diff --git a/changelog.d/8802.doc b/changelog.d/8802.doc
new file mode 100644
index 0000000000..580c4281f8
--- /dev/null
+++ b/changelog.d/8802.doc
@@ -0,0 +1 @@
+Fix the "Event persist rate" section of the included grafana dashboard by adding missing prometheus rules.
diff --git a/changelog.d/8821.bugfix b/changelog.d/8821.bugfix
new file mode 100644
index 0000000000..39f53174ad
--- /dev/null
+++ b/changelog.d/8821.bugfix
@@ -0,0 +1 @@
+Apply an IP range blacklist to push and key revocation requests.
diff --git a/changelog.d/8827.bugfix b/changelog.d/8827.bugfix
new file mode 100644
index 0000000000..18195680d3
--- /dev/null
+++ b/changelog.d/8827.bugfix
@@ -0,0 +1 @@
+Fix bug where we might not correctly calculate the current state for rooms with multiple extremities.
diff --git a/changelog.d/8829.removal b/changelog.d/8829.removal
new file mode 100644
index 0000000000..2f3708218b
--- /dev/null
+++ b/changelog.d/8829.removal
@@ -0,0 +1 @@
+Deprecate Shutdown Room and Purge Room Admin APIs.
diff --git a/changelog.d/8837.bugfix b/changelog.d/8837.bugfix
new file mode 100644
index 0000000000..b2977d0c31
--- /dev/null
+++ b/changelog.d/8837.bugfix
@@ -0,0 +1 @@
+Fix a long standing bug in the register admin endpoint (`/_synapse/admin/v1/register`) when the `mac` field was not provided. The endpoint now properly returns a 400 error. Contributed by @edwargix.
diff --git a/changelog.d/8839.doc b/changelog.d/8839.doc
new file mode 100644
index 0000000000..c35c59a763
--- /dev/null
+++ b/changelog.d/8839.doc
@@ -0,0 +1 @@
+Combine related media admin API docs.
\ No newline at end of file
diff --git a/changelog.d/8853.feature b/changelog.d/8853.feature
new file mode 100644
index 0000000000..63c59f4ff2
--- /dev/null
+++ b/changelog.d/8853.feature
@@ -0,0 +1 @@
+Add optional HTTP authentication to replication endpoints.
diff --git a/changelog.d/8858.bugfix b/changelog.d/8858.bugfix
new file mode 100644
index 0000000000..0d58cb9abc
--- /dev/null
+++ b/changelog.d/8858.bugfix
@@ -0,0 +1 @@
+Fix a long-standing bug on Synapse instances supporting Single-Sign-On, where users would be prompted to enter their password to confirm certain actions, even though they have not set a password.
diff --git a/changelog.d/8861.misc b/changelog.d/8861.misc
new file mode 100644
index 0000000000..9821f804cf
--- /dev/null
+++ b/changelog.d/8861.misc
@@ -0,0 +1 @@
+Remove some unnecessary stubbing from unit tests.
diff --git a/changelog.d/8862.bugfix b/changelog.d/8862.bugfix
new file mode 100644
index 0000000000..bdbd633f72
--- /dev/null
+++ b/changelog.d/8862.bugfix
@@ -0,0 +1 @@
+Fix a longstanding bug where a 500 error would be returned if the `Content-Length` header was not provided to the upload media resource.
diff --git a/changelog.d/8864.misc b/changelog.d/8864.misc
new file mode 100644
index 0000000000..a780883495
--- /dev/null
+++ b/changelog.d/8864.misc
@@ -0,0 +1 @@
+Remove unused `FakeResponse` class from unit tests.
diff --git a/changelog.d/8865.bugfix b/changelog.d/8865.bugfix
new file mode 100644
index 0000000000..a1e625f552
--- /dev/null
+++ b/changelog.d/8865.bugfix
@@ -0,0 +1 @@
+Add additional validation to pusher URLs to be compliant with the specification.
diff --git a/changelog.d/8867.bugfix b/changelog.d/8867.bugfix
new file mode 100644
index 0000000000..f2414ff111
--- /dev/null
+++ b/changelog.d/8867.bugfix
@@ -0,0 +1 @@
+Fix the error code that is returned when a user tries to register on a homeserver on which new-user registration has been disabled.
diff --git a/changelog.d/8870.bugfix b/changelog.d/8870.bugfix
new file mode 100644
index 0000000000..39f53174ad
--- /dev/null
+++ b/changelog.d/8870.bugfix
@@ -0,0 +1 @@
+Apply an IP range blacklist to push and key revocation requests.
diff --git a/changelog.d/8872.bugfix b/changelog.d/8872.bugfix
new file mode 100644
index 0000000000..ed00b70a0f
--- /dev/null
+++ b/changelog.d/8872.bugfix
@@ -0,0 +1 @@
+Fix a bug where `PUT /_synapse/admin/v2/users/<user_id>` failed to create a new user when `avatar_url` is specified. Bug introduced in Synapse v1.9.0.
diff --git a/changelog.d/8873.doc b/changelog.d/8873.doc
new file mode 100644
index 0000000000..0c2a043bd1
--- /dev/null
+++ b/changelog.d/8873.doc
@@ -0,0 +1 @@
+Fix an error in the documentation for the SAML username mapping provider.
diff --git a/changelog.d/8874.feature b/changelog.d/8874.feature
new file mode 100644
index 0000000000..720665ecac
--- /dev/null
+++ b/changelog.d/8874.feature
@@ -0,0 +1 @@
+Improve the error messages printed as a result of configuration problems for extension modules.
diff --git a/changelog.d/8879.misc b/changelog.d/8879.misc
new file mode 100644
index 0000000000..6f9516b314
--- /dev/null
+++ b/changelog.d/8879.misc
@@ -0,0 +1 @@
+Pass `room_id` to `get_auth_chain_difference`.
diff --git a/changelog.d/8880.misc b/changelog.d/8880.misc
new file mode 100644
index 0000000000..4ff0b94b94
--- /dev/null
+++ b/changelog.d/8880.misc
@@ -0,0 +1 @@
+Add type hints to push module.
diff --git a/changelog.d/8881.misc b/changelog.d/8881.misc
new file mode 100644
index 0000000000..07d3f30fb2
--- /dev/null
+++ b/changelog.d/8881.misc
@@ -0,0 +1 @@
+Simplify logic for handling user-interactive-auth via single-sign-on servers.
diff --git a/changelog.d/8882.misc b/changelog.d/8882.misc
new file mode 100644
index 0000000000..4ff0b94b94
--- /dev/null
+++ b/changelog.d/8882.misc
@@ -0,0 +1 @@
+Add type hints to push module.
diff --git a/changelog.d/8883.bugfix b/changelog.d/8883.bugfix
new file mode 100644
index 0000000000..6137fc5b2b
--- /dev/null
+++ b/changelog.d/8883.bugfix
@@ -0,0 +1 @@
+Fix a 500 error when attempting to preview an empty HTML file.
diff --git a/changelog.d/8886.feature b/changelog.d/8886.feature
new file mode 100644
index 0000000000..9e446f28bd
--- /dev/null
+++ b/changelog.d/8886.feature
@@ -0,0 +1 @@
+Add number of local devices to Room Details Admin API. Contributed by @dklimpel.
\ No newline at end of file
diff --git a/changelog.d/8887.feature b/changelog.d/8887.feature
new file mode 100644
index 0000000000..729eb1f1ea
--- /dev/null
+++ b/changelog.d/8887.feature
@@ -0,0 +1 @@
+Add `X-Robots-Tag` header to stop web crawlers from indexing media.
diff --git a/changelog.d/8890.feature b/changelog.d/8890.feature
new file mode 100644
index 0000000000..97aa72a76e
--- /dev/null
+++ b/changelog.d/8890.feature
@@ -0,0 +1 @@
+Spam-checkers may now define their methods as `async`.
diff --git a/changelog.d/8891.doc b/changelog.d/8891.doc
new file mode 100644
index 0000000000..c3947fe7c2
--- /dev/null
+++ b/changelog.d/8891.doc
@@ -0,0 +1 @@
+Clarify comments around template directories in `sample_config.yaml`.
diff --git a/changelog.d/8897.feature b/changelog.d/8897.feature
new file mode 100644
index 0000000000..d450ef4998
--- /dev/null
+++ b/changelog.d/8897.feature
@@ -0,0 +1 @@
+Add support for allowing users to pick their own user ID during a single-sign-on login.
diff --git a/changelog.d/8900.feature b/changelog.d/8900.feature
new file mode 100644
index 0000000000..d450ef4998
--- /dev/null
+++ b/changelog.d/8900.feature
@@ -0,0 +1 @@
+Add support for allowing users to pick their own user ID during a single-sign-on login.
diff --git a/changelog.d/8901.misc b/changelog.d/8901.misc
new file mode 100644
index 0000000000..4ff0b94b94
--- /dev/null
+++ b/changelog.d/8901.misc
@@ -0,0 +1 @@
+Add type hints to push module.
diff --git a/changelog.d/8905.misc b/changelog.d/8905.misc
new file mode 100644
index 0000000000..a9a11a2303
--- /dev/null
+++ b/changelog.d/8905.misc
@@ -0,0 +1 @@
+Skip the SAML tests if the requirements (`pysaml2` and `xmlsec1`) aren't available.
diff --git a/changelog.d/8906.misc b/changelog.d/8906.misc
new file mode 100644
index 0000000000..8b95e4c553
--- /dev/null
+++ b/changelog.d/8906.misc
@@ -0,0 +1 @@
+Fix multiarch docker image builds.
diff --git a/changelog.d/8909.misc b/changelog.d/8909.misc
new file mode 100644
index 0000000000..b45972f0fa
--- /dev/null
+++ b/changelog.d/8909.misc
@@ -0,0 +1 @@
+Don't publish `latest` docker image until all archs are built.
diff --git a/changelog.d/8911.feature b/changelog.d/8911.feature
new file mode 100644
index 0000000000..d450ef4998
--- /dev/null
+++ b/changelog.d/8911.feature
@@ -0,0 +1 @@
+Add support for allowing users to pick their own user ID during a single-sign-on login.
diff --git a/changelog.d/8916.misc b/changelog.d/8916.misc
new file mode 100644
index 0000000000..bf94135fd5
--- /dev/null
+++ b/changelog.d/8916.misc
@@ -0,0 +1 @@
+Various clean-ups to the structured logging and logging context code.
diff --git a/changelog.d/8918.bugfix b/changelog.d/8918.bugfix
new file mode 100644
index 0000000000..ae0f6745d7
--- /dev/null
+++ b/changelog.d/8918.bugfix
@@ -0,0 +1 @@
+Fix occasional deadlock when handling SIGHUP.
diff --git a/changelog.d/8920.bugfix b/changelog.d/8920.bugfix
new file mode 100644
index 0000000000..abcf186bda
--- /dev/null
+++ b/changelog.d/8920.bugfix
@@ -0,0 +1 @@
+Fix login API to not ratelimit application services that have ratelimiting disabled.
diff --git a/changelog.d/8921.bugfix b/changelog.d/8921.bugfix
new file mode 100644
index 0000000000..7f6f0b8a76
--- /dev/null
+++ b/changelog.d/8921.bugfix
@@ -0,0 +1 @@
+Fix bug where we ratelimited auto joining of rooms on registration (using `auto_join_rooms` config).
diff --git a/changelog.d/8935.misc b/changelog.d/8935.misc
new file mode 100644
index 0000000000..bf94135fd5
--- /dev/null
+++ b/changelog.d/8935.misc
@@ -0,0 +1 @@
+Various clean-ups to the structured logging and logging context code.
diff --git a/changelog.d/8937.bugfix b/changelog.d/8937.bugfix
new file mode 100644
index 0000000000..01e1848448
--- /dev/null
+++ b/changelog.d/8937.bugfix
@@ -0,0 +1 @@
+Fix bug introduced in Synapse v1.24.0 which would cause an exception on startup if both `enabled` and `localdb_enabled` were set to `False` in the `password_config` setting of the configuration file.
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