Merge tag 'v1.47.0rc2' into develop

Synapse 1.47.0rc2 (2021-11-10)
==============================

This fixes an issue with publishing the Debian packages for 1.47.0rc1.
It is otherwise identical to 1.47.0rc1.

60 files changed, 101 insertions, 60 deletions

diff --git a/CHANGES.md b/CHANGES.md
index e74544f489..a188bd3f4d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,97 @@
+Synapse 1.47.0rc2 (2021-11-10)
+==============================
+
+This fixes an issue with publishing the Debian packages for 1.47.0rc1.
+It is otherwise identical to 1.47.0rc1.
+
+
+Synapse 1.47.0rc1 (2021-11-09)
+==============================
+
+Deprecations and Removals
+-------------------------
+
+- The `user_may_create_room_with_invites` module callback is now deprecated. Please refer to the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#upgrading-to-v1470) for more information. ([\#11206](https://github.com/matrix-org/synapse/issues/11206))
+- Remove deprecated admin API to delete rooms (`POST /_synapse/admin/v1/rooms/<room_id>/delete`). ([\#11213](https://github.com/matrix-org/synapse/issues/11213))
+
+
+Features
+--------
+
+- Advertise support for Client-Server API r0.6.1. ([\#11097](https://github.com/matrix-org/synapse/issues/11097))
+- Add search by room ID and room alias to the List Room admin API. ([\#11099](https://github.com/matrix-org/synapse/issues/11099))
+- Add an `on_new_event` third-party rules callback to allow Synapse modules to act after an event has been sent into a room. ([\#11126](https://github.com/matrix-org/synapse/issues/11126))
+- Add a module API method to update a user's membership in a room. ([\#11147](https://github.com/matrix-org/synapse/issues/11147))
+- Add metrics for thread pool usage. ([\#11178](https://github.com/matrix-org/synapse/issues/11178))
+- Support the stable room type field for [MSC3288](https://github.com/matrix-org/matrix-doc/pull/3288). ([\#11187](https://github.com/matrix-org/synapse/issues/11187))
+- Add a module API method to retrieve the current state of a room. ([\#11204](https://github.com/matrix-org/synapse/issues/11204))
+- Calculate a default value for `public_baseurl` based on `server_name`. ([\#11210](https://github.com/matrix-org/synapse/issues/11210))
+- Add support for serving `/.well-known/matrix/server` files, to redirect federation traffic to port 443. ([\#11211](https://github.com/matrix-org/synapse/issues/11211))
+- Add admin APIs to pause, start and check the status of background updates. ([\#11263](https://github.com/matrix-org/synapse/issues/11263))
+
+
+Bugfixes
+--------
+
+- Fix a long-standing bug which allowed hidden devices to receive to-device messages, resulting in unnecessary database bloat. ([\#10097](https://github.com/matrix-org/synapse/issues/10097))
+- Fix a long-standing bug where messages in the `device_inbox` table for deleted devices would persist indefinitely. Contributed by @dklimpel and @JohannesKleine. ([\#10969](https://github.com/matrix-org/synapse/issues/10969), [\#11212](https://github.com/matrix-org/synapse/issues/11212))
+- Do not accept events if a third-party rule `check_event_allowed` callback raises an exception. ([\#11033](https://github.com/matrix-org/synapse/issues/11033))
+- Fix long-standing bug where verification requests could fail in certain cases if a federation whitelist was in place but did not include your own homeserver. ([\#11129](https://github.com/matrix-org/synapse/issues/11129))
+- Allow an empty list of `state_events_at_start` to be sent when using the [MSC2716](https://github.com/matrix-org/matrix-doc/pull/2716) `/batch_send` endpoint and the author of the historical messages is already part of the current room state at the given `?prev_event_id`. ([\#11188](https://github.com/matrix-org/synapse/issues/11188))
+- Fix a bug introduced in Synapse 1.45.0 which prevented the `synapse_review_recent_signups` script from running. Contributed by @samuel-p. ([\#11191](https://github.com/matrix-org/synapse/issues/11191))
+- Delete `to_device` messages for hidden devices that will never be read, reducing database size. ([\#11199](https://github.com/matrix-org/synapse/issues/11199))
+- Fix a long-standing bug wherein a missing `Content-Type` header when downloading remote media would cause Synapse to throw an error. ([\#11200](https://github.com/matrix-org/synapse/issues/11200))
+- Fix a long-standing bug which could result in serialization errors and potentially duplicate transaction data when sending ephemeral events to application services. Contributed by @Fizzadar at Beeper. ([\#11207](https://github.com/matrix-org/synapse/issues/11207))
+- Fix a bug introduced in Synapse 1.35.0 which made it impossible to join rooms that return a `send_join` response containing floats. ([\#11217](https://github.com/matrix-org/synapse/issues/11217))
+- Fix long-standing bug where cross signing keys were not included in the response to `/r0/keys/query` the first time a remote user was queried. ([\#11234](https://github.com/matrix-org/synapse/issues/11234))
+- Fix a long-standing bug where all requests that read events from the database could get stuck as a result of losing the database connection. ([\#11240](https://github.com/matrix-org/synapse/issues/11240))
+- Fix a bug preventing Synapse from being rolled back to an earlier version when using workers. ([\#11255](https://github.com/matrix-org/synapse/issues/11255), [\#11276](https://github.com/matrix-org/synapse/issues/11276))
+- Fix a bug introduced in Synapse 1.37.1 which caused a remote event being processed by a worker to not get processed on restart if the worker was killed. ([\#11262](https://github.com/matrix-org/synapse/issues/11262))
+- Only allow old Element/Riot Android clients to send read receipts without a request body. All other clients must include a request body as required by the specification. Contributed by @rogersheu. ([\#11157](https://github.com/matrix-org/synapse/issues/11157))
+
+
+Updates to the Docker image
+---------------------------
+
+- Avoid changing user ID when started as a non-root user, and no explicit `UID` is set. ([\#11209](https://github.com/matrix-org/synapse/issues/11209))
+
+
+Improved Documentation
+----------------------
+
+- Improve example HAProxy config in the docs to properly handle HTTP `Host` headers with port information. This is required for federation over port 443 to work correctly. ([\#11128](https://github.com/matrix-org/synapse/issues/11128))
+- Add documentation for using Authentik as an OpenID Connect Identity Provider. Contributed by @samip5. ([\#11151](https://github.com/matrix-org/synapse/issues/11151))
+- Clarify lack of support for Windows. ([\#11198](https://github.com/matrix-org/synapse/issues/11198))
+- Improve code formatting and fix a few typos in docs. Contributed by @sumnerevans at Beeper. ([\#11221](https://github.com/matrix-org/synapse/issues/11221))
+- Add documentation for using LemonLDAP as an OpenID Connect Identity Provider. Contributed by @l00ptr. ([\#11257](https://github.com/matrix-org/synapse/issues/11257))
+
+
+Internal Changes
+----------------
+
+- Add type annotations for the `log_function` decorator. ([\#10943](https://github.com/matrix-org/synapse/issues/10943))
+- Add type hints to `synapse.events`. ([\#11098](https://github.com/matrix-org/synapse/issues/11098))
+- Remove and document unnecessary `RoomStreamToken` checks in application service ephemeral event code. ([\#11137](https://github.com/matrix-org/synapse/issues/11137))
+- Add type hints so that `synapse.http` passes `mypy` checks. ([\#11164](https://github.com/matrix-org/synapse/issues/11164))
+- Update scripts to pass Shellcheck lints. ([\#11166](https://github.com/matrix-org/synapse/issues/11166))
+- Add knock information in admin export. Contributed by Rafael Gonçalves. ([\#11171](https://github.com/matrix-org/synapse/issues/11171))
+- Add tests to check that `ClientIpStore.get_last_client_ip_by_device` and `get_user_ip_and_agents` combine database and in-memory data correctly. ([\#11179](https://github.com/matrix-org/synapse/issues/11179))
+- Refactor `Filter` to check different fields depending on the data type. ([\#11194](https://github.com/matrix-org/synapse/issues/11194))
+- Improve type hints for the relations datastore. ([\#11205](https://github.com/matrix-org/synapse/issues/11205))
+- Replace outdated links in the pull request checklist with links to the rendered documentation. ([\#11225](https://github.com/matrix-org/synapse/issues/11225))
+- Fix a bug in unit test `test_block_room_and_not_purge`. ([\#11226](https://github.com/matrix-org/synapse/issues/11226))
+- In `ObservableDeferred`, run observers in the order they were registered. ([\#11229](https://github.com/matrix-org/synapse/issues/11229))
+- Minor speed up to start up times and getting updates for groups by adding missing index to `local_group_updates.stream_id`. ([\#11231](https://github.com/matrix-org/synapse/issues/11231))
+- Add `twine` and `towncrier` as dev dependencies, as they're used by the release script. ([\#11233](https://github.com/matrix-org/synapse/issues/11233))
+- Allow `stream_writers.typing` config to be a list of one worker. ([\#11237](https://github.com/matrix-org/synapse/issues/11237))
+- Remove debugging statement in tests. ([\#11239](https://github.com/matrix-org/synapse/issues/11239))
+- Fix [MSC2716](https://github.com/matrix-org/matrix-doc/pull/2716) historical messages backfilling in random order on remote homeservers. ([\#11244](https://github.com/matrix-org/synapse/issues/11244))
+- Add an additional test for the `cachedList` method decorator. ([\#11246](https://github.com/matrix-org/synapse/issues/11246))
+- Make minor correction to the type of `auth_checkers` callbacks. ([\#11253](https://github.com/matrix-org/synapse/issues/11253))
+- Clean up trivial aspects of the Debian package build tooling. ([\#11269](https://github.com/matrix-org/synapse/issues/11269), [\#11273](https://github.com/matrix-org/synapse/issues/11273))
+- Blacklist new SyTest that checks that key uploads are valid pending the validation being implemented in Synapse. ([\#11270](https://github.com/matrix-org/synapse/issues/11270))
+
+
 Synapse 1.46.0 (2021-11-02)
 ===========================
 
diff --git a/changelog.d/10097.bugfix b/changelog.d/10097.bugfix
deleted file mode 100644
index 5d3d9587c2..0000000000
--- a/changelog.d/10097.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a long-standing bug which allowed hidden devices to receive to-device messages, resulting in unnecessary database bloat.
diff --git a/changelog.d/10943.misc b/changelog.d/10943.misc
deleted file mode 100644
index 3ce28d1a67..0000000000
--- a/changelog.d/10943.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add type annotations for the `log_function` decorator.
diff --git a/changelog.d/10969.bugfix b/changelog.d/10969.bugfix
deleted file mode 100644
index 89c299b8e8..0000000000
--- a/changelog.d/10969.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a long-standing bug where messages in the `device_inbox` table for deleted devices would persist indefinitely. Contributed by @dklimpel and @JohannesKleine.
diff --git a/changelog.d/11033.bugfix b/changelog.d/11033.bugfix
deleted file mode 100644
index fa99f187b8..0000000000
--- a/changelog.d/11033.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Do not accept events if a third-party rule module API callback raises an exception.
diff --git a/changelog.d/11097.feature b/changelog.d/11097.feature
deleted file mode 100644
index d7563a406c..0000000000
--- a/changelog.d/11097.feature
+++ /dev/null
@@ -1 +0,0 @@
-Advertise support for Client-Server API r0.6.1.
\ No newline at end of file
diff --git a/changelog.d/11098.misc b/changelog.d/11098.misc
deleted file mode 100644
index 1e337bee54..0000000000
--- a/changelog.d/11098.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add type hints to `synapse.events`.
diff --git a/changelog.d/11099.feature b/changelog.d/11099.feature
deleted file mode 100644
index c9126d4a9d..0000000000
--- a/changelog.d/11099.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add search by room ID and room alias to List Room admin API.
\ No newline at end of file
diff --git a/changelog.d/11126.feature b/changelog.d/11126.feature
deleted file mode 100644
index c6078fe081..0000000000
--- a/changelog.d/11126.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add an `on_new_event` third-party rules callback to allow Synapse modules to act after an event has been sent into a room.
diff --git a/changelog.d/11128.doc b/changelog.d/11128.doc
deleted file mode 100644
index c024679218..0000000000
--- a/changelog.d/11128.doc
+++ /dev/null
@@ -1 +0,0 @@
-Improve example HAProxy config in the docs to properly handle host headers with port information. This is required for federation over port 443 to work correctly.
diff --git a/changelog.d/11129.bugfix b/changelog.d/11129.bugfix
deleted file mode 100644
index 5e9aa538ec..0000000000
--- a/changelog.d/11129.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix long-standing bug where verification requests could fail in certain cases if whitelist was in place but did not include your own homeserver.
\ No newline at end of file
diff --git a/changelog.d/11137.misc b/changelog.d/11137.misc
deleted file mode 100644
index f0d6476f48..0000000000
--- a/changelog.d/11137.misc
+++ /dev/null
@@ -1 +0,0 @@
-Remove and document unnecessary `RoomStreamToken` checks in application service ephemeral event code.
\ No newline at end of file
diff --git a/changelog.d/11147.feature b/changelog.d/11147.feature
deleted file mode 100644
index af72d85c20..0000000000
--- a/changelog.d/11147.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add a module API method to update a user's membership in a room.
diff --git a/changelog.d/11151.doc b/changelog.d/11151.doc
deleted file mode 100644
index 68cd99471f..0000000000
--- a/changelog.d/11151.doc
+++ /dev/null
@@ -1 +0,0 @@
-Add documentation for using Authentik as an OpenID Connect Identity Provider. Contributed by @samip5.
\ No newline at end of file
diff --git a/changelog.d/11157.misc b/changelog.d/11157.misc
deleted file mode 100644
index 75444c51d1..0000000000
--- a/changelog.d/11157.misc
+++ /dev/null
@@ -1 +0,0 @@
-Only allow old Element/Riot Android clients to send read receipts without a request body. All other clients must include a request body as required by the specification. Contributed by @rogersheu.
diff --git a/changelog.d/11164.misc b/changelog.d/11164.misc
deleted file mode 100644
index 751da49183..0000000000
--- a/changelog.d/11164.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add type hints so that `synapse.http` passes `mypy` checks.
\ No newline at end of file
diff --git a/changelog.d/11166.misc b/changelog.d/11166.misc
deleted file mode 100644
index 79342e43d9..0000000000
--- a/changelog.d/11166.misc
+++ /dev/null
@@ -1 +0,0 @@
-Update scripts to pass Shellcheck lints.
diff --git a/changelog.d/11171.misc b/changelog.d/11171.misc
deleted file mode 100644
index b6a41a96da..0000000000
--- a/changelog.d/11171.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add knock information in admin export. Contributed by Rafael Gonçalves.
diff --git a/changelog.d/11178.feature b/changelog.d/11178.feature
deleted file mode 100644
index 10b1cdffdc..0000000000
--- a/changelog.d/11178.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add metrics for thread pool usage.
diff --git a/changelog.d/11179.misc b/changelog.d/11179.misc
deleted file mode 100644
index aded2e8367..0000000000
--- a/changelog.d/11179.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add tests to check that `ClientIpStore.get_last_client_ip_by_device` and `get_user_ip_and_agents` combine database and in-memory data correctly.
diff --git a/changelog.d/11187.feature b/changelog.d/11187.feature
deleted file mode 100644
index dd28109030..0000000000
--- a/changelog.d/11187.feature
+++ /dev/null
@@ -1 +0,0 @@
-Support the stable room type field for [MSC3288](https://github.com/matrix-org/matrix-doc/pull/3288).
diff --git a/changelog.d/11188.bugfix b/changelog.d/11188.bugfix
deleted file mode 100644
index 0688743c00..0000000000
--- a/changelog.d/11188.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Allow an empty list of `state_events_at_start` to be sent when using the [MSC2716](https://github.com/matrix-org/matrix-doc/pull/2716) `/batch_send` endpoint and the author of the historical messages is already part of the current room state at the given `?prev_event_id`.
diff --git a/changelog.d/11191.bugfix b/changelog.d/11191.bugfix
deleted file mode 100644
index 9104db7f0e..0000000000
--- a/changelog.d/11191.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug introduced in Synapse 1.45.0 which prevented the `synapse_review_recent_signups` script from running. Contributed by @samuel-p.
diff --git a/changelog.d/11194.misc b/changelog.d/11194.misc
deleted file mode 100644
index fc1d06ba89..0000000000
--- a/changelog.d/11194.misc
+++ /dev/null
@@ -1 +0,0 @@
-Refactor `Filter` to check different fields depending on the data type.
diff --git a/changelog.d/11198.doc b/changelog.d/11198.doc
deleted file mode 100644
index 54ec94acbc..0000000000
--- a/changelog.d/11198.doc
+++ /dev/null
@@ -1 +0,0 @@
-Clarify lack of support for Windows.
diff --git a/changelog.d/11199.bugfix b/changelog.d/11199.bugfix
deleted file mode 100644
index dc3ea8d515..0000000000
--- a/changelog.d/11199.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Delete `to_device` messages for hidden devices that will never be read, reducing database size.
\ No newline at end of file
diff --git a/changelog.d/11200.bugfix b/changelog.d/11200.bugfix
deleted file mode 100644
index c855081986..0000000000
--- a/changelog.d/11200.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a long-standing bug wherein a missing `Content-Type` header when downloading remote media would cause Synapse to throw an error.
\ No newline at end of file
diff --git a/changelog.d/11204.feature b/changelog.d/11204.feature
deleted file mode 100644
index f58ed4b3dc..0000000000
--- a/changelog.d/11204.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add a module API method to retrieve the current state of a room.
diff --git a/changelog.d/11205.misc b/changelog.d/11205.misc
deleted file mode 100644
index 62395c9432..0000000000
--- a/changelog.d/11205.misc
+++ /dev/null
@@ -1 +0,0 @@
-Improve type hints for the relations datastore.
diff --git a/changelog.d/11206.removal b/changelog.d/11206.removal
deleted file mode 100644
index cf05b16672..0000000000
--- a/changelog.d/11206.removal
+++ /dev/null
@@ -1 +0,0 @@
-The `user_may_create_room_with_invites` module callback is now deprecated. Please refer to the [upgrade notes](https://matrix-org.github.io/synapse/develop/upgrade#upgrading-to-v1470) for more information.
diff --git a/changelog.d/11207.bugfix b/changelog.d/11207.bugfix
deleted file mode 100644
index 7e98d565a1..0000000000
--- a/changelog.d/11207.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a long-standing bug which could result in serialization errors and potentially duplicate transaction data when sending ephemeral events to application services. Contributed by @Fizzadar at Beeper.
diff --git a/changelog.d/11209.docker b/changelog.d/11209.docker
deleted file mode 100644
index 838b165ac9..0000000000
--- a/changelog.d/11209.docker
+++ /dev/null
@@ -1 +0,0 @@
-Avoid changing userid when started as a non-root user, and no explicit `UID` is set.
diff --git a/changelog.d/11210.feature b/changelog.d/11210.feature
deleted file mode 100644
index 8f8e386415..0000000000
--- a/changelog.d/11210.feature
+++ /dev/null
@@ -1 +0,0 @@
-Calculate a default value for `public_baseurl` based on `server_name`.
diff --git a/changelog.d/11211.feature b/changelog.d/11211.feature
deleted file mode 100644
index feeb0cf089..0000000000
--- a/changelog.d/11211.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add support for serving `/.well-known/matrix/server` files, to redirect federation traffic to port 443.
diff --git a/changelog.d/11212.bugfix b/changelog.d/11212.bugfix
deleted file mode 100644
index ba6efab25b..0000000000
--- a/changelog.d/11212.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a long-standing bug where messages in the `device_inbox` table for deleted devices would persist indefinitely. Contributed by @dklimpel and @JohannesKleine.
\ No newline at end of file
diff --git a/changelog.d/11213.removal b/changelog.d/11213.removal
deleted file mode 100644
index 9e5ec936e3..0000000000
--- a/changelog.d/11213.removal
+++ /dev/null
@@ -1 +0,0 @@
-Remove deprecated admin API to delete rooms (`POST /_synapse/admin/v1/rooms/<room_id>/delete`).
\ No newline at end of file
diff --git a/changelog.d/11217.bugfix b/changelog.d/11217.bugfix
deleted file mode 100644
index 67ebb0d0e3..0000000000
--- a/changelog.d/11217.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug introduced in 1.35.0 which made it impossible to join rooms that return a `send_join` response containing floats.
\ No newline at end of file
diff --git a/changelog.d/11221.doc b/changelog.d/11221.doc
deleted file mode 100644
index 17010bac8b..0000000000
--- a/changelog.d/11221.doc
+++ /dev/null
@@ -1 +0,0 @@
-Improve code formatting and fix a few typos in docs. Contributed by @sumnerevans at Beeper.
diff --git a/changelog.d/11225.misc b/changelog.d/11225.misc
deleted file mode 100644
index f14f65f9d4..0000000000
--- a/changelog.d/11225.misc
+++ /dev/null
@@ -1 +0,0 @@
-Replace outdated links in the pull request checklist with links to the rendered documentation.
diff --git a/changelog.d/11226.misc b/changelog.d/11226.misc
deleted file mode 100644
index 9ed4760ae0..0000000000
--- a/changelog.d/11226.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug in unit test `test_block_room_and_not_purge`.
diff --git a/changelog.d/11229.misc b/changelog.d/11229.misc
deleted file mode 100644
index 7bb01cf079..0000000000
--- a/changelog.d/11229.misc
+++ /dev/null
@@ -1 +0,0 @@
-`ObservableDeferred`: run registered observers in order.
diff --git a/changelog.d/11231.misc b/changelog.d/11231.misc
deleted file mode 100644
index c7fca7071e..0000000000
--- a/changelog.d/11231.misc
+++ /dev/null
@@ -1 +0,0 @@
-Minor speed up to start up times and getting updates for groups by adding missing index to `local_group_updates.stream_id`.
diff --git a/changelog.d/11233.misc b/changelog.d/11233.misc
deleted file mode 100644
index fdf9e5642e..0000000000
--- a/changelog.d/11233.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add `twine` and `towncrier` as dev dependencies, as they're used by the release script.
diff --git a/changelog.d/11234.bugfix b/changelog.d/11234.bugfix
deleted file mode 100644
index c0c02a58f6..0000000000
--- a/changelog.d/11234.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix long-standing bug where cross signing keys were not included in the response to `/r0/keys/query` the first time a remote user was queried.
diff --git a/changelog.d/11237.misc b/changelog.d/11237.misc
deleted file mode 100644
index b90efc6535..0000000000
--- a/changelog.d/11237.misc
+++ /dev/null
@@ -1 +0,0 @@
-Allow `stream_writers.typing` config to be a list of one worker.
diff --git a/changelog.d/11239.misc b/changelog.d/11239.misc
deleted file mode 100644
index 48a796bed0..0000000000
--- a/changelog.d/11239.misc
+++ /dev/null
@@ -1 +0,0 @@
-Remove debugging statement in tests.
diff --git a/changelog.d/11240.bugfix b/changelog.d/11240.bugfix
deleted file mode 100644
index 94d73f67e3..0000000000
--- a/changelog.d/11240.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a long-standing bug where all requests that read events from the database could get stuck as a result of losing the database connection.
diff --git a/changelog.d/11244.misc b/changelog.d/11244.misc
deleted file mode 100644
index c6e65df97f..0000000000
--- a/changelog.d/11244.misc
+++ /dev/null
@@ -1 +0,0 @@
-Fix [MSC2716](https://github.com/matrix-org/matrix-doc/pull/2716) historical messages backfilling in random order on remote homeservers.
diff --git a/changelog.d/11246.misc b/changelog.d/11246.misc
deleted file mode 100644
index e5e912c1b0..0000000000
--- a/changelog.d/11246.misc
+++ /dev/null
@@ -1 +0,0 @@
-Add an additional test for the `cachedList` method decorator.
diff --git a/changelog.d/11253.misc b/changelog.d/11253.misc
deleted file mode 100644
index 71c55a2751..0000000000
--- a/changelog.d/11253.misc
+++ /dev/null
@@ -1 +0,0 @@
-Make minor correction to the type of `auth_checkers` callbacks.
diff --git a/changelog.d/11255.bugfix b/changelog.d/11255.bugfix
deleted file mode 100644
index ce72592624..0000000000
--- a/changelog.d/11255.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix rolling back Synapse version when using workers.
diff --git a/changelog.d/11257.doc b/changelog.d/11257.doc
deleted file mode 100644
index 1205be2add..0000000000
--- a/changelog.d/11257.doc
+++ /dev/null
@@ -1 +0,0 @@
-Add documentation for using LemonLDAP as an OpenID Connect Identity Provider. Contributed by @l00ptr.
diff --git a/changelog.d/11262.bugfix b/changelog.d/11262.bugfix
deleted file mode 100644
index 768fbb8973..0000000000
--- a/changelog.d/11262.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix a bug where if a remote event is being processed by a worker when it gets killed then it won't get processed on restart. Introduced in v1.37.1.
diff --git a/changelog.d/11263.feature b/changelog.d/11263.feature
deleted file mode 100644
index 831e76ec9f..0000000000
--- a/changelog.d/11263.feature
+++ /dev/null
@@ -1 +0,0 @@
-Add some background update admin APIs.
diff --git a/changelog.d/11269.misc b/changelog.d/11269.misc
deleted file mode 100644
index a2149c2d2d..0000000000
--- a/changelog.d/11269.misc
+++ /dev/null
@@ -1 +0,0 @@
-Clean up trivial aspects of the Debian package build tooling.
diff --git a/changelog.d/11270.misc b/changelog.d/11270.misc
deleted file mode 100644
index e2181b9b2a..0000000000
--- a/changelog.d/11270.misc
+++ /dev/null
@@ -1 +0,0 @@
-Blacklist new SyTest that checks that key uploads are valid pending the validation being implemented in Synapse.
diff --git a/changelog.d/11273.misc b/changelog.d/11273.misc
deleted file mode 100644
index a2149c2d2d..0000000000
--- a/changelog.d/11273.misc
+++ /dev/null
@@ -1 +0,0 @@
-Clean up trivial aspects of the Debian package build tooling.
diff --git a/changelog.d/11276.bugfix b/changelog.d/11276.bugfix
deleted file mode 100644
index ce72592624..0000000000
--- a/changelog.d/11276.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix rolling back Synapse version when using workers.
diff --git a/debian/changelog b/debian/changelog
index 74a98f0866..b3ebfb84c7 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,12 +1,16 @@
-matrix-synapse-py3 (1.47.0+nmu1) UNRELEASED; urgency=medium
+matrix-synapse-py3 (1.47.0~rc2) stable; urgency=medium
 
+  [ Dan Callahan ]
   * Update scripts to pass Shellcheck lints.
   * Remove unused Vagrant scripts from debian/ directory.
   * Allow building Debian packages for any architecture, not just amd64.
   * Preinstall the "wheel" package when building virtualenvs.
   * Do not error if /etc/default/matrix-synapse is missing.
 
- -- Dan Callahan <danc@element.io>  Fri, 22 Oct 2021 22:20:31 +0000
+  [ Synapse Packaging team ]
+  * New synapse release 1.47.0~rc2.
+
+ -- Synapse Packaging team <packages@matrix.org>  Wed, 10 Nov 2021 09:41:01 +0000
 
 matrix-synapse-py3 (1.46.0) stable; urgency=medium
 
diff --git a/synapse/__init__.py b/synapse/__init__.py
index 5ef34bce40..06b179a7e8 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -47,7 +47,7 @@ try:
 except ImportError:
     pass
 
-__version__ = "1.46.0"
+__version__ = "1.47.0rc2"
 
 if bool(os.environ.get("SYNAPSE_TEST_PATCH_LOG_CONTEXTS", False)):
     # We import here so that we don't have to install a bunch of deps when