown.querySelector('span').textContent = version;
+                        dropdown.querySelector('input').value = version;
+                    }
+    
+                    dropdownMenu.appendChild(li);
+                });
+
+                resolve(versions);
+
+            }).catch(ex => {
+                console.error("Failed to fetch version data", ex);
+                reject(ex);
+            })
+        });
+    });
+}
+
+/**
+ * Custom sorting function to sort an array of version strings.
+ *
+ * @param {string} a - The first version string to compare.
+ * @param {string} b - The second version string to compare.
+ * @returns {number} - A negative number if a should come before b, a positive number if b should come before a, or 0 if they are equal.
+ */
+function sortVersions(a, b) {
+    // Put 'develop' and 'latest' at the top
+    if (a === 'develop' || a === 'latest') return -1;
+    if (b === 'develop' || b === 'latest') return 1;
+
+    const versionA = (a.match(/v\d+(\.\d+)+/) || [])[0];
+    const versionB = (b.match(/v\d+(\.\d+)+/) || [])[0];
+
+    return versionB.localeCompare(versionA);
+}
+
+/**
+ * Change the version in a URL path.
+ *
+ * @param {string} url - The original URL to be modified.
+ * @param {string} newVersion - The new version to replace the existing version in the URL.
+ * @returns {string} The updated URL with the new version.
+ */
+function changeVersion(url, newVersion) {
+    const parsedURL = new URL(url);
+    const pathSegments = parsedURL.pathname.split('/');
+  
+    // Modify the version
+    pathSegments[2] = newVersion;
+
+    // Reconstruct the URL
+    parsedURL.pathname = pathSegments.join('/');
+  
+    return parsedURL.href;
+}
\ No newline at end of file
diff --git a/v1.65/docs/website_files/version.js b/v1.65/docs/website_files/version.js
new file mode 100644
index 0000000000..18449833b3
--- /dev/null
+++ b/v1.65/docs/website_files/version.js
@@ -0,0 +1 @@
+window.SYNAPSE_VERSION = 'v1.65';
diff --git a/v1.65/federate.html b/v1.65/federate.html
index 6f87fc5375..23f43701eb 100644
--- a/v1.65/federate.html
+++ b/v1.65/federate.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -238,5 +251,7 @@ useful just for development purposes. See
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/index.html b/v1.65/index.html
index 290aac8a14..6bd68e1728 100644
--- a/v1.65/index.html
+++ b/v1.65/index.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -264,5 +277,7 @@ Policy</a>. Thank you!</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/jwt.html b/v1.65/jwt.html
index ce0cf6e4aa..e00e70515c 100644
--- a/v1.65/jwt.html
+++ b/v1.65/jwt.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -281,5 +294,7 @@ print(result.decode(&quot;ascii&quot;))
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/log_contexts.html b/v1.65/log_contexts.html
index 154a042c0e..904c7d3588 100644
--- a/v1.65/log_contexts.html
+++ b/v1.65/log_contexts.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -481,5 +494,7 @@ lead to leaked logcontexts which are incredibly hard to track down.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/manhole.html b/v1.65/manhole.html
index c4f7f5d1f7..6cff929dd7 100644
--- a/v1.65/manhole.html
+++ b/v1.65/manhole.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -254,5 +267,7 @@ parts of the process.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/media_repository.html b/v1.65/media_repository.html
index bafa37dfb0..8a329b0d03 100644
--- a/v1.65/media_repository.html
+++ b/v1.65/media_repository.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -245,5 +258,7 @@ url_cache_thumbnails/yyyy-mm-dd/aaaaaaaaaaaaaaaa/128-96-image-jpeg-scale
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/message_retention_policies.html b/v1.65/message_retention_policies.html
index c4e8fc8b88..93066aee21 100644
--- a/v1.65/message_retention_policies.html
+++ b/v1.65/message_retention_policies.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -341,5 +354,7 @@ operating system, the server admin needs to run <code>VACUUM FULL;</code> (or
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/metrics-howto.html b/v1.65/metrics-howto.html
index fdd0de62bc..e284dac900 100644
--- a/v1.65/metrics-howto.html
+++ b/v1.65/metrics-howto.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -425,5 +438,7 @@ renamed.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/modules/account_data_callbacks.html b/v1.65/modules/account_data_callbacks.html
index 481a4662c4..b566537509 100644
--- a/v1.65/modules/account_data_callbacks.html
+++ b/v1.65/modules/account_data_callbacks.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -276,5 +289,7 @@ class CustomAccountDataModule:
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/modules/account_validity_callbacks.html b/v1.65/modules/account_validity_callbacks.html
index 0d52c79df8..add4bbafdf 100644
--- a/v1.65/modules/account_validity_callbacks.html
+++ b/v1.65/modules/account_validity_callbacks.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -214,5 +227,7 @@ represented by their Matrix user ID.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/modules/background_update_controller_callbacks.html b/v1.65/modules/background_update_controller_callbacks.html
index cd80faefdb..c4ab23923b 100644
--- a/v1.65/modules/background_update_controller_callbacks.html
+++ b/v1.65/modules/background_update_controller_callbacks.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -232,5 +245,7 @@ ensure that progress is always made.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/modules/index.html b/v1.65/modules/index.html
index af89d8e55c..ef9bacc22d 100644
--- a/v1.65/modules/index.html
+++ b/v1.65/modules/index.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -227,5 +240,7 @@ another part of Synapse's configuration file.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/modules/password_auth_provider_callbacks.html b/v1.65/modules/password_auth_provider_callbacks.html
index 0a6abe16ee..b1a1c5bd56 100644
--- a/v1.65/modules/password_auth_provider_callbacks.html
+++ b/v1.65/modules/password_auth_provider_callbacks.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -420,5 +433,7 @@ class MyAuthProvider:
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/modules/porting_legacy_module.html b/v1.65/modules/porting_legacy_module.html
index 5ef2d7c543..c829b18294 100644
--- a/v1.65/modules/porting_legacy_module.html
+++ b/v1.65/modules/porting_legacy_module.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -202,5 +215,7 @@ for more info).</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/modules/presence_router_callbacks.html b/v1.65/modules/presence_router_callbacks.html
index 8cce603734..6533af4f02 100644
--- a/v1.65/modules/presence_router_callbacks.html
+++ b/v1.65/modules/presence_router_callbacks.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -267,5 +280,7 @@ class CustomPresenceRouter:
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/modules/spam_checker_callbacks.html b/v1.65/modules/spam_checker_callbacks.html
index 1852246a31..c03454d70c 100644
--- a/v1.65/modules/spam_checker_callbacks.html
+++ b/v1.65/modules/spam_checker_callbacks.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -537,5 +550,7 @@ class ListSpamChecker:
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/modules/third_party_rules_callbacks.html b/v1.65/modules/third_party_rules_callbacks.html
index 7c281b1c65..e75c57f351 100644
--- a/v1.65/modules/third_party_rules_callbacks.html
+++ b/v1.65/modules/third_party_rules_callbacks.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -405,5 +418,7 @@ class EventCensorer:
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/modules/writing_a_module.html b/v1.65/modules/writing_a_module.html
index 8dabca3f2f..62ef7f6ed9 100644
--- a/v1.65/modules/writing_a_module.html
+++ b/v1.65/modules/writing_a_module.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -246,5 +259,7 @@ the callback name as the argument name and the function as its value. A
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/openid.html b/v1.65/openid.html
index f9a22ede96..df5278b686 100644
--- a/v1.65/openid.html
+++ b/v1.65/openid.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -704,5 +717,7 @@ needed to add OAuth2 capabilities to your Django projects. It supports
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/opentracing.html b/v1.65/opentracing.html
index 6430a672cf..56b143a522 100644
--- a/v1.65/opentracing.html
+++ b/v1.65/opentracing.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -259,5 +272,7 @@ logged to OpenTracing's logs.</li>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/other/running_synapse_on_single_board_computers.html b/v1.65/other/running_synapse_on_single_board_computers.html
index 813a4e9808..cb75303fd2 100644
--- a/v1.65/other/running_synapse_on_single_board_computers.html
+++ b/v1.65/other/running_synapse_on_single_board_computers.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -235,5 +248,7 @@ admin@homeserver:~$ sudo --user postgres psql matrix-synapse --command 'select c
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/password_auth_providers.html b/v1.65/password_auth_providers.html
index 7f9dd9d158..ddf8c52593 100644
--- a/v1.65/password_auth_providers.html
+++ b/v1.65/password_auth_providers.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -299,5 +312,7 @@ wait for the <code>Awaitable</code> to complete, but the result is ignored.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/postgres.html b/v1.65/postgres.html
index 98e0ec79fa..9efbc96166 100644
--- a/v1.65/postgres.html
+++ b/v1.65/postgres.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -393,5 +406,7 @@ successfully.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/print.html b/v1.65/print.html
index d2f0df57b5..66007c30a3 100644
--- a/v1.65/print.html
+++ b/v1.65/print.html
@@ -29,6 +29,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -104,6 +105,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -16502,10 +16515,12 @@ admin@homeserver:~$ sudo --user postgres psql matrix-synapse --command 'select c
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
         <script type="text/javascript">
         window.addEventListener('load', function() {
             window.setTimeout(window.print, 100);
         });
         </script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/replication.html b/v1.65/replication.html
index f73cf6333b..a0487c3986 100644
--- a/v1.65/replication.html
+++ b/v1.65/replication.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -217,5 +230,7 @@ the classes interact, can be found in
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/reverse_proxy.html b/v1.65/reverse_proxy.html
index 773ec6bc3e..ed847e840a 100644
--- a/v1.65/reverse_proxy.html
+++ b/v1.65/reverse_proxy.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -400,5 +413,7 @@ we do not recommend exposing them to the public internet without good reason.</p
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/room_and_user_statistics.html b/v1.65/room_and_user_statistics.html
index f25f9a127d..8cf5c6afba 100644
--- a/v1.65/room_and_user_statistics.html
+++ b/v1.65/room_and_user_statistics.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -200,5 +213,7 @@ statistics for a room. Each subject can only have one entry.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/server_notices.html b/v1.65/server_notices.html
index 5eedf8f39b..e5b4b25a5c 100644
--- a/v1.65/server_notices.html
+++ b/v1.65/server_notices.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -229,5 +242,7 @@ displayname and avatar of the Server Notices user.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/setup/forward_proxy.html b/v1.65/setup/forward_proxy.html
index 29b10b88b2..2504d4040b 100644
--- a/v1.65/setup/forward_proxy.html
+++ b/v1.65/setup/forward_proxy.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -260,5 +273,7 @@ your <a href="../usage/configuration/homeserver_sample_config.html">homserver.ya
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/setup/installation.html b/v1.65/setup/installation.html
index b2c973b217..661c142b5b 100644
--- a/v1.65/setup/installation.html
+++ b/v1.65/setup/installation.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -592,5 +605,7 @@ failing, e.g.:</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/sso_mapping_providers.html b/v1.65/sso_mapping_providers.html
index af5964478f..849347d044 100644
--- a/v1.65/sso_mapping_providers.html
+++ b/v1.65/sso_mapping_providers.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -436,5 +449,7 @@ specified in the config. It is located at
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/structured_logging.html b/v1.65/structured_logging.html
index 26f7e19c97..bd30a91cf8 100644
--- a/v1.65/structured_logging.html
+++ b/v1.65/structured_logging.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -254,5 +267,7 @@ remote endpoint at 10.1.2.3:9999.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/synctl_workers.html b/v1.65/synctl_workers.html
index 7e9e0d406d..38d7ffb680 100644
--- a/v1.65/synctl_workers.html
+++ b/v1.65/synctl_workers.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -208,5 +221,7 @@ notifications.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/systemd-with-workers/index.html b/v1.65/systemd-with-workers/index.html
index 3ae56ce5c6..74cb988766 100644
--- a/v1.65/systemd-with-workers/index.html
+++ b/v1.65/systemd-with-workers/index.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -278,5 +291,7 @@ the changes being applied at a glance.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/tcp_replication.html b/v1.65/tcp_replication.html
index 6b072a0acf..44756ae4ae 100644
--- a/v1.65/tcp_replication.html
+++ b/v1.65/tcp_replication.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -380,5 +393,7 @@ state</li>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/templates.html b/v1.65/templates.html
index 9565dfd7bd..349467dccd 100644
--- a/v1.65/templates.html
+++ b/v1.65/templates.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -467,5 +480,7 @@ When rendering, this template is given two variables:
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/turn-howto.html b/v1.65/turn-howto.html
index dd7de70530..884b0b9d3b 100644
--- a/v1.65/turn-howto.html
+++ b/v1.65/turn-howto.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -505,5 +518,7 @@ entry in the results.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/upgrade.html b/v1.65/upgrade.html
index 37f0fba7d8..efa6775f35 100644
--- a/v1.65/upgrade.html
+++ b/v1.65/upgrade.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -1750,5 +1763,7 @@ in the local HS will automatically rejoin the room.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/admin_api/background_updates.html b/v1.65/usage/administration/admin_api/background_updates.html
index 31d5ab4ed4..9e85c4b95c 100644
--- a/v1.65/usage/administration/admin_api/background_updates.html
+++ b/v1.65/usage/administration/admin_api/background_updates.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -255,5 +268,7 @@ background updates which won't be cancelled once started.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/admin_api/federation.html b/v1.65/usage/administration/admin_api/federation.html
index e4eeb9de6e..aff5798ceb 100644
--- a/v1.65/usage/administration/admin_api/federation.html
+++ b/v1.65/usage/administration/admin_api/federation.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -357,5 +370,7 @@ even if the API already returns the http status 200.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/admin_api/index.html b/v1.65/usage/administration/admin_api/index.html
index 411e10114c..830745934f 100644
--- a/v1.65/usage/administration/admin_api/index.html
+++ b/v1.65/usage/administration/admin_api/index.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -217,5 +230,7 @@ information from the Admin API.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/admin_api/registration_tokens.html b/v1.65/usage/administration/admin_api/registration_tokens.html
index 330fc171e1..b4d188ff79 100644
--- a/v1.65/usage/administration/admin_api/registration_tokens.html
+++ b/v1.65/usage/administration/admin_api/registration_tokens.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -423,5 +436,7 @@ the <a href="https://matrix.org/docs/spec/client_server/r0.6.1#api-standards">Ma
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/admin_faq.html b/v1.65/usage/administration/admin_faq.html
index 3f69db9694..c3bf2ef345 100644
--- a/v1.65/usage/administration/admin_faq.html
+++ b/v1.65/usage/administration/admin_faq.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -247,5 +260,7 @@ and <code>order_by</code> <code>state_events</code>.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/database_maintenance_tools.html b/v1.65/usage/administration/database_maintenance_tools.html
index a3ecc917c9..984b9d283b 100644
--- a/v1.65/usage/administration/database_maintenance_tools.html
+++ b/v1.65/usage/administration/database_maintenance_tools.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -197,5 +210,7 @@
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/index.html b/v1.65/usage/administration/index.html
index 520859cd18..2570a39db4 100644
--- a/v1.65/usage/administration/index.html
+++ b/v1.65/usage/administration/index.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -192,5 +205,7 @@
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/monitoring/reporting_homeserver_usage_statistics.html b/v1.65/usage/administration/monitoring/reporting_homeserver_usage_statistics.html
index fab77cb92b..3d77aa19e1 100644
--- a/v1.65/usage/administration/monitoring/reporting_homeserver_usage_statistics.html
+++ b/v1.65/usage/administration/monitoring/reporting_homeserver_usage_statistics.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -259,5 +272,7 @@ consider using one of the following known implementations:</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/request_log.html b/v1.65/usage/administration/request_log.html
index 2b8f33022a..c850487d6e 100644
--- a/v1.65/usage/administration/request_log.html
+++ b/v1.65/usage/administration/request_log.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -220,5 +233,7 @@ small processing times.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/state_groups.html b/v1.65/usage/administration/state_groups.html
index eb67ea29ed..7bd5f1d5b1 100644
--- a/v1.65/usage/administration/state_groups.html
+++ b/v1.65/usage/administration/state_groups.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -198,5 +211,7 @@
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/understanding_synapse_through_grafana_graphs.html b/v1.65/usage/administration/understanding_synapse_through_grafana_graphs.html
index 723cc78ed1..1c1c502ca6 100644
--- a/v1.65/usage/administration/understanding_synapse_through_grafana_graphs.html
+++ b/v1.65/usage/administration/understanding_synapse_through_grafana_graphs.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -235,5 +248,7 @@ to make use of multiple CPU cores / multiple machines for your homeserver.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/administration/useful_sql_for_admins.html b/v1.65/usage/administration/useful_sql_for_admins.html
index 5eaddf9ec5..f26e68fea5 100644
--- a/v1.65/usage/administration/useful_sql_for_admins.html
+++ b/v1.65/usage/administration/useful_sql_for_admins.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -355,5 +368,7 @@ WHERE room_stats_state.room_id = event_json.room_id&quot; | psql -d synapse -h l
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/configuration/config_documentation.html b/v1.65/usage/configuration/config_documentation.html
index 148eda5d9b..c660a0916d 100644
--- a/v1.65/usage/configuration/config_documentation.html
+++ b/v1.65/usage/configuration/config_documentation.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -3354,5 +3367,7 @@ Set a size to change the default.</li>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/configuration/homeserver_sample_config.html b/v1.65/usage/configuration/homeserver_sample_config.html
index b6018e5c69..cda6c85ef4 100644
--- a/v1.65/usage/configuration/homeserver_sample_config.html
+++ b/v1.65/usage/configuration/homeserver_sample_config.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -239,5 +252,7 @@ trusted_key_servers:
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/configuration/index.html b/v1.65/usage/configuration/index.html
index 3a7b750a65..e343fe79b8 100644
--- a/v1.65/usage/configuration/index.html
+++ b/v1.65/usage/configuration/index.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -188,5 +201,7 @@ file should have been generated when you <a href="../../setup/installation.html"
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/configuration/logging_sample_config.html b/v1.65/usage/configuration/logging_sample_config.html
index f401074b55..4ef51a2cd0 100644
--- a/v1.65/usage/configuration/logging_sample_config.html
+++ b/v1.65/usage/configuration/logging_sample_config.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -271,5 +284,7 @@ disable_existing_loggers: false
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/configuration/user_authentication/index.html b/v1.65/usage/configuration/user_authentication/index.html
index 5e3d6478ea..5bde0a8641 100644
--- a/v1.65/usage/configuration/user_authentication/index.html
+++ b/v1.65/usage/configuration/user_authentication/index.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -198,5 +211,7 @@ modules.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/configuration/user_authentication/refresh_tokens.html b/v1.65/usage/configuration/user_authentication/refresh_tokens.html
index 2f11980c21..c81ebeb2a4 100644
--- a/v1.65/usage/configuration/user_authentication/refresh_tokens.html
+++ b/v1.65/usage/configuration/user_authentication/refresh_tokens.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -307,5 +320,7 @@ above requirements will still hold.</em></p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/configuration/user_authentication/single_sign_on/cas.html b/v1.65/usage/configuration/user_authentication/single_sign_on/cas.html
index d9f9d971d8..b917ef19cb 100644
--- a/v1.65/usage/configuration/user_authentication/single_sign_on/cas.html
+++ b/v1.65/usage/configuration/user_authentication/single_sign_on/cas.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -191,5 +204,7 @@ sections of the configuration manual for more details.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/configuration/user_authentication/single_sign_on/index.html b/v1.65/usage/configuration/user_authentication/single_sign_on/index.html
index a45e24581a..88832f2027 100644
--- a/v1.65/usage/configuration/user_authentication/single_sign_on/index.html
+++ b/v1.65/usage/configuration/user_authentication/single_sign_on/index.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -189,5 +202,7 @@ auth provider modules.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/usage/configuration/user_authentication/single_sign_on/saml.html b/v1.65/usage/configuration/user_authentication/single_sign_on/saml.html
index 0f6a3ed06f..cbe49f3996 100644
--- a/v1.65/usage/configuration/user_authentication/single_sign_on/saml.html
+++ b/v1.65/usage/configuration/user_authentication/single_sign_on/saml.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="../../../../docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="../../../../docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="../../../../docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="../../../../docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -191,5 +204,7 @@ file</a> for more details.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="../../../../docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="../../../../docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="../../../../docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/user_directory.html b/v1.65/user_directory.html
index 723a308d2b..5338e8387f 100644
--- a/v1.65/user_directory.html
+++ b/v1.65/user_directory.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -240,5 +253,7 @@ different, but this isn't enforced by a constraint.</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/website_files/theme/index.hbs b/v1.65/website_files/theme/index.hbs
index 3b7a5b6163..b169323a43 100644
--- a/v1.65/website_files/theme/index.hbs
+++ b/v1.65/website_files/theme/index.hbs
@@ -131,6 +131,18 @@
                             <i class="fa fa-search"></i>
                         </button>
                         {{/if}}
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">{{ book_title }}</h1>
@@ -309,4 +321,4 @@
         {{/if}}
 
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/website_files/version-picker.css b/v1.65/website_files/version-picker.css
new file mode 100644
index 0000000000..28e5d5219a
--- /dev/null
+++ b/v1.65/website_files/version-picker.css
@@ -0,0 +1,78 @@
+.version-picker {
+    display: flex;
+    align-items: center;
+}
+
+.version-picker .dropdown {
+    width: 130px;
+    max-height: 29px;
+    margin-left: 10px;
+    display: inline-block;
+    border-radius: 4px;
+    border: 1px solid var(--theme-popup-border);
+    position: relative;
+    font-size: 13px;
+    color: var(--fg);
+    height: 100%;
+    text-align: left;
+}
+.version-picker .dropdown .select {
+    cursor: pointer;
+    display: block;
+    padding: 5px 2px 5px 15px;
+}
+.version-picker .dropdown .select > i {
+    font-size: 10px;
+    color: var(--fg);
+    cursor: pointer;
+    float: right;
+    line-height: 20px !important;
+}
+.version-picker .dropdown:hover {
+    border: 1px solid var(--theme-popup-border);
+}
+.version-picker .dropdown:active {
+    background-color: var(--theme-popup-bg);
+}
+.version-picker .dropdown.active:hover,
+.version-picker .dropdown.active {
+    border: 1px solid var(--theme-popup-border);
+    border-radius: 2px 2px 0 0;
+    background-color: var(--theme-popup-bg);
+}
+.version-picker .dropdown.active .select > i {
+    transform: rotate(-180deg);
+}
+.version-picker .dropdown .dropdown-menu {
+    position: absolute;
+    background-color: var(--theme-popup-bg);
+    width: 100%;
+    left: -1px;
+    right: 1px;
+    margin-top: 1px;
+    border: 1px solid var(--theme-popup-border);
+    border-radius: 0 0 4px 4px;
+    overflow: hidden;
+    display: none;
+    max-height: 300px;
+    overflow-y: auto;
+    z-index: 9;
+}
+.version-picker .dropdown .dropdown-menu li {
+    font-size: 12px;
+    padding: 6px 20px;
+    cursor: pointer;
+} 
+.version-picker .dropdown .dropdown-menu {
+    padding: 0;
+    list-style: none;
+}
+.version-picker .dropdown .dropdown-menu li:hover {
+    background-color: var(--theme-hover);
+}
+.version-picker .dropdown .dropdown-menu li.active::before {
+    display: inline-block;
+    content: "✓";
+    margin-inline-start: -14px;
+    width: 14px;
+}
\ No newline at end of file
diff --git a/v1.65/website_files/version-picker.js b/v1.65/website_files/version-picker.js
new file mode 100644
index 0000000000..bb35a7d896
--- /dev/null
+++ b/v1.65/website_files/version-picker.js
@@ -0,0 +1,127 @@
+
+const dropdown = document.querySelector('.version-picker .dropdown');
+const dropdownMenu = dropdown.querySelector('.dropdown-menu');
+
+fetchVersions(dropdown, dropdownMenu).then(() => {
+    initializeVersionDropdown(dropdown, dropdownMenu);
+});
+
+/**
+ * Initialize the dropdown functionality for version selection.
+ * 
+ * @param {Element} dropdown - The dropdown element.
+ * @param {Element} dropdownMenu - The dropdown menu element.
+ */
+function initializeVersionDropdown(dropdown, dropdownMenu) {
+    // Toggle the dropdown menu on click
+    dropdown.addEventListener('click', function () {
+        this.setAttribute('tabindex', 1);
+        this.classList.toggle('active');
+        dropdownMenu.style.display = (dropdownMenu.style.display === 'block') ? 'none' : 'block';
+    });
+  
+    // Remove the 'active' class and hide the dropdown menu on focusout
+    dropdown.addEventListener('focusout', function () {
+        this.classList.remove('active');
+        dropdownMenu.style.display = 'none';
+    });
+  
+    // Handle item selection within the dropdown menu
+    const dropdownMenuItems = dropdownMenu.querySelectorAll('li');    
+    dropdownMenuItems.forEach(function (item) {
+        item.addEventListener('click', function () {
+            dropdownMenuItems.forEach(function (item) {
+                item.classList.remove('active');
+            });
+            this.classList.add('active');
+            dropdown.querySelector('span').textContent = this.textContent;
+            dropdown.querySelector('input').value = this.getAttribute('id');
+
+            window.location.href = changeVersion(window.location.href, this.textContent);
+        });
+    });
+};
+
+/**
+ * This function fetches the available versions from a GitHub repository
+ * and inserts them into the version picker.
+ * 
+ * @param {Element} dropdown - The dropdown element.
+ * @param {Element} dropdownMenu - The dropdown menu element.
+ * @returns {Promise<Array<string>>} A promise that resolves with an array of available versions.
+ */
+function fetchVersions(dropdown, dropdownMenu) {
+    return new Promise((resolve, reject) => {
+        window.addEventListener("load", () => {
+
+            fetch("https://api.github.com/repos/matrix-org/synapse/git/trees/gh-pages", {
+                cache: "force-cache",
+            }).then(res => 
+                res.json()
+            ).then(resObject => {
+                const excluded = ['dev-docs', 'v1.91.0', 'v1.80.0', 'v1.69.0'];
+                const tree = resObject.tree.filter(item => item.type === "tree" && !excluded.includes(item.path));
+                const versions = tree.map(item => item.path).sort(sortVersions);
+
+                // Create a list of <li> items for versions
+                versions.forEach((version) => {
+                    const li = document.createElement("li");
+                    li.textContent = version;
+                    li.id = version;
+    
+                    if (window.SYNAPSE_VERSION === version) {
+                        li.classList.add('active');
+                        dropdown.querySelector('span').textContent = version;
+                        dropdown.querySelector('input').value = version;
+                    }
+    
+                    dropdownMenu.appendChild(li);
+                });
+
+                resolve(versions);
+
+            }).catch(ex => {
+                console.error("Failed to fetch version data", ex);
+                reject(ex);
+            })
+        });
+    });
+}
+
+/**
+ * Custom sorting function to sort an array of version strings.
+ *
+ * @param {string} a - The first version string to compare.
+ * @param {string} b - The second version string to compare.
+ * @returns {number} - A negative number if a should come before b, a positive number if b should come before a, or 0 if they are equal.
+ */
+function sortVersions(a, b) {
+    // Put 'develop' and 'latest' at the top
+    if (a === 'develop' || a === 'latest') return -1;
+    if (b === 'develop' || b === 'latest') return 1;
+
+    const versionA = (a.match(/v\d+(\.\d+)+/) || [])[0];
+    const versionB = (b.match(/v\d+(\.\d+)+/) || [])[0];
+
+    return versionB.localeCompare(versionA);
+}
+
+/**
+ * Change the version in a URL path.
+ *
+ * @param {string} url - The original URL to be modified.
+ * @param {string} newVersion - The new version to replace the existing version in the URL.
+ * @returns {string} The updated URL with the new version.
+ */
+function changeVersion(url, newVersion) {
+    const parsedURL = new URL(url);
+    const pathSegments = parsedURL.pathname.split('/');
+  
+    // Modify the version
+    pathSegments[2] = newVersion;
+
+    // Reconstruct the URL
+    parsedURL.pathname = pathSegments.join('/');
+  
+    return parsedURL.href;
+}
\ No newline at end of file
diff --git a/v1.65/website_files/version.js b/v1.65/website_files/version.js
new file mode 100644
index 0000000000..18449833b3
--- /dev/null
+++ b/v1.65/website_files/version.js
@@ -0,0 +1 @@
+window.SYNAPSE_VERSION = 'v1.65';
diff --git a/v1.65/welcome_and_overview.html b/v1.65/welcome_and_overview.html
index 290aac8a14..6bd68e1728 100644
--- a/v1.65/welcome_and_overview.html
+++ b/v1.65/welcome_and_overview.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -264,5 +277,7 @@ Policy</a>. Thank you!</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/v1.65/workers.html b/v1.65/workers.html
index 84b46af8d7..3dd3f49d2e 100644
--- a/v1.65/workers.html
+++ b/v1.65/workers.html
@@ -28,6 +28,7 @@
         <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
         <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
         <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
+        <link rel="stylesheet" href="docs/website_files/version-picker.css">
     </head>
     <body>
         <!-- Provide site root to javascript -->
@@ -103,6 +104,18 @@
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
+                        <div class="version-picker">
+                            <div class="dropdown">
+                                <div class="select">
+                                    <span></span>
+                                    <i class="fa fa-chevron-down"></i>
+                                </div>
+                                <input type="hidden" name="version">
+                                <ul class="dropdown-menu">
+                                    <!-- Versions will be added dynamically in version-picker.js -->
+                                </ul>
+                            </div>
+                        </div>      
                     </div>
 
                     <h1 class="menu-title">Synapse</h1>
@@ -736,5 +749,7 @@ in systemd service files, but not required for synctl).</p>
 
         <!-- Custom JS scripts -->
         <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
+        <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
+        <script type="text/javascript" src="docs/website_files/version.js"></script>
     </body>
-</html>
\ No newline at end of file
+</html>
author	Action Bot <action@synapse.bot.com>	2023-12-11 14:55:57 +0000
committer	Action Bot <action@synapse.bot.com>	2023-12-11 14:55:57 +0000
commit	dba7ae067629d885ff033ae2f2842744a11993d2 (patch)
tree	a95a79695494219ecafd959a48a54eb364f2c9fa /v1.65
parent	Version picker deployed for v1.66 docs to Github Pages (diff)
download	synapse-dba7ae067629d885ff033ae2f2842744a11993d2.tar.xz