diff --git a/changelog.d/10119.misc b/changelog.d/10119.misc
new file mode 100644
index 0000000000..f70dc6496f
--- /dev/null
+++ b/changelog.d/10119.misc
@@ -0,0 +1 @@
+Improve event caching mechanism to avoid having multiple copies of an event in memory at a time.
diff --git a/changelog.d/10129.bugfix b/changelog.d/10129.bugfix
new file mode 100644
index 0000000000..292676ec8d
--- /dev/null
+++ b/changelog.d/10129.bugfix
@@ -0,0 +1 @@
+Add some clarification to the sample config file. Contributed by @Kentokamoto.
diff --git a/changelog.d/10435.feature b/changelog.d/10435.feature
new file mode 100644
index 0000000000..f93ef5b415
--- /dev/null
+++ b/changelog.d/10435.feature
@@ -0,0 +1 @@
+Experimental support for [MSC3288](https://github.com/matrix-org/matrix-doc/pull/3288), sending `room_type` to the identity server for 3pid invites over the `/store-invite` API.
diff --git a/changelog.d/10443.doc b/changelog.d/10443.doc
new file mode 100644
index 0000000000..3588e5487f
--- /dev/null
+++ b/changelog.d/10443.doc
@@ -0,0 +1 @@
+Add documentation for configuration a forward proxy.
diff --git a/changelog.d/10498.feature b/changelog.d/10498.feature
new file mode 100644
index 0000000000..5df896572d
--- /dev/null
+++ b/changelog.d/10498.feature
@@ -0,0 +1 @@
+Add support for "marker" events which makes historical events discoverable for servers that already have all of the scrollback history (part of MSC2716).
diff --git a/changelog.d/10504.misc b/changelog.d/10504.misc
new file mode 100644
index 0000000000..1479a5022d
--- /dev/null
+++ b/changelog.d/10504.misc
@@ -0,0 +1 @@
+Reduce errors in PostgreSQL logs due to concurrent serialization errors.
diff --git a/changelog.d/10507.misc b/changelog.d/10507.misc
new file mode 100644
index 0000000000..5dfd116e60
--- /dev/null
+++ b/changelog.d/10507.misc
@@ -0,0 +1 @@
+Include room ID in ignored EDU log messages. Contributed by @ilmari.
diff --git a/changelog.d/10513.feature b/changelog.d/10513.feature
new file mode 100644
index 0000000000..153b2df7b2
--- /dev/null
+++ b/changelog.d/10513.feature
@@ -0,0 +1 @@
+Add a configuration setting for the time a `/sync` response is cached for.
diff --git a/changelog.d/10527.misc b/changelog.d/10527.misc
new file mode 100644
index 0000000000..3cf22f9daf
--- /dev/null
+++ b/changelog.d/10527.misc
@@ -0,0 +1 @@
+Prepare for the new spaces summary endpoint (updates to [MSC2946](https://github.com/matrix-org/matrix-doc/pull/2946)).
diff --git a/changelog.d/10529.misc b/changelog.d/10529.misc
new file mode 100644
index 0000000000..4caf22523c
--- /dev/null
+++ b/changelog.d/10529.misc
@@ -0,0 +1 @@
+Fix CI to not break when run against branches rather than pull requests.
diff --git a/changelog.d/10530.misc b/changelog.d/10530.misc
new file mode 100644
index 0000000000..3cf22f9daf
--- /dev/null
+++ b/changelog.d/10530.misc
@@ -0,0 +1 @@
+Prepare for the new spaces summary endpoint (updates to [MSC2946](https://github.com/matrix-org/matrix-doc/pull/2946)).
diff --git a/changelog.d/10532.bugfix b/changelog.d/10532.bugfix
new file mode 100644
index 0000000000..d95e3d9b59
--- /dev/null
+++ b/changelog.d/10532.bugfix
@@ -0,0 +1 @@
+Fix a long-standing bug where protocols which are not implemented by any appservices were incorrectly returned via `GET /_matrix/client/r0/thirdparty/protocols`.
diff --git a/changelog.d/10537.misc b/changelog.d/10537.misc
new file mode 100644
index 0000000000..c9e045300c
--- /dev/null
+++ b/changelog.d/10537.misc
@@ -0,0 +1 @@
+Mark all events stemming from the MSC2716 `/batch_send` endpoint as historical.
diff --git a/changelog.d/10538.feature b/changelog.d/10538.feature
new file mode 100644
index 0000000000..120c8e8ca0
--- /dev/null
+++ b/changelog.d/10538.feature
@@ -0,0 +1 @@
+Add support for new redaction rules for historical events specified in [MSC2716](https://github.com/matrix-org/matrix-doc/pull/2716).
diff --git a/changelog.d/10539.misc b/changelog.d/10539.misc
new file mode 100644
index 0000000000..9a765435db
--- /dev/null
+++ b/changelog.d/10539.misc
@@ -0,0 +1 @@
+Clean up some of the federation event authentication code for clarity.
diff --git a/changelog.d/10541.bugfix b/changelog.d/10541.bugfix
new file mode 100644
index 0000000000..bb946e0920
--- /dev/null
+++ b/changelog.d/10541.bugfix
@@ -0,0 +1 @@
+Fix exceptions in logs when failing to get remote room list.
diff --git a/changelog.d/10542.misc b/changelog.d/10542.misc
new file mode 100644
index 0000000000..44b70b4730
--- /dev/null
+++ b/changelog.d/10542.misc
@@ -0,0 +1 @@
+Convert `Transaction` and `Edu` objects to attrs.
diff --git a/changelog.d/10546.feature b/changelog.d/10546.feature
new file mode 100644
index 0000000000..7709d010b3
--- /dev/null
+++ b/changelog.d/10546.feature
@@ -0,0 +1 @@
+Add a setting to disable TLS when sending email.
diff --git a/changelog.d/10550.bugfix b/changelog.d/10550.bugfix
new file mode 100644
index 0000000000..2e1b7c8bbb
--- /dev/null
+++ b/changelog.d/10550.bugfix
@@ -0,0 +1 @@
+Fix longstanding bug which caused the user "status" to be reset when the user went offline. Contributed by @dklimpel.
diff --git a/changelog.d/10551.doc b/changelog.d/10551.doc
new file mode 100644
index 0000000000..4a2b0785bf
--- /dev/null
+++ b/changelog.d/10551.doc
@@ -0,0 +1 @@
+Updated the reverse proxy documentation to highlight the homserver configuration that is needed to make Synapse aware that is is intentionally reverse proxied.
diff --git a/changelog.d/9581.feature b/changelog.d/9581.feature
new file mode 100644
index 0000000000..fa1949cd4b
--- /dev/null
+++ b/changelog.d/9581.feature
@@ -0,0 +1 @@
+Add `get_userinfo_by_id` method to ModuleApi.
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