Synapse 1.66.0 (2022-08-31)
===========================

No significant changes since 1.66.0rc2.

This release removes the ability for homeservers to delegate email ownership
verification and password reset confirmation to identity servers. This removal
was originally planned for Synapse 1.64, but was later deferred until now. See
the [upgrade notes](https://matrix-org.github.io/synapse/v1.66/upgrade.html#upgrading-to-v1660) for more details.

Deployments with multiple workers should note that the direct TCP replication
configuration was deprecated in Synapse v1.18.0 and will be removed in Synapse
v1.67.0. In particular, the TCP `replication` [listener](https://matrix-org.github.io/synapse/v1.66/usage/configuration/config_documentation.html#listeners)
type (not to be confused with the `replication` resource on the `http` listener
type) and the `worker_replication_port` config option will be removed .

To migrate to Redis, add the [`redis` config](https://matrix-org.github.io/synapse/v1.66/workers.html#shared-configuration),
then remove the TCP `replication` listener from config of the master and
`worker_replication_port` from worker config. Note that a HTTP listener with a
`replication` resource is still required. See the
[worker documentation](https://matrix-org.github.io/synapse/v1.66/workers.html)
for more details.

Synapse 1.66.0rc2 (2022-08-30)
==============================

Bugfixes
--------

- Fix a bug introduced in Synapse 1.66.0rc1 where the new rate limit metrics were misreported (`synapse_rate_limit_sleep_affected_hosts`, `synapse_rate_limit_reject_affected_hosts`). ([\#13649](https://github.com/matrix-org/synapse/issues/13649))

Synapse 1.66.0rc1 (2022-08-23)
==============================

Features
--------

- Improve validation of request bodies for the following client-server API endpoints: [`/account/password`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3accountpassword), [`/account/password/email/requestToken`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3accountpasswordemailrequesttoken), [`/account/deactivate`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3accountdeactivate) and [`/account/3pid/email/requestToken`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3account3pidemailrequesttoken). ([\#13188](https://github.com/matrix-org/synapse/issues/13188), [\#13563](https://github.com/matrix-org/synapse/issues/13563))
- Add forgotten status to [Room Details Admin API](https://matrix-org.github.io/synapse/latest/admin_api/rooms.html#room-details-api). ([\#13503](https://github.com/matrix-org/synapse/issues/13503))
- Add an experimental implementation for [MSC3852 (Expose user agents on `Device`)](https://github.com/matrix-org/matrix-spec-proposals/pull/3852). ([\#13549](https://github.com/matrix-org/synapse/issues/13549))
- Add `org.matrix.msc2716v4` experimental room version with updated content fields. Part of [MSC2716 (Importing history)](https://github.com/matrix-org/matrix-spec-proposals/pull/2716).  ([\#13551](https://github.com/matrix-org/synapse/issues/13551))
- Add support for compression to federation responses. ([\#13537](https://github.com/matrix-org/synapse/issues/13537))
- Improve performance of sending messages in rooms with thousands of local users. ([\#13522](https://github.com/matrix-org/synapse/issues/13522), [\#13547](https://github.com/matrix-org/synapse/issues/13547))

Bugfixes
--------

- Faster room joins: make `/joined_members` block whilst the room is partial stated. ([\#13514](https://github.com/matrix-org/synapse/issues/13514))
- Fix a bug introduced in Synapse 1.21.0 where the [`/event_reports` Admin API](https://matrix-org.github.io/synapse/develop/admin_api/event_reports.html) could return a total count which was larger than the number of results you can actually query for. ([\#13525](https://github.com/matrix-org/synapse/issues/13525))
- Fix a bug introduced in Synapse 1.52.0 where sending server notices fails if `max_avatar_size` or `allowed_avatar_mimetypes` is set and not `system_mxid_avatar_url`. ([\#13566](https://github.com/matrix-org/synapse/issues/13566))
- Fix a bug where the `opentracing.force_tracing_for_users` config option would not apply to [`/sendToDevice`](https://spec.matrix.org/v1.3/client-server-api/#put_matrixclientv3sendtodeviceeventtypetxnid) and [`/keys/upload`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3keysupload) requests. ([\#13574](https://github.com/matrix-org/synapse/issues/13574))

Improved Documentation
----------------------

- Add `openssl` example for generating registration HMAC digest. ([\#13472](https://github.com/matrix-org/synapse/issues/13472))
- Tidy up Synapse's README. ([\#13491](https://github.com/matrix-org/synapse/issues/13491))
- Document that event purging related to the `redaction_retention_period` config option is executed only every 5 minutes. ([\#13492](https://github.com/matrix-org/synapse/issues/13492))
- Add a warning to retention documentation regarding the possibility of database corruption. ([\#13497](https://github.com/matrix-org/synapse/issues/13497))
- Document that the `DOCKER_BUILDKIT=1` flag is needed to build the docker image. ([\#13515](https://github.com/matrix-org/synapse/issues/13515))
- Add missing links in `user_consent` section of configuration manual. ([\#13536](https://github.com/matrix-org/synapse/issues/13536))
- Fix the doc and some warnings that were referring to the nonexistent `custom_templates_directory` setting (instead of `custom_template_directory`). ([\#13538](https://github.com/matrix-org/synapse/issues/13538))

Deprecations and Removals
-------------------------

- Remove the ability for homeservers to delegate email ownership verification
  and password reset confirmation to identity servers. See [upgrade notes](https://matrix-org.github.io/synapse/v1.66/upgrade.html#upgrading-to-v1660) for more details.

Internal Changes
----------------

- Update the rejected state of events during de-partial-stating. ([\#13459](https://github.com/matrix-org/synapse/issues/13459))
- Avoid blocking lazy-loading `/sync`s during partial joins due to remote memberships. Pull remote memberships from auth events instead of the room state. ([\#13477](https://github.com/matrix-org/synapse/issues/13477))
- Refuse to start when faster joins is enabled on a deployment with workers, since worker configurations are not currently supported. ([\#13531](https://github.com/matrix-org/synapse/issues/13531))

- Allow use of both `@trace` and `@tag_args` stacked on the same function. ([\#13453](https://github.com/matrix-org/synapse/issues/13453))
- Instrument the federation/backfill part of `/messages` for understandable traces in Jaeger. ([\#13489](https://github.com/matrix-org/synapse/issues/13489))
- Instrument `FederationStateIdsServlet` (`/state_ids`) for understandable traces in Jaeger. ([\#13499](https://github.com/matrix-org/synapse/issues/13499), [\#13554](https://github.com/matrix-org/synapse/issues/13554))
- Track HTTP response times over 10 seconds from `/messages` (`synapse_room_message_list_rest_servlet_response_time_seconds`). ([\#13533](https://github.com/matrix-org/synapse/issues/13533))
- Add metrics to track how the rate limiter is affecting requests (sleep/reject). ([\#13534](https://github.com/matrix-org/synapse/issues/13534), [\#13541](https://github.com/matrix-org/synapse/issues/13541))
- Add metrics to time how long it takes us to do backfill processing (`synapse_federation_backfill_processing_before_time_seconds`, `synapse_federation_backfill_processing_after_time_seconds`). ([\#13535](https://github.com/matrix-org/synapse/issues/13535), [\#13584](https://github.com/matrix-org/synapse/issues/13584))
- Add metrics to track rate limiter queue timing (`synapse_rate_limit_queue_wait_time_seconds`). ([\#13544](https://github.com/matrix-org/synapse/issues/13544))
- Update metrics to track `/messages` response time by room size. ([\#13545](https://github.com/matrix-org/synapse/issues/13545))

- Refactor methods in `synapse.api.auth.Auth` to use `Requester` objects everywhere instead of user IDs. ([\#13024](https://github.com/matrix-org/synapse/issues/13024))
- Clean-up tests for notifications. ([\#13471](https://github.com/matrix-org/synapse/issues/13471))
- Add some miscellaneous comments to document sync, especially around `compute_state_delta`. ([\#13474](https://github.com/matrix-org/synapse/issues/13474))
- Use literals in place of `HTTPStatus` constants in tests. ([\#13479](https://github.com/matrix-org/synapse/issues/13479), [\#13488](https://github.com/matrix-org/synapse/issues/13488))
- Add comments about how event push actions are rotated. ([\#13485](https://github.com/matrix-org/synapse/issues/13485))
- Modify HTML template content to better support mobile devices' screen sizes. ([\#13493](https://github.com/matrix-org/synapse/issues/13493))
- Add a linter script which will reject non-strict types in Pydantic models. ([\#13502](https://github.com/matrix-org/synapse/issues/13502))
- Reduce the number of tests using legacy TCP replication. ([\#13543](https://github.com/matrix-org/synapse/issues/13543))
- Allow specifying additional request fields when using the `HomeServerTestCase.login` helper method. ([\#13549](https://github.com/matrix-org/synapse/issues/13549))
- Make `HomeServerTestCase` load any configured homeserver modules automatically. ([\#13558](https://github.com/matrix-org/synapse/issues/13558))

Synapse 1.67.0rc1 (2022-09-06)
==============================

This release removes using the deprecated direct TCP replication configuration
for workers. Server admins should use Redis instead. See the [upgrade
notes](https://matrix-org.github.io/synapse/v1.67/upgrade.html#upgrading-to-v1670).

The minimum version of `poetry` supported for managing source checkouts is now
1.2.0.

Notice: from the next major release (v1.68.0) installing Synapse from a source
checkout will require a recent Rust compiler. Those using packages or
`pip install matrix-synapse` will not be affected. See the [upgrade
notes](https://matrix-org.github.io/synapse/v1.67/upgrade.html#upgrading-to-v1670).

Features
--------

- Support setting the registration shared secret in a file, via a new `registration_shared_secret_path` configuration option. ([\#13614](https://github.com/matrix-org/synapse/issues/13614))
- Change the default startup behaviour so that any missing "additional" configuration files (signing key, etc) are generated automatically. ([\#13615](https://github.com/matrix-org/synapse/issues/13615))
- Improve performance of sending messages in rooms with thousands of local users. ([\#13634](https://github.com/matrix-org/synapse/issues/13634))

Bugfixes
--------

- Fix a bug introduced in Synapse 1.13 where the [List Rooms admin API](https://matrix-org.github.io/synapse/develop/admin_api/rooms.html#list-room-api) would return integers instead of booleans for the `federatable` and `public` fields when using a Sqlite database. ([\#13509](https://github.com/matrix-org/synapse/issues/13509))
- Fix bug that user cannot `/forget` rooms after the last member has left the room. ([\#13546](https://github.com/matrix-org/synapse/issues/13546))
- Faster Room Joins: fix `/make_knock` blocking indefinitely when the room in question is a partial-stated room. ([\#13583](https://github.com/matrix-org/synapse/issues/13583))
- Fix loading the current stream position behind the actual position. ([\#13585](https://github.com/matrix-org/synapse/issues/13585))
- Fix a longstanding bug in `register_new_matrix_user` which meant it was always necessary to explicitly give a server URL. ([\#13616](https://github.com/matrix-org/synapse/issues/13616))
- Fix the running of [MSC1763](https://github.com/matrix-org/matrix-spec-proposals/pull/1763) retention purge_jobs in deployments with background jobs running on a worker by forcing them back onto the main worker. Contributed by Brad @ Beeper. ([\#13632](https://github.com/matrix-org/synapse/issues/13632))
- Fix a long-standing bug that downloaded media for URL previews was not deleted while database background updates were running. ([\#13657](https://github.com/matrix-org/synapse/issues/13657))
- Fix [MSC3030](https://github.com/matrix-org/matrix-spec-proposals/pull/3030) `/timestamp_to_event` endpoint to return the correct next event when the events have the same timestamp. ([\#13658](https://github.com/matrix-org/synapse/issues/13658))
- Fix bug where we wedge media plugins if clients disconnect early. Introduced in v1.22.0. ([\#13660](https://github.com/matrix-org/synapse/issues/13660))
- Fix a long-standing bug which meant that keys for unwhitelisted servers were not returned by `/_matrix/key/v2/query`. ([\#13683](https://github.com/matrix-org/synapse/issues/13683))
- Fix a bug introduced in Synapse v1.20.0 that would cause the unstable unread counts from [MSC2654](https://github.com/matrix-org/matrix-spec-proposals/pull/2654) to be calculated even if the feature is disabled. ([\#13694](https://github.com/matrix-org/synapse/issues/13694))

Updates to the Docker image
---------------------------

- Update docker image to use a stable version of poetry. ([\#13688](https://github.com/matrix-org/synapse/issues/13688))

Improved Documentation
----------------------

- Improve the description of the ["chain cover index"](https://matrix-org.github.io/synapse/latest/auth_chain_difference_algorithm.html) used internally by Synapse. ([\#13602](https://github.com/matrix-org/synapse/issues/13602))
- Document how ["monthly active users"](https://matrix-org.github.io/synapse/latest/usage/administration/monthly_active_users.html) is calculated and used. ([\#13617](https://github.com/matrix-org/synapse/issues/13617))
- Improve documentation around user registration. ([\#13640](https://github.com/matrix-org/synapse/issues/13640))
- Remove documentation of legacy `frontend_proxy` worker app. ([\#13645](https://github.com/matrix-org/synapse/issues/13645))
- Clarify documentation that HTTP replication traffic can be protected with a shared secret. ([\#13656](https://github.com/matrix-org/synapse/issues/13656))
- Remove unintentional colons from [config manual](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html) headers. ([\#13665](https://github.com/matrix-org/synapse/issues/13665))
- Update docs to make enabling metrics more clear. ([\#13678](https://github.com/matrix-org/synapse/issues/13678))
- Clarify `(room_id, event_id)` global uniqueness and how we should scope our database schemas. ([\#13701](https://github.com/matrix-org/synapse/issues/13701))

Deprecations and Removals
-------------------------

- Drop support for calling `/_matrix/client/v3/rooms/{roomId}/invite` without an `id_access_token`, which was not permitted by the spec. Contributed by @Vetchu. ([\#13241](https://github.com/matrix-org/synapse/issues/13241))
- Remove redundant `_get_joined_users_from_context` cache. Contributed by Nick @ Beeper (@fizzadar). ([\#13569](https://github.com/matrix-org/synapse/issues/13569))
- Remove the ability to use direct TCP replication with workers. Direct TCP replication was deprecated in Synapse v1.18.0. Workers now require using Redis. ([\#13647](https://github.com/matrix-org/synapse/issues/13647))
- Remove support for unstable [private read receipts](https://github.com/matrix-org/matrix-spec-proposals/pull/2285). ([\#13653](https://github.com/matrix-org/synapse/issues/13653), [\#13692](https://github.com/matrix-org/synapse/issues/13692))

Internal Changes
----------------

- Extend the release script to wait for GitHub Actions to finish and to be usable as a guide for the whole process. ([\#13483](https://github.com/matrix-org/synapse/issues/13483))
- Add experimental configuration option to allow disabling legacy Prometheus metric names. ([\#13540](https://github.com/matrix-org/synapse/issues/13540))
- Cache user IDs instead of profiles to reduce cache memory usage. Contributed by Nick @ Beeper (@fizzadar). ([\#13573](https://github.com/matrix-org/synapse/issues/13573), [\#13600](https://github.com/matrix-org/synapse/issues/13600))
- Optimize how Synapse calculates domains to fetch from during backfill. ([\#13575](https://github.com/matrix-org/synapse/issues/13575))
- Comment about a better future where we can get the state diff between two events. ([\#13586](https://github.com/matrix-org/synapse/issues/13586))
- Instrument `_check_sigs_and_hash_and_fetch` to trace time spent in child concurrent calls for understandable traces in Jaeger. ([\#13588](https://github.com/matrix-org/synapse/issues/13588))
- Improve performance of `@cachedList`. ([\#13591](https://github.com/matrix-org/synapse/issues/13591))
- Minor speed up of fetching large numbers of push rules. ([\#13592](https://github.com/matrix-org/synapse/issues/13592))
- Optimise push action fetching queries. Contributed by Nick @ Beeper (@fizzadar). ([\#13597](https://github.com/matrix-org/synapse/issues/13597))
- Rename `event_map` to `unpersisted_events` when computing the auth differences. ([\#13603](https://github.com/matrix-org/synapse/issues/13603))
- Refactor `get_users_in_room(room_id)` mis-use with dedicated `get_current_hosts_in_room(room_id)` function. ([\#13605](https://github.com/matrix-org/synapse/issues/13605))
- Use dedicated `get_local_users_in_room(room_id)` function to find local users when calculating `join_authorised_via_users_server` of a `/make_join` request. ([\#13606](https://github.com/matrix-org/synapse/issues/13606))
- Refactor `get_users_in_room(room_id)` mis-use to lookup single local user with dedicated `check_local_user_in_room(...)` function. ([\#13608](https://github.com/matrix-org/synapse/issues/13608))
- Drop unused column `application_services_state.last_txn`. ([\#13627](https://github.com/matrix-org/synapse/issues/13627))
- Improve readability of Complement CI logs by printing failure results last. ([\#13639](https://github.com/matrix-org/synapse/issues/13639))
- Generalise the `@cancellable` annotation so it can be used on functions other than just servlet methods. ([\#13662](https://github.com/matrix-org/synapse/issues/13662))
- Introduce a `CommonUsageMetrics` class to share some usage metrics between the Prometheus exporter and the phone home stats. ([\#13671](https://github.com/matrix-org/synapse/issues/13671))
- Add some logging to help track down #13444. ([\#13679](https://github.com/matrix-org/synapse/issues/13679))
- Update poetry lock file for v1.2.0. ([\#13689](https://github.com/matrix-org/synapse/issues/13689))
- Add cache to `is_partial_state_room`. ([\#13693](https://github.com/matrix-org/synapse/issues/13693))
- Update the Grafana dashboard that is included with Synapse in the `contrib` directory. ([\#13697](https://github.com/matrix-org/synapse/issues/13697))
- Only run trial CI on all python versions on non-PRs. ([\#13698](https://github.com/matrix-org/synapse/issues/13698))
- Fix typechecking with latest types-jsonschema. ([\#13712](https://github.com/matrix-org/synapse/issues/13712))
- Reduce number of CI checks we run for PRs. ([\#13713](https://github.com/matrix-org/synapse/issues/13713))

Synapse 1.67.0 (2022-09-13)
===========================

This release removes using the deprecated direct TCP replication configuration
for workers. Server admins should use Redis instead. See the [upgrade
notes](https://matrix-org.github.io/synapse/v1.67/upgrade.html#upgrading-to-v1670).

The minimum version of `poetry` supported for managing source checkouts is now
1.2.0.

**Notice:** from the next major release (1.68.0) installing Synapse from a source
checkout will require a recent Rust compiler. Those using packages or
`pip install matrix-synapse` will not be affected. See the [upgrade
notes](https://matrix-org.github.io/synapse/v1.67/upgrade.html#upgrading-to-v1670).

**Notice:** from the next major release (1.68.0), running Synapse with a SQLite
database will require SQLite version 3.27.0 or higher. (The [current minimum
 version is SQLite 3.22.0](https://github.com/matrix-org/synapse/blob/release-v1.67/synapse/storage/engines/sqlite.py#L69-L78).)
See [#12983](https://github.com/matrix-org/synapse/issues/12983) and the [upgrade notes](https://matrix-org.github.io/synapse/v1.67/upgrade.html#upgrading-to-v1670) for more details.

No significant changes since 1.67.0rc1.

Synapse 1.67.0rc1 (2022-09-06)
==============================

Features
--------

- Support setting the registration shared secret in a file, via a new `registration_shared_secret_path` configuration option. ([\#13614](https://github.com/matrix-org/synapse/issues/13614))
- Change the default startup behaviour so that any missing "additional" configuration files (signing key, etc) are generated automatically. ([\#13615](https://github.com/matrix-org/synapse/issues/13615))
- Improve performance of sending messages in rooms with thousands of local users. ([\#13634](https://github.com/matrix-org/synapse/issues/13634))

Bugfixes
--------

- Fix a bug introduced in Synapse 1.13 where the [List Rooms admin API](https://matrix-org.github.io/synapse/develop/admin_api/rooms.html#list-room-api) would return integers instead of booleans for the `federatable` and `public` fields when using a Sqlite database. ([\#13509](https://github.com/matrix-org/synapse/issues/13509))
- Fix bug that user cannot `/forget` rooms after the last member has left the room. ([\#13546](https://github.com/matrix-org/synapse/issues/13546))
- Faster Room Joins: fix `/make_knock` blocking indefinitely when the room in question is a partial-stated room. ([\#13583](https://github.com/matrix-org/synapse/issues/13583))
- Fix loading the current stream position behind the actual position. ([\#13585](https://github.com/matrix-org/synapse/issues/13585))
- Fix a longstanding bug in `register_new_matrix_user` which meant it was always necessary to explicitly give a server URL. ([\#13616](https://github.com/matrix-org/synapse/issues/13616))
- Fix the running of [MSC1763](https://github.com/matrix-org/matrix-spec-proposals/pull/1763) retention purge_jobs in deployments with background jobs running on a worker by forcing them back onto the main worker. Contributed by Brad @ Beeper. ([\#13632](https://github.com/matrix-org/synapse/issues/13632))
- Fix a long-standing bug that downloaded media for URL previews was not deleted while database background updates were running. ([\#13657](https://github.com/matrix-org/synapse/issues/13657))
- Fix [MSC3030](https://github.com/matrix-org/matrix-spec-proposals/pull/3030) `/timestamp_to_event` endpoint to return the correct next event when the events have the same timestamp. ([\#13658](https://github.com/matrix-org/synapse/issues/13658))
- Fix bug where we wedge media plugins if clients disconnect early. Introduced in v1.22.0. ([\#13660](https://github.com/matrix-org/synapse/issues/13660))
- Fix a long-standing bug which meant that keys for unwhitelisted servers were not returned by `/_matrix/key/v2/query`. ([\#13683](https://github.com/matrix-org/synapse/issues/13683))
- Fix a bug introduced in Synapse v1.20.0 that would cause the unstable unread counts from [MSC2654](https://github.com/matrix-org/matrix-spec-proposals/pull/2654) to be calculated even if the feature is disabled. ([\#13694](https://github.com/matrix-org/synapse/issues/13694))

Updates to the Docker image
---------------------------

- Update docker image to use a stable version of poetry. ([\#13688](https://github.com/matrix-org/synapse/issues/13688))

Improved Documentation
----------------------

- Improve the description of the ["chain cover index"](https://matrix-org.github.io/synapse/latest/auth_chain_difference_algorithm.html) used internally by Synapse. ([\#13602](https://github.com/matrix-org/synapse/issues/13602))
- Document how ["monthly active users"](https://matrix-org.github.io/synapse/latest/usage/administration/monthly_active_users.html) is calculated and used. ([\#13617](https://github.com/matrix-org/synapse/issues/13617))
- Improve documentation around user registration. ([\#13640](https://github.com/matrix-org/synapse/issues/13640))
- Remove documentation of legacy `frontend_proxy` worker app. ([\#13645](https://github.com/matrix-org/synapse/issues/13645))
- Clarify documentation that HTTP replication traffic can be protected with a shared secret. ([\#13656](https://github.com/matrix-org/synapse/issues/13656))
- Remove unintentional colons from [config manual](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html) headers. ([\#13665](https://github.com/matrix-org/synapse/issues/13665))
- Update docs to make enabling metrics more clear. ([\#13678](https://github.com/matrix-org/synapse/issues/13678))
- Clarify `(room_id, event_id)` global uniqueness and how we should scope our database schemas. ([\#13701](https://github.com/matrix-org/synapse/issues/13701))

Deprecations and Removals
-------------------------

- Drop support for calling `/_matrix/client/v3/rooms/{roomId}/invite` without an `id_access_token`, which was not permitted by the spec. Contributed by @Vetchu. ([\#13241](https://github.com/matrix-org/synapse/issues/13241))
- Remove redundant `_get_joined_users_from_context` cache. Contributed by Nick @ Beeper (@fizzadar). ([\#13569](https://github.com/matrix-org/synapse/issues/13569))
- Remove the ability to use direct TCP replication with workers. Direct TCP replication was deprecated in Synapse v1.18.0. Workers now require using Redis. ([\#13647](https://github.com/matrix-org/synapse/issues/13647))
- Remove support for unstable [private read receipts](https://github.com/matrix-org/matrix-spec-proposals/pull/2285). ([\#13653](https://github.com/matrix-org/synapse/issues/13653), [\#13692](https://github.com/matrix-org/synapse/issues/13692))

Internal Changes
----------------

- Extend the release script to wait for GitHub Actions to finish and to be usable as a guide for the whole process. ([\#13483](https://github.com/matrix-org/synapse/issues/13483))
- Add experimental configuration option to allow disabling legacy Prometheus metric names. ([\#13540](https://github.com/matrix-org/synapse/issues/13540))
- Cache user IDs instead of profiles to reduce cache memory usage. Contributed by Nick @ Beeper (@fizzadar). ([\#13573](https://github.com/matrix-org/synapse/issues/13573), [\#13600](https://github.com/matrix-org/synapse/issues/13600))
- Optimize how Synapse calculates domains to fetch from during backfill. ([\#13575](https://github.com/matrix-org/synapse/issues/13575))
- Comment about a better future where we can get the state diff between two events. ([\#13586](https://github.com/matrix-org/synapse/issues/13586))
- Instrument `_check_sigs_and_hash_and_fetch` to trace time spent in child concurrent calls for understandable traces in Jaeger. ([\#13588](https://github.com/matrix-org/synapse/issues/13588))
- Improve performance of `@cachedList`. ([\#13591](https://github.com/matrix-org/synapse/issues/13591))
- Minor speed up of fetching large numbers of push rules. ([\#13592](https://github.com/matrix-org/synapse/issues/13592))
- Optimise push action fetching queries. Contributed by Nick @ Beeper (@fizzadar). ([\#13597](https://github.com/matrix-org/synapse/issues/13597))
- Rename `event_map` to `unpersisted_events` when computing the auth differences. ([\#13603](https://github.com/matrix-org/synapse/issues/13603))
- Refactor `get_users_in_room(room_id)` mis-use with dedicated `get_current_hosts_in_room(room_id)` function. ([\#13605](https://github.com/matrix-org/synapse/issues/13605))
- Use dedicated `get_local_users_in_room(room_id)` function to find local users when calculating `join_authorised_via_users_server` of a `/make_join` request. ([\#13606](https://github.com/matrix-org/synapse/issues/13606))
- Refactor `get_users_in_room(room_id)` mis-use to lookup single local user with dedicated `check_local_user_in_room(...)` function. ([\#13608](https://github.com/matrix-org/synapse/issues/13608))
- Drop unused column `application_services_state.last_txn`. ([\#13627](https://github.com/matrix-org/synapse/issues/13627))
- Improve readability of Complement CI logs by printing failure results last. ([\#13639](https://github.com/matrix-org/synapse/issues/13639))
- Generalise the `@cancellable` annotation so it can be used on functions other than just servlet methods. ([\#13662](https://github.com/matrix-org/synapse/issues/13662))
- Introduce a `CommonUsageMetrics` class to share some usage metrics between the Prometheus exporter and the phone home stats. ([\#13671](https://github.com/matrix-org/synapse/issues/13671))
- Add some logging to help track down #13444. ([\#13679](https://github.com/matrix-org/synapse/issues/13679))
- Update poetry lock file for v1.2.0. ([\#13689](https://github.com/matrix-org/synapse/issues/13689))
- Add cache to `is_partial_state_room`. ([\#13693](https://github.com/matrix-org/synapse/issues/13693))
- Update the Grafana dashboard that is included with Synapse in the `contrib` directory. ([\#13697](https://github.com/matrix-org/synapse/issues/13697))
- Only run trial CI on all python versions on non-PRs. ([\#13698](https://github.com/matrix-org/synapse/issues/13698))
- Fix typechecking with latest types-jsonschema. ([\#13712](https://github.com/matrix-org/synapse/issues/13712))
- Reduce number of CI checks we run for PRs. ([\#13713](https://github.com/matrix-org/synapse/issues/13713))

Synapse 1.68.0rc1 (2022-09-20)
==============================

Please note that Synapse will now refuse to start if configured to use a version of SQLite earlier than 3.27.

In addition, please note that installing Synapse from a source checkout now requires a recent Rust compiler.
Those using packages will not be affected. On most platforms, installing with `pip install matrix-synapse` will not be affected.
See the [upgrade notes](https://matrix-org.github.io/synapse/v1.68/upgrade.html#upgrading-to-v1670).

Features
--------

- Keep track of when we fail to process a pulled event over federation so we can intelligently back off in the future. ([\#13589](https://github.com/matrix-org/synapse/issues/13589), [\#13814](https://github.com/matrix-org/synapse/issues/13814))
- Add an [admin API endpoint to fetch messages within a particular window of time](https://matrix-org.github.io/synapse/v1.68/admin_api/rooms.html#room-messages-api). ([\#13672](https://github.com/matrix-org/synapse/issues/13672))
- Add an [admin API endpoint to find a user based on their external ID in an auth provider](https://matrix-org.github.io/synapse/v1.68/admin_api/user_admin_api.html#find-a-user-based-on-their-id-in-an-auth-provider). ([\#13810](https://github.com/matrix-org/synapse/issues/13810))
- Cancel the processing of key query requests when they time out. ([\#13680](https://github.com/matrix-org/synapse/issues/13680))
- Improve validation of request bodies for the following client-server API endpoints: [`/account/3pid/msisdn/requestToken`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3account3pidmsisdnrequesttoken), [`/org.matrix.msc3720/account_status`](https://github.com/matrix-org/matrix-spec-proposals/blob/babolivier/user_status/proposals/3720-account-status.md#post-_matrixclientv1account_status), [`/account/3pid/add`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3account3pidadd), [`/account/3pid/bind`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3account3pidbind), [`/account/3pid/delete`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3account3piddelete) and [`/account/3pid/unbind`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3account3pidunbind). ([\#13687](https://github.com/matrix-org/synapse/issues/13687), [\#13736](https://github.com/matrix-org/synapse/issues/13736))
- Document the timestamp when a user accepts the consent, if [consent tracking](https://matrix-org.github.io/synapse/latest/consent_tracking.html) is used. ([\#13741](https://github.com/matrix-org/synapse/issues/13741))
- Add a `listeners[x].request_id_header` configuration option to specify which request header to extract and use as the request ID in order to correlate requests from a reverse proxy. ([\#13801](https://github.com/matrix-org/synapse/issues/13801))

Bugfixes
--------

- Fix a bug introduced in Synapse v1.41.0 where the `/hierarchy` API returned non-standard information (a `room_id` field under each entry in `children_state`). ([\#13506](https://github.com/matrix-org/synapse/issues/13506))
- Fix a long-standing bug where previously rejected events could end up in room state because they pass auth checks given the current state of the room. ([\#13723](https://github.com/matrix-org/synapse/issues/13723))
- Fix a long-standing bug where Synapse fails to start if a signing key file contains an empty line. ([\#13738](https://github.com/matrix-org/synapse/issues/13738))
- Fix a long-standing bug where Synapse would fail to handle malformed user IDs or room aliases gracefully in certain cases. ([\#13746](https://github.com/matrix-org/synapse/issues/13746))
- Fix a long-standing bug where device lists would remain cached when remote users left and rejoined the last room shared with the local homeserver. ([\#13749](https://github.com/matrix-org/synapse/issues/13749), [\#13826](https://github.com/matrix-org/synapse/issues/13826))
- Fix a long-standing bug that could cause stale caches in some rare cases on the first startup of Synapse with replication. ([\#13766](https://github.com/matrix-org/synapse/issues/13766))
- Fix a long-standing spec compliance bug where Synapse would accept a trailing slash on the end of `/get_missing_events` federation requests. ([\#13789](https://github.com/matrix-org/synapse/issues/13789))
- Delete associated data from `event_failed_pull_attempts`, `insertion_events`, `insertion_event_extremities`, `insertion_event_extremities`, `insertion_event_extremities` when purging the room. ([\#13825](https://github.com/matrix-org/synapse/issues/13825))

Improved Documentation
----------------------

- Note that `libpq` is required on ARM-based Macs. ([\#13480](https://github.com/matrix-org/synapse/issues/13480))
- Fix a mistake in the config manual: the `event_cache_size` _is_ scaled by `caches.global_factor`. The documentation was incorrect since Synapse v1.22.0. ([\#13726](https://github.com/matrix-org/synapse/issues/13726))
- Fix a typo in the documentation for the login ratelimiting configuration. ([\#13727](https://github.com/matrix-org/synapse/issues/13727))
- Define Synapse's compatability policy for SQLite versions. ([\#13728](https://github.com/matrix-org/synapse/issues/13728))
- Add docs for common fix of deleting the `matrix_synapse.egg-info/` directory for fixing Python dependency problems. ([\#13785](https://github.com/matrix-org/synapse/issues/13785))
- Update request log format documentation to mention the format used when the authenticated user is controlling another user. ([\#13794](https://github.com/matrix-org/synapse/issues/13794))

Deprecations and Removals
-------------------------

- Synapse will now refuse to start if configured to use SQLite < 3.27. ([\#13760](https://github.com/matrix-org/synapse/issues/13760))
- Don't include redundant `prev_state` in new events. Contributed by Denis Kariakin (@dakariakin). ([\#13791](https://github.com/matrix-org/synapse/issues/13791))

Internal Changes
----------------

- Add a stub Rust crate. ([\#12595](https://github.com/matrix-org/synapse/issues/12595), [\#13734](https://github.com/matrix-org/synapse/issues/13734), [\#13735](https://github.com/matrix-org/synapse/issues/13735), [\#13743](https://github.com/matrix-org/synapse/issues/13743), [\#13763](https://github.com/matrix-org/synapse/issues/13763), [\#13769](https://github.com/matrix-org/synapse/issues/13769), [\#13778](https://github.com/matrix-org/synapse/issues/13778))
- Bump the minimum dependency of `matrix_common` to 1.3.0 to make use of the `MXCUri` class. Use `MXCUri` to simplify media retention test code. ([\#13162](https://github.com/matrix-org/synapse/issues/13162))
- Add and populate the `event_stream_ordering` column on the `receipts` table for future optimisation of push action processing. Contributed by Nick @ Beeper (@fizzadar). ([\#13703](https://github.com/matrix-org/synapse/issues/13703))
- Rename the `EventFormatVersions` enum values so that they line up with room version numbers. ([\#13706](https://github.com/matrix-org/synapse/issues/13706))
- Update trial old deps CI to use Poetry 1.2.0. ([\#13707](https://github.com/matrix-org/synapse/issues/13707), [\#13725](https://github.com/matrix-org/synapse/issues/13725))
- Add experimental configuration option to allow disabling legacy Prometheus metric names. ([\#13714](https://github.com/matrix-org/synapse/issues/13714), [\#13717](https://github.com/matrix-org/synapse/issues/13717), [\#13718](https://github.com/matrix-org/synapse/issues/13718))
- Fix typechecking with latest types-jsonschema. ([\#13724](https://github.com/matrix-org/synapse/issues/13724))
- Strip number suffix from instance name to consolidate services that traces are spread over. ([\#13729](https://github.com/matrix-org/synapse/issues/13729))
- Instrument `get_metadata_for_events` for understandable traces in Jaeger. ([\#13730](https://github.com/matrix-org/synapse/issues/13730))
- Remove old queries to join room memberships to current state events. Contributed by Nick @ Beeper (@fizzadar). ([\#13745](https://github.com/matrix-org/synapse/issues/13745))
- Avoid raising an error due to malformed user IDs in `get_current_hosts_in_room`. Malformed user IDs cannot currently join a room, so this error would not be hit. ([\#13748](https://github.com/matrix-org/synapse/issues/13748))
- Update the docstrings for `get_users_in_room` and `get_current_hosts_in_room` to explain the impact of partial state. ([\#13750](https://github.com/matrix-org/synapse/issues/13750))
- Use an additional database query when persisting receipts. ([\#13752](https://github.com/matrix-org/synapse/issues/13752))
- Preparatory work for storing thread IDs for notifications and receipts. ([\#13753](https://github.com/matrix-org/synapse/issues/13753))
- Re-type hint some collections as read-only. ([\#13754](https://github.com/matrix-org/synapse/issues/13754))
- Remove unused Prometheus recording rules from `synapse-v2.rules` and add comments describing where the rest are used. ([\#13756](https://github.com/matrix-org/synapse/issues/13756))
- Add a check for editable installs if the Rust library needs rebuilding. ([\#13759](https://github.com/matrix-org/synapse/issues/13759))
- Tag traces with the instance name to be able to easily jump into the right logs and filter traces by instance. ([\#13761](https://github.com/matrix-org/synapse/issues/13761))
- Concurrently fetch room push actions when calculating badge counts. Contributed by Nick @ Beeper (@fizzadar). ([\#13765](https://github.com/matrix-org/synapse/issues/13765))
- Update the script which makes full schema dumps. ([\#13770](https://github.com/matrix-org/synapse/issues/13770))
- Deduplicate `is_server_notices_room`. ([\#13780](https://github.com/matrix-org/synapse/issues/13780))
- Simplify the dependency DAG in the tests workflow. ([\#13784](https://github.com/matrix-org/synapse/issues/13784))
- Remove an old, incorrect migration file. ([\#13788](https://github.com/matrix-org/synapse/issues/13788))
- Remove unused method in `synapse.api.auth.Auth`. ([\#13795](https://github.com/matrix-org/synapse/issues/13795))
- Fix a memory leak when running the unit tests. ([\#13798](https://github.com/matrix-org/synapse/issues/13798))
- Use partial indices on SQLite. ([\#13802](https://github.com/matrix-org/synapse/issues/13802))
- Check that portdb generates the same postgres schema as that in the source tree. ([\#13808](https://github.com/matrix-org/synapse/issues/13808))
- Fix Docker build when Rust .so has been build locally first. ([\#13811](https://github.com/matrix-org/synapse/issues/13811))
- Complement: Initialise the Postgres database directly inside the target image instead of the base Postgres image to fix building using Buildah. ([\#13819](https://github.com/matrix-org/synapse/issues/13819))
- Support providing an index predicate clause when doing upserts. ([\#13822](https://github.com/matrix-org/synapse/issues/13822))
- Minor speedups to linting in CI. ([\#13827](https://github.com/matrix-org/synapse/issues/13827))

Synapse 1.68.0rc2 (2022-09-23)
==============================

Please note that Synapse will now refuse to start if configured to use a version of SQLite earlier than 3.27.

In addition, please note that installing Synapse from a source checkout now requires a recent Rust compiler.
Those using packages will not be affected. On most platforms, installing with `pip install matrix-synapse` will not be affected.
See the [upgrade notes](https://matrix-org.github.io/synapse/v1.68/upgrade.html#upgrading-to-v1670).

Bugfixes
--------

- Fix building from packaged sdist. Broke in v1.68.0rc1. ([\#13866](https://github.com/matrix-org/synapse/issues/13866))

Internal Changes
----------------

- Fix the release script not publishing binary wheels. ([\#13850](https://github.com/matrix-org/synapse/issues/13850))
- Lower minimum supported rustc version to 1.58.1. ([\#13857](https://github.com/matrix-org/synapse/issues/13857))
- Lock Rust dependencies versions. ([\#13858](https://github.com/matrix-org/synapse/issues/13858))

Synapse 1.68.0 (2022-09-27)
===========================

Please note that Synapse will now refuse to start if configured to use a version of SQLite older than 3.27.

In addition, please note that installing Synapse from a source checkout now requires a recent Rust compiler.
Those using packages will not be affected. On most platforms, installing with `pip install matrix-synapse` will not be affected.
See the [upgrade notes](https://matrix-org.github.io/synapse/v1.68/upgrade.html#upgrading-to-v1680).

Bugfixes
--------

- Fix packaging to include `Cargo.lock` in `sdist`. ([\#13909](https://github.com/matrix-org/synapse/issues/13909))

Synapse 1.68.0rc2 (2022-09-23)
==============================

Bugfixes
--------

- Fix building from packaged sdist. Broken in v1.68.0rc1. ([\#13866](https://github.com/matrix-org/synapse/issues/13866))

Internal Changes
----------------

- Fix the release script not publishing binary wheels. ([\#13850](https://github.com/matrix-org/synapse/issues/13850))
- Lower minimum supported rustc version to 1.58.1. ([\#13857](https://github.com/matrix-org/synapse/issues/13857))
- Lock Rust dependencies' versions. ([\#13858](https://github.com/matrix-org/synapse/issues/13858))

Synapse 1.68.0rc1 (2022-09-20)
==============================

Features
--------

- Keep track of when we fail to process a pulled event over federation so we can intelligently back off in the future. ([\#13589](https://github.com/matrix-org/synapse/issues/13589), [\#13814](https://github.com/matrix-org/synapse/issues/13814))
- Add an [admin API endpoint to fetch messages within a particular window of time](https://matrix-org.github.io/synapse/v1.68/admin_api/rooms.html#room-messages-api). ([\#13672](https://github.com/matrix-org/synapse/issues/13672))
- Add an [admin API endpoint to find a user based on their external ID in an auth provider](https://matrix-org.github.io/synapse/v1.68/admin_api/user_admin_api.html#find-a-user-based-on-their-id-in-an-auth-provider). ([\#13810](https://github.com/matrix-org/synapse/issues/13810))
- Cancel the processing of key query requests when they time out. ([\#13680](https://github.com/matrix-org/synapse/issues/13680))
- Improve validation of request bodies for the following client-server API endpoints: [`/account/3pid/msisdn/requestToken`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3account3pidmsisdnrequesttoken), [`/org.matrix.msc3720/account_status`](https://github.com/matrix-org/matrix-spec-proposals/blob/babolivier/user_status/proposals/3720-account-status.md#post-_matrixclientv1account_status), [`/account/3pid/add`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3account3pidadd), [`/account/3pid/bind`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3account3pidbind), [`/account/3pid/delete`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3account3piddelete) and [`/account/3pid/unbind`](https://spec.matrix.org/v1.3/client-server-api/#post_matrixclientv3account3pidunbind). ([\#13687](https://github.com/matrix-org/synapse/issues/13687), [\#13736](https://github.com/matrix-org/synapse/issues/13736))
- Document the timestamp when a user accepts the consent, if [consent tracking](https://matrix-org.github.io/synapse/latest/consent_tracking.html) is used. ([\#13741](https://github.com/matrix-org/synapse/issues/13741))
- Add a `listeners[x].request_id_header` configuration option to specify which request header to extract and use as the request ID in order to correlate requests from a reverse proxy. ([\#13801](https://github.com/matrix-org/synapse/issues/13801))

Bugfixes
--------

- Fix a bug introduced in Synapse 1.41.0 where the `/hierarchy` API returned non-standard information (a `room_id` field under each entry in `children_state`). ([\#13506](https://github.com/matrix-org/synapse/issues/13506))
- Fix a long-standing bug where previously rejected events could end up in room state because they pass auth checks given the current state of the room. ([\#13723](https://github.com/matrix-org/synapse/issues/13723))
- Fix a long-standing bug where Synapse fails to start if a signing key file contains an empty line. ([\#13738](https://github.com/matrix-org/synapse/issues/13738))
- Fix a long-standing bug where Synapse would fail to handle malformed user IDs or room aliases gracefully in certain cases. ([\#13746](https://github.com/matrix-org/synapse/issues/13746))
- Fix a long-standing bug where device lists would remain cached when remote users left and rejoined the last room shared with the local homeserver. ([\#13749](https://github.com/matrix-org/synapse/issues/13749), [\#13826](https://github.com/matrix-org/synapse/issues/13826))
- Fix a long-standing bug that could cause stale caches in some rare cases on the first startup of Synapse with replication. ([\#13766](https://github.com/matrix-org/synapse/issues/13766))
- Fix a long-standing spec compliance bug where Synapse would accept a trailing slash on the end of `/get_missing_events` federation requests. ([\#13789](https://github.com/matrix-org/synapse/issues/13789))
- Delete associated data from `event_failed_pull_attempts`, `insertion_events`, `insertion_event_extremities`, `insertion_event_extremities`, `insertion_event_extremities` when purging the room. ([\#13825](https://github.com/matrix-org/synapse/issues/13825))

Improved Documentation
----------------------

- Note that `libpq` is required on ARM-based Macs. ([\#13480](https://github.com/matrix-org/synapse/issues/13480))
- Fix a mistake in the config manual introduced in Synapse 1.22.0: the `event_cache_size` _is_ scaled by `caches.global_factor`. ([\#13726](https://github.com/matrix-org/synapse/issues/13726))
- Fix a typo in the documentation for the login ratelimiting configuration. ([\#13727](https://github.com/matrix-org/synapse/issues/13727))
- Define Synapse's compatability policy for SQLite versions. ([\#13728](https://github.com/matrix-org/synapse/issues/13728))
- Add docs for the common fix of deleting the `matrix_synapse.egg-info/` directory for fixing Python dependency problems. ([\#13785](https://github.com/matrix-org/synapse/issues/13785))
- Update request log format documentation to mention the format used when the authenticated user is controlling another user. ([\#13794](https://github.com/matrix-org/synapse/issues/13794))

Deprecations and Removals
-------------------------

- Synapse will now refuse to start if configured to use SQLite < 3.27. ([\#13760](https://github.com/matrix-org/synapse/issues/13760))
- Don't include redundant `prev_state` in new events. Contributed by Denis Kariakin (@dakariakin). ([\#13791](https://github.com/matrix-org/synapse/issues/13791))

Internal Changes
----------------

- Add a stub Rust crate. ([\#12595](https://github.com/matrix-org/synapse/issues/12595), [\#13734](https://github.com/matrix-org/synapse/issues/13734), [\#13735](https://github.com/matrix-org/synapse/issues/13735), [\#13743](https://github.com/matrix-org/synapse/issues/13743), [\#13763](https://github.com/matrix-org/synapse/issues/13763), [\#13769](https://github.com/matrix-org/synapse/issues/13769), [\#13778](https://github.com/matrix-org/synapse/issues/13778))
- Bump the minimum dependency of `matrix_common` to 1.3.0 to make use of the `MXCUri` class. Use `MXCUri` to simplify media retention test code. ([\#13162](https://github.com/matrix-org/synapse/issues/13162))
- Add and populate the `event_stream_ordering` column on the `receipts` table for future optimisation of push action processing. Contributed by Nick @ Beeper (@fizzadar). ([\#13703](https://github.com/matrix-org/synapse/issues/13703))
- Rename the `EventFormatVersions` enum values so that they line up with room version numbers. ([\#13706](https://github.com/matrix-org/synapse/issues/13706))
- Update trial old deps CI to use Poetry 1.2.0. ([\#13707](https://github.com/matrix-org/synapse/issues/13707), [\#13725](https://github.com/matrix-org/synapse/issues/13725))
- Add experimental configuration option to allow disabling legacy Prometheus metric names. ([\#13714](https://github.com/matrix-org/synapse/issues/13714), [\#13717](https://github.com/matrix-org/synapse/issues/13717), [\#13718](https://github.com/matrix-org/synapse/issues/13718))
- Fix typechecking with latest types-jsonschema. ([\#13724](https://github.com/matrix-org/synapse/issues/13724))
- Strip number suffix from instance name to consolidate services that traces are spread over. ([\#13729](https://github.com/matrix-org/synapse/issues/13729))
- Instrument `get_metadata_for_events` for understandable traces in Jaeger. ([\#13730](https://github.com/matrix-org/synapse/issues/13730))
- Remove old queries to join room memberships to current state events. Contributed by Nick @ Beeper (@fizzadar). ([\#13745](https://github.com/matrix-org/synapse/issues/13745))
- Avoid raising an error due to malformed user IDs in `get_current_hosts_in_room`. Malformed user IDs cannot currently join a room, so this error would not be hit. ([\#13748](https://github.com/matrix-org/synapse/issues/13748))
- Update the docstrings for `get_users_in_room` and `get_current_hosts_in_room` to explain the impact of partial state. ([\#13750](https://github.com/matrix-org/synapse/issues/13750))
- Use an additional database query when persisting receipts. ([\#13752](https://github.com/matrix-org/synapse/issues/13752))
- Preparatory work for storing thread IDs for notifications and receipts. ([\#13753](https://github.com/matrix-org/synapse/issues/13753))
- Re-type hint some collections as read-only. ([\#13754](https://github.com/matrix-org/synapse/issues/13754))
- Remove unused Prometheus recording rules from `synapse-v2.rules` and add comments describing where the rest are used. ([\#13756](https://github.com/matrix-org/synapse/issues/13756))
- Add a check for editable installs if the Rust library needs rebuilding. ([\#13759](https://github.com/matrix-org/synapse/issues/13759))
- Tag traces with the instance name to be able to easily jump into the right logs and filter traces by instance. ([\#13761](https://github.com/matrix-org/synapse/issues/13761))
- Concurrently fetch room push actions when calculating badge counts. Contributed by Nick @ Beeper (@fizzadar). ([\#13765](https://github.com/matrix-org/synapse/issues/13765))
- Update the script which makes full schema dumps. ([\#13770](https://github.com/matrix-org/synapse/issues/13770))
- Deduplicate `is_server_notices_room`. ([\#13780](https://github.com/matrix-org/synapse/issues/13780))
- Simplify the dependency DAG in the tests workflow. ([\#13784](https://github.com/matrix-org/synapse/issues/13784))
- Remove an old, incorrect migration file. ([\#13788](https://github.com/matrix-org/synapse/issues/13788))
- Remove unused method in `synapse.api.auth.Auth`. ([\#13795](https://github.com/matrix-org/synapse/issues/13795))
- Fix a memory leak when running the unit tests. ([\#13798](https://github.com/matrix-org/synapse/issues/13798))
- Use partial indices on SQLite. ([\#13802](https://github.com/matrix-org/synapse/issues/13802))
- Check that portdb generates the same postgres schema as that in the source tree. ([\#13808](https://github.com/matrix-org/synapse/issues/13808))
- Fix Docker build when Rust .so has been built locally first. ([\#13811](https://github.com/matrix-org/synapse/issues/13811))
- Complement: Initialise the Postgres database directly inside the target image instead of the base Postgres image to fix building using Buildah. ([\#13819](https://github.com/matrix-org/synapse/issues/13819))
- Support providing an index predicate clause when doing upserts. ([\#13822](https://github.com/matrix-org/synapse/issues/13822))
- Minor speedups to linting in CI. ([\#13827](https://github.com/matrix-org/synapse/issues/13827))

Synapse 1.69.0rc1 (2022-10-04)
==============================

Please note that legacy Prometheus metric names are now deprecated and will be removed in Synapse 1.73.0.
Server administrators should update their dashboards and alerting rules to avoid using the deprecated metric names.
See the [upgrade notes](https://matrix-org.github.io/synapse/v1.69/upgrade.html#upgrading-to-v1690) for more details.

Features
--------

- Allow application services to set the `origin_server_ts` of a state event by providing the query parameter `ts` in [`PUT /_matrix/client/r0/rooms/{roomId}/state/{eventType}/{stateKey}`](https://spec.matrix.org/v1.4/client-server-api/#put_matrixclientv3roomsroomidstateeventtypestatekey), per [MSC3316](https://github.com/matrix-org/matrix-doc/pull/3316). Contributed by @lukasdenk. ([\#11866](https://github.com/matrix-org/synapse/issues/11866))
- Allow server admins to require a manual approval process before new accounts can be used (using [MSC3866](https://github.com/matrix-org/matrix-spec-proposals/pull/3866)). ([\#13556](https://github.com/matrix-org/synapse/issues/13556))
- Exponentially backoff from backfilling the same event over and over. ([\#13635](https://github.com/matrix-org/synapse/issues/13635), [\#13936](https://github.com/matrix-org/synapse/issues/13936))
- Add cache invalidation across workers to module API. ([\#13667](https://github.com/matrix-org/synapse/issues/13667), [\#13947](https://github.com/matrix-org/synapse/issues/13947))
- Experimental implementation of [MSC3882](https://github.com/matrix-org/matrix-spec-proposals/pull/3882) to allow an existing device/session to generate a login token for use on a new device/session. ([\#13722](https://github.com/matrix-org/synapse/issues/13722), [\#13868](https://github.com/matrix-org/synapse/issues/13868))
- Experimental support for thread-specific receipts ([MSC3771](https://github.com/matrix-org/matrix-spec-proposals/pull/3771)). ([\#13782](https://github.com/matrix-org/synapse/issues/13782), [\#13893](https://github.com/matrix-org/synapse/issues/13893), [\#13932](https://github.com/matrix-org/synapse/issues/13932), [\#13937](https://github.com/matrix-org/synapse/issues/13937), [\#13939](https://github.com/matrix-org/synapse/issues/13939))
- Add experimental support for [MSC3881: Remotely toggle push notifications for another client](https://github.com/matrix-org/matrix-spec-proposals/pull/3881). ([\#13799](https://github.com/matrix-org/synapse/issues/13799), [\#13831](https://github.com/matrix-org/synapse/issues/13831), [\#13860](https://github.com/matrix-org/synapse/issues/13860))
- Keep track when an event pulled over federation fails its signature check so we can intelligently back-off in the future. ([\#13815](https://github.com/matrix-org/synapse/issues/13815))
- Improve validation for the unspecced, internal-only `_matrix/client/unstable/add_threepid/msisdn/submit_token` endpoint. ([\#13832](https://github.com/matrix-org/synapse/issues/13832))
- Faster remote room joins: record _when_ we first partial-join to a room. ([\#13892](https://github.com/matrix-org/synapse/issues/13892))
- Support a `dir` parameter on the `/relations` endpoint per [MSC3715](https://github.com/matrix-org/matrix-doc/pull/3715). ([\#13920](https://github.com/matrix-org/synapse/issues/13920))
- Ask mail servers receiving emails from Synapse to not send automatic replies (e.g. out-of-office responses). ([\#13957](https://github.com/matrix-org/synapse/issues/13957))

Bugfixes
--------

- Send push notifications for invites received over federation. ([\#13719](https://github.com/matrix-org/synapse/issues/13719), [\#14014](https://github.com/matrix-org/synapse/issues/14014))
- Fix a long-standing bug where typing events would be accepted from remote servers not present in a room. Also fix a bug where incoming typing events would cause other incoming events to get stuck during a fast join. ([\#13830](https://github.com/matrix-org/synapse/issues/13830))
- Fix a bug introduced in Synapse v1.53.0 where the experimental implementation of [MSC3715](https://github.com/matrix-org/matrix-spec-proposals/pull/3715) would give incorrect results when paginating forward. ([\#13840](https://github.com/matrix-org/synapse/issues/13840))
- Fix access token leak to logs from proxy agent. ([\#13855](https://github.com/matrix-org/synapse/issues/13855))
- Fix `have_seen_event` cache not being invalidated after we persist an event which causes inefficiency effects like extra `/state` federation calls. ([\#13863](https://github.com/matrix-org/synapse/issues/13863))
- Faster room joins: Fix a bug introduced in 1.66.0 where an error would be logged when syncing after joining a room. ([\#13872](https://github.com/matrix-org/synapse/issues/13872))
- Fix a bug introduced in 1.66.0 where some required fields in the pushrules sent to clients were not present anymore. Contributed by Nico. ([\#13904](https://github.com/matrix-org/synapse/issues/13904))
- Fix packaging to include `Cargo.lock` in `sdist`. ([\#13909](https://github.com/matrix-org/synapse/issues/13909))
- Fix a long-standing bug where device updates could cause delays sending out to-device messages over federation. ([\#13922](https://github.com/matrix-org/synapse/issues/13922))
- Fix a bug introduced in v1.68.0 where Synapse would require `setuptools_rust` at runtime, even though the package is only required at build time. ([\#13952](https://github.com/matrix-org/synapse/issues/13952))
- Fix a long-standing bug where `POST /_matrix/client/v3/keys/query` requests could result in excessively large SQL queries. ([\#13956](https://github.com/matrix-org/synapse/issues/13956))
- Fix a performance regression in the `get_users_in_room` database query. Introduced in v1.67.0. ([\#13972](https://github.com/matrix-org/synapse/issues/13972))
- Fix a bug introduced in v1.68.0 bug where Rust extension wasn't built in `release` mode when using `poetry install`. ([\#14009](https://github.com/matrix-org/synapse/issues/14009))
- Do not return an unspecified `original_event` field when using the stable `/relations` endpoint. Introduced in Synapse v1.57.0. ([\#14025](https://github.com/matrix-org/synapse/issues/14025))
- Correctly handle a race with device lists when a remote user leaves during a partial join. ([\#13885](https://github.com/matrix-org/synapse/issues/13885))
- Correctly handle sending local device list updates to remote servers during a partial join. ([\#13934](https://github.com/matrix-org/synapse/issues/13934))

Improved Documentation
----------------------

- Add `worker_main_http_uri` for the worker generator bash script. ([\#13772](https://github.com/matrix-org/synapse/issues/13772))
- Update URL for the NixOS module for Synapse. ([\#13818](https://github.com/matrix-org/synapse/issues/13818))
- Fix a mistake in sso_mapping_providers.md: `map_user_attributes` is expected to return `display_name`, not `displayname`. ([\#13836](https://github.com/matrix-org/synapse/issues/13836))
- Fix a cross-link from the registration admin API to the `registration_shared_secret` configuration documentation. ([\#13870](https://github.com/matrix-org/synapse/issues/13870))
- Update the man page for the `hash_password` script to correct the default number of bcrypt rounds performed. ([\#13911](https://github.com/matrix-org/synapse/issues/13911), [\#13930](https://github.com/matrix-org/synapse/issues/13930))
- Emphasize the right reasons when to use `(room_id, event_id)` in a database schema. ([\#13915](https://github.com/matrix-org/synapse/issues/13915))
- Add instruction to contributing guide for running unit tests in parallel. Contributed by @ashfame. ([\#13928](https://github.com/matrix-org/synapse/issues/13928))
- Clarify that the `auto_join_rooms` config option can also be used with Space aliases. ([\#13931](https://github.com/matrix-org/synapse/issues/13931))
- Add some cross references to worker documentation. ([\#13974](https://github.com/matrix-org/synapse/issues/13974))
- Linkify urls in config documentation. ([\#14003](https://github.com/matrix-org/synapse/issues/14003))

Deprecations and Removals
-------------------------

- Remove the `complete_sso_login` method from the Module API which was deprecated in Synapse 1.13.0. ([\#13843](https://github.com/matrix-org/synapse/issues/13843))
- Announce that legacy metric names are deprecated, will be turned off by default in Synapse v1.71.0 and removed altogether in Synapse v1.73.0. See the upgrade notes for more information. ([\#14024](https://github.com/matrix-org/synapse/issues/14024))

Internal Changes
----------------

- Speed up creation of DM rooms. ([\#13487](https://github.com/matrix-org/synapse/issues/13487), [\#13800](https://github.com/matrix-org/synapse/issues/13800))
- Port push rules to using Rust. ([\#13768](https://github.com/matrix-org/synapse/issues/13768), [\#13838](https://github.com/matrix-org/synapse/issues/13838), [\#13889](https://github.com/matrix-org/synapse/issues/13889))
- Optimise get rooms for user calls. Contributed by Nick @ Beeper (@fizzadar). ([\#13787](https://github.com/matrix-org/synapse/issues/13787))
- Update the script which makes full schema dumps. ([\#13792](https://github.com/matrix-org/synapse/issues/13792))
- Use shared methods for cache invalidation when persisting events, remove duplicate codepaths. Contributed by Nick @ Beeper (@fizzadar). ([\#13796](https://github.com/matrix-org/synapse/issues/13796))
- Improve the `synapse.api.auth.Auth` mock used in unit tests. ([\#13809](https://github.com/matrix-org/synapse/issues/13809))
- Faster Remote Room Joins: tell remote homeservers that we are unable to authorise them if they query a room which has partial state on our server. ([\#13823](https://github.com/matrix-org/synapse/issues/13823))
- Carry IdP Session IDs through user-mapping sessions. ([\#13839](https://github.com/matrix-org/synapse/issues/13839))
- Fix the release script not publishing binary wheels. ([\#13850](https://github.com/matrix-org/synapse/issues/13850))
- Raise issue if complement fails with latest deps. ([\#13859](https://github.com/matrix-org/synapse/issues/13859))
- Correct the comments in the complement dockerfile. ([\#13867](https://github.com/matrix-org/synapse/issues/13867))
- Create a new snapshot of the database schema. ([\#13873](https://github.com/matrix-org/synapse/issues/13873))
- Faster room joins: Send device list updates to most servers in rooms with partial state. ([\#13874](https://github.com/matrix-org/synapse/issues/13874), [\#14013](https://github.com/matrix-org/synapse/issues/14013))
- Add comments to the Prometheus recording rules to make it clear which set of rules you need for Grafana or Prometheus Console. ([\#13876](https://github.com/matrix-org/synapse/issues/13876))
- Only pull relevant backfill points from the database based on the current depth and limit (instead of all) every time we want to `/backfill`. ([\#13879](https://github.com/matrix-org/synapse/issues/13879))
- Faster room joins: Avoid waiting for full state when processing `/keys/changes` requests. ([\#13888](https://github.com/matrix-org/synapse/issues/13888))
- Improve backfill robustness by trying more servers when we get a `4xx` error back. ([\#13890](https://github.com/matrix-org/synapse/issues/13890))
- Fix mypy errors with canonicaljson 1.6.3. ([\#13905](https://github.com/matrix-org/synapse/issues/13905))
- Faster remote room joins: correctly handle remote device list updates during a partial join. ([\#13913](https://github.com/matrix-org/synapse/issues/13913))
- Complement image: propagate SIGTERM to all workers. ([\#13914](https://github.com/matrix-org/synapse/issues/13914))
- Update an innaccurate comment in Synapse's upsert database helper. ([\#13924](https://github.com/matrix-org/synapse/issues/13924))
- Update mypy (0.950 -> 0.981) and mypy-zope (0.3.7 -> 0.3.11). ([\#13925](https://github.com/matrix-org/synapse/issues/13925), [\#13993](https://github.com/matrix-org/synapse/issues/13993))
- Use dedicated `get_local_users_in_room(room_id)` function to find local users when calculating users to copy over during a room upgrade. ([\#13960](https://github.com/matrix-org/synapse/issues/13960))
- Refactor language in user directory `_track_user_joined_room` code to make it more clear that we use both local and remote users. ([\#13966](https://github.com/matrix-org/synapse/issues/13966))
- Revert catch-all exceptions being recorded as event pull attempt failures (only handle what we know about). ([\#13969](https://github.com/matrix-org/synapse/issues/13969))
- Speed up calculating push actions in large rooms. ([\#13973](https://github.com/matrix-org/synapse/issues/13973), [\#13992](https://github.com/matrix-org/synapse/issues/13992))
- Enable update notifications from Github's dependabot. ([\#13976](https://github.com/matrix-org/synapse/issues/13976))
- Prototype a workflow to automatically add changelogs to dependabot PRs. ([\#13998](https://github.com/matrix-org/synapse/issues/13998), [\#14011](https://github.com/matrix-org/synapse/issues/14011), [\#14017](https://github.com/matrix-org/synapse/issues/14017), [\#14021](https://github.com/matrix-org/synapse/issues/14021), [\#14027](https://github.com/matrix-org/synapse/issues/14027))
- Fix type annotations to be compatible with new annotations in development versions of twisted. ([\#14012](https://github.com/matrix-org/synapse/issues/14012))
- Clear out stale entries in `event_push_actions_staging` table. ([\#14020](https://github.com/matrix-org/synapse/issues/14020))
- Bump versions of GitHub actions. ([\#13978](https://github.com/matrix-org/synapse/issues/13978), [\#13979](https://github.com/matrix-org/synapse/issues/13979), [\#13980](https://github.com/matrix-org/synapse/issues/13980), [\#13982](https://github.com/matrix-org/synapse/issues/13982), [\#14015](https://github.com/matrix-org/synapse/issues/14015), [\#14019](https://github.com/matrix-org/synapse/issues/14019), [\#14022](https://github.com/matrix-org/synapse/issues/14022), [\#14023](https://github.com/matrix-org/synapse/issues/14023))

Synapse 1.69.0rc2 (2022-10-06)
==============================

Please note that legacy Prometheus metric names are now deprecated and will be removed in Synapse 1.73.0.
Server administrators should update their dashboards and alerting rules to avoid using the deprecated metric names.
See the [upgrade notes](https://matrix-org.github.io/synapse/v1.69/upgrade.html#upgrading-to-v1690) for more details.

Deprecations and Removals
-------------------------

- Deprecate the `generate_short_term_login_token` method in favor of an async `create_login_token` method in the Module API. ([\#13842](https://github.com/matrix-org/synapse/issues/13842))

Internal Changes
----------------

- Ensure Synapse v1.69 works with upcoming database changes in v1.70. ([\#14045](https://github.com/matrix-org/synapse/issues/14045))
- Fix a bug introduced in Synapse v1.68.0 where messages could not be sent in rooms with non-integer `notifications` power level. ([\#14073](https://github.com/matrix-org/synapse/issues/14073))
- Temporarily pin build-system requirements to workaround an incompatibility with poetry-core 1.3.0. This will be reverted before the v1.69.0 release proper, see [\#14079](https://github.com/matrix-org/synapse/issues/14079). ([\#14080](https://github.com/matrix-org/synapse/issues/14080))

Synapse 1.69.0rc3 (2022-10-12)
==============================

Please note that legacy Prometheus metric names are now deprecated and will be removed in Synapse 1.73.0.
Server administrators should update their dashboards and alerting rules to avoid using the deprecated metric names.
See the [upgrade notes](https://matrix-org.github.io/synapse/v1.69/upgrade.html#upgrading-to-v1690) for more details.

Bugfixes
--------

- Fix an issue with Docker images causing the Rust dependencies to not be pinned correctly. Introduced in v1.68.0 ([\#14129](https://github.com/matrix-org/synapse/issues/14129))
- Fix a bug introduced in Synapse 1.69.0rc1 which would cause registration replication requests to fail if the worker sending the request is not running Synapse 1.69. ([\#14135](https://github.com/matrix-org/synapse/issues/14135))
- Fix error in background update when rotating existing notifications. Introduced in v1.69.0rc2. ([\#14138](https://github.com/matrix-org/synapse/issues/14138))

Internal Changes
----------------

- Rename the `url_preview` extra to `url-preview`, for compatability with poetry-core 1.3.0 and [PEP 685](https://peps.python.org/pep-0685/). From-source installations using this extra will need to install using the new name. ([\#14085](https://github.com/matrix-org/synapse/issues/14085))

Synapse 1.69.0rc4 (2022-10-14)
==============================

Please note that legacy Prometheus metric names are now deprecated and will be removed in Synapse 1.73.0.
Server administrators should update their dashboards and alerting rules to avoid using the deprecated metric names.
See the [upgrade notes](https://matrix-org.github.io/synapse/v1.69/upgrade.html#upgrading-to-v1690) for more details.

Bugfixes
--------

- Fix poor performance of the `event_push_backfill_thread_id` background update, which was introduced in Synapse 1.68.0rc1. ([\#14172](https://github.com/matrix-org/synapse/issues/14172), [\#14181](https://github.com/matrix-org/synapse/issues/14181))

Updates to the Docker image
---------------------------

- Fix docker build OOMing in CI for arm64 builds. ([\#14173](https://github.com/matrix-org/synapse/issues/14173))

Synapse 1.69.0 (2022-10-17)
===========================

Please note that legacy Prometheus metric names are now deprecated and will be removed in Synapse 1.73.0.
Server administrators should update their dashboards and alerting rules to avoid using the deprecated metric names.
See the [upgrade notes](https://matrix-org.github.io/synapse/v1.69/upgrade.html#upgrading-to-v1690) for more details.

No significant changes since 1.69.0rc4.

Synapse 1.69.0rc4 (2022-10-14)
==============================

Bugfixes
--------

- Fix poor performance of the `event_push_backfill_thread_id` background update, which was introduced in Synapse 1.68.0rc1. ([\#14172](https://github.com/matrix-org/synapse/issues/14172), [\#14181](https://github.com/matrix-org/synapse/issues/14181))

Updates to the Docker image
---------------------------

- Fix docker build OOMing in CI for arm64 builds. ([\#14173](https://github.com/matrix-org/synapse/issues/14173))

Synapse 1.69.0rc3 (2022-10-12)
==============================

Bugfixes
--------

- Fix an issue with Docker images causing the Rust dependencies to not be pinned correctly. Introduced in v1.68.0 ([\#14129](https://github.com/matrix-org/synapse/issues/14129))
- Fix a bug introduced in Synapse 1.69.0rc1 which would cause registration replication requests to fail if the worker sending the request is not running Synapse 1.69. ([\#14135](https://github.com/matrix-org/synapse/issues/14135))
- Fix error in background update when rotating existing notifications. Introduced in v1.69.0rc2. ([\#14138](https://github.com/matrix-org/synapse/issues/14138))

Internal Changes
----------------

- Rename the `url_preview` extra to `url-preview`, for compatability with poetry-core 1.3.0 and [PEP 685](https://peps.python.org/pep-0685/). From-source installations using this extra will need to install using the new name. ([\#14085](https://github.com/matrix-org/synapse/issues/14085))

Synapse 1.69.0rc2 (2022-10-06)
==============================

Deprecations and Removals
-------------------------

- Deprecate the `generate_short_term_login_token` method in favor of an async `create_login_token` method in the Module API. ([\#13842](https://github.com/matrix-org/synapse/issues/13842))

Internal Changes
----------------

- Ensure Synapse v1.69 works with upcoming database changes in v1.70. ([\#14045](https://github.com/matrix-org/synapse/issues/14045))
- Fix a bug introduced in Synapse v1.68.0 where messages could not be sent in rooms with non-integer `notifications` power level. ([\#14073](https://github.com/matrix-org/synapse/issues/14073))
- Temporarily pin build-system requirements to workaround an incompatibility with poetry-core 1.3.0. This will be reverted before the v1.69.0 release proper, see [\#14079](https://github.com/matrix-org/synapse/issues/14079). ([\#14080](https://github.com/matrix-org/synapse/issues/14080))

Synapse 1.69.0rc1 (2022-10-04)
==============================

Features
--------

- Allow application services to set the `origin_server_ts` of a state event by providing the query parameter `ts` in [`PUT /_matrix/client/r0/rooms/{roomId}/state/{eventType}/{stateKey}`](https://spec.matrix.org/v1.4/client-server-api/#put_matrixclientv3roomsroomidstateeventtypestatekey), per [MSC3316](https://github.com/matrix-org/matrix-doc/pull/3316). Contributed by @lukasdenk. ([\#11866](https://github.com/matrix-org/synapse/issues/11866))
- Allow server admins to require a manual approval process before new accounts can be used (using [MSC3866](https://github.com/matrix-org/matrix-spec-proposals/pull/3866)). ([\#13556](https://github.com/matrix-org/synapse/issues/13556))
- Exponentially backoff from backfilling the same event over and over. ([\#13635](https://github.com/matrix-org/synapse/issues/13635), [\#13936](https://github.com/matrix-org/synapse/issues/13936))
- Add cache invalidation across workers to module API. ([\#13667](https://github.com/matrix-org/synapse/issues/13667), [\#13947](https://github.com/matrix-org/synapse/issues/13947))
- Experimental implementation of [MSC3882](https://github.com/matrix-org/matrix-spec-proposals/pull/3882) to allow an existing device/session to generate a login token for use on a new device/session. ([\#13722](https://github.com/matrix-org/synapse/issues/13722), [\#13868](https://github.com/matrix-org/synapse/issues/13868))
- Experimental support for thread-specific receipts ([MSC3771](https://github.com/matrix-org/matrix-spec-proposals/pull/3771)). ([\#13782](https://github.com/matrix-org/synapse/issues/13782), [\#13893](https://github.com/matrix-org/synapse/issues/13893), [\#13932](https://github.com/matrix-org/synapse/issues/13932), [\#13937](https://github.com/matrix-org/synapse/issues/13937), [\#13939](https://github.com/matrix-org/synapse/issues/13939))
- Add experimental support for [MSC3881: Remotely toggle push notifications for another client](https://github.com/matrix-org/matrix-spec-proposals/pull/3881). ([\#13799](https://github.com/matrix-org/synapse/issues/13799), [\#13831](https://github.com/matrix-org/synapse/issues/13831), [\#13860](https://github.com/matrix-org/synapse/issues/13860))
- Keep track when an event pulled over federation fails its signature check so we can intelligently back-off in the future. ([\#13815](https://github.com/matrix-org/synapse/issues/13815))
- Improve validation for the unspecced, internal-only `_matrix/client/unstable/add_threepid/msisdn/submit_token` endpoint. ([\#13832](https://github.com/matrix-org/synapse/issues/13832))
- Faster remote room joins: record _when_ we first partial-join to a room. ([\#13892](https://github.com/matrix-org/synapse/issues/13892))
- Support a `dir` parameter on the `/relations` endpoint per [MSC3715](https://github.com/matrix-org/matrix-doc/pull/3715). ([\#13920](https://github.com/matrix-org/synapse/issues/13920))
- Ask mail servers receiving emails from Synapse to not send automatic replies (e.g. out-of-office responses). ([\#13957](https://github.com/matrix-org/synapse/issues/13957))

Bugfixes
--------

- Send push notifications for invites received over federation. ([\#13719](https://github.com/matrix-org/synapse/issues/13719), [\#14014](https://github.com/matrix-org/synapse/issues/14014))
- Fix a long-standing bug where typing events would be accepted from remote servers not present in a room. Also fix a bug where incoming typing events would cause other incoming events to get stuck during a fast join. ([\#13830](https://github.com/matrix-org/synapse/issues/13830))
- Fix a bug introduced in Synapse v1.53.0 where the experimental implementation of [MSC3715](https://github.com/matrix-org/matrix-spec-proposals/pull/3715) would give incorrect results when paginating forward. ([\#13840](https://github.com/matrix-org/synapse/issues/13840))
- Fix access token leak to logs from proxy agent. ([\#13855](https://github.com/matrix-org/synapse/issues/13855))
- Fix `have_seen_event` cache not being invalidated after we persist an event which causes inefficiency effects like extra `/state` federation calls. ([\#13863](https://github.com/matrix-org/synapse/issues/13863))
- Faster room joins: Fix a bug introduced in 1.66.0 where an error would be logged when syncing after joining a room. ([\#13872](https://github.com/matrix-org/synapse/issues/13872))
- Fix a bug introduced in 1.66.0 where some required fields in the pushrules sent to clients were not present anymore. Contributed by Nico. ([\#13904](https://github.com/matrix-org/synapse/issues/13904))
- Fix packaging to include `Cargo.lock` in `sdist`. ([\#13909](https://github.com/matrix-org/synapse/issues/13909))
- Fix a long-standing bug where device updates could cause delays sending out to-device messages over federation. ([\#13922](https://github.com/matrix-org/synapse/issues/13922))
- Fix a bug introduced in v1.68.0 where Synapse would require `setuptools_rust` at runtime, even though the package is only required at build time. ([\#13952](https://github.com/matrix-org/synapse/issues/13952))
- Fix a long-standing bug where `POST /_matrix/client/v3/keys/query` requests could result in excessively large SQL queries. ([\#13956](https://github.com/matrix-org/synapse/issues/13956))
- Fix a performance regression in the `get_users_in_room` database query. Introduced in v1.67.0. ([\#13972](https://github.com/matrix-org/synapse/issues/13972))
- Fix a bug introduced in v1.68.0 bug where Rust extension wasn't built in `release` mode when using `poetry install`. ([\#14009](https://github.com/matrix-org/synapse/issues/14009))
- Do not return an unspecified `original_event` field when using the stable `/relations` endpoint. Introduced in Synapse v1.57.0. ([\#14025](https://github.com/matrix-org/synapse/issues/14025))
- Correctly handle a race with device lists when a remote user leaves during a partial join. ([\#13885](https://github.com/matrix-org/synapse/issues/13885))
- Correctly handle sending local device list updates to remote servers during a partial join. ([\#13934](https://github.com/matrix-org/synapse/issues/13934))

Improved Documentation
----------------------

- Add `worker_main_http_uri` for the worker generator bash script. ([\#13772](https://github.com/matrix-org/synapse/issues/13772))
- Update URL for the NixOS module for Synapse. ([\#13818](https://github.com/matrix-org/synapse/issues/13818))
- Fix a mistake in sso_mapping_providers.md: `map_user_attributes` is expected to return `display_name`, not `displayname`. ([\#13836](https://github.com/matrix-org/synapse/issues/13836))
- Fix a cross-link from the registration admin API to the `registration_shared_secret` configuration documentation. ([\#13870](https://github.com/matrix-org/synapse/issues/13870))
- Update the man page for the `hash_password` script to correct the default number of bcrypt rounds performed. ([\#13911](https://github.com/matrix-org/synapse/issues/13911), [\#13930](https://github.com/matrix-org/synapse/issues/13930))
- Emphasize the right reasons when to use `(room_id, event_id)` in a database schema. ([\#13915](https://github.com/matrix-org/synapse/issues/13915))
- Add instruction to contributing guide for running unit tests in parallel. Contributed by @ashfame. ([\#13928](https://github.com/matrix-org/synapse/issues/13928))
- Clarify that the `auto_join_rooms` config option can also be used with Space aliases. ([\#13931](https://github.com/matrix-org/synapse/issues/13931))
- Add some cross references to worker documentation. ([\#13974](https://github.com/matrix-org/synapse/issues/13974))
- Linkify urls in config documentation. ([\#14003](https://github.com/matrix-org/synapse/issues/14003))

Deprecations and Removals
-------------------------

- Remove the `complete_sso_login` method from the Module API which was deprecated in Synapse 1.13.0. ([\#13843](https://github.com/matrix-org/synapse/issues/13843))
- Announce that legacy metric names are deprecated, will be turned off by default in Synapse v1.71.0 and removed altogether in Synapse v1.73.0. See the upgrade notes for more information. ([\#14024](https://github.com/matrix-org/synapse/issues/14024))

Internal Changes
----------------

- Speed up creation of DM rooms. ([\#13487](https://github.com/matrix-org/synapse/issues/13487), [\#13800](https://github.com/matrix-org/synapse/issues/13800))
- Port push rules to using Rust. ([\#13768](https://github.com/matrix-org/synapse/issues/13768), [\#13838](https://github.com/matrix-org/synapse/issues/13838), [\#13889](https://github.com/matrix-org/synapse/issues/13889))
- Optimise get rooms for user calls. Contributed by Nick @ Beeper (@fizzadar). ([\#13787](https://github.com/matrix-org/synapse/issues/13787))
- Update the script which makes full schema dumps. ([\#13792](https://github.com/matrix-org/synapse/issues/13792))
- Use shared methods for cache invalidation when persisting events, remove duplicate codepaths. Contributed by Nick @ Beeper (@fizzadar). ([\#13796](https://github.com/matrix-org/synapse/issues/13796))
- Improve the `synapse.api.auth.Auth` mock used in unit tests. ([\#13809](https://github.com/matrix-org/synapse/issues/13809))
- Faster Remote Room Joins: tell remote homeservers that we are unable to authorise them if they query a room which has partial state on our server. ([\#13823](https://github.com/matrix-org/synapse/issues/13823))
- Carry IdP Session IDs through user-mapping sessions. ([\#13839](https://github.com/matrix-org/synapse/issues/13839))
- Fix the release script not publishing binary wheels. ([\#13850](https://github.com/matrix-org/synapse/issues/13850))
- Raise issue if complement fails with latest deps. ([\#13859](https://github.com/matrix-org/synapse/issues/13859))
- Correct the comments in the complement dockerfile. ([\#13867](https://github.com/matrix-org/synapse/issues/13867))
- Create a new snapshot of the database schema. ([\#13873](https://github.com/matrix-org/synapse/issues/13873))
- Faster room joins: Send device list updates to most servers in rooms with partial state. ([\#13874](https://github.com/matrix-org/synapse/issues/13874), [\#14013](https://github.com/matrix-org/synapse/issues/14013))
- Add comments to the Prometheus recording rules to make it clear which set of rules you need for Grafana or Prometheus Console. ([\#13876](https://github.com/matrix-org/synapse/issues/13876))
- Only pull relevant backfill points from the database based on the current depth and limit (instead of all) every time we want to `/backfill`. ([\#13879](https://github.com/matrix-org/synapse/issues/13879))
- Faster room joins: Avoid waiting for full state when processing `/keys/changes` requests. ([\#13888](https://github.com/matrix-org/synapse/issues/13888))
- Improve backfill robustness by trying more servers when we get a `4xx` error back. ([\#13890](https://github.com/matrix-org/synapse/issues/13890))
- Fix mypy errors with canonicaljson 1.6.3. ([\#13905](https://github.com/matrix-org/synapse/issues/13905))
- Faster remote room joins: correctly handle remote device list updates during a partial join. ([\#13913](https://github.com/matrix-org/synapse/issues/13913))
- Complement image: propagate SIGTERM to all workers. ([\#13914](https://github.com/matrix-org/synapse/issues/13914))
- Update an innaccurate comment in Synapse's upsert database helper. ([\#13924](https://github.com/matrix-org/synapse/issues/13924))
- Update mypy (0.950 -> 0.981) and mypy-zope (0.3.7 -> 0.3.11). ([\#13925](https://github.com/matrix-org/synapse/issues/13925), [\#13993](https://github.com/matrix-org/synapse/issues/13993))
- Use dedicated `get_local_users_in_room(room_id)` function to find local users when calculating users to copy over during a room upgrade. ([\#13960](https://github.com/matrix-org/synapse/issues/13960))
- Refactor language in user directory `_track_user_joined_room` code to make it more clear that we use both local and remote users. ([\#13966](https://github.com/matrix-org/synapse/issues/13966))
- Revert catch-all exceptions being recorded as event pull attempt failures (only handle what we know about). ([\#13969](https://github.com/matrix-org/synapse/issues/13969))
- Speed up calculating push actions in large rooms. ([\#13973](https://github.com/matrix-org/synapse/issues/13973), [\#13992](https://github.com/matrix-org/synapse/issues/13992))
- Enable update notifications from Github's dependabot. ([\#13976](https://github.com/matrix-org/synapse/issues/13976))
- Prototype a workflow to automatically add changelogs to dependabot PRs. ([\#13998](https://github.com/matrix-org/synapse/issues/13998), [\#14011](https://github.com/matrix-org/synapse/issues/14011), [\#14017](https://github.com/matrix-org/synapse/issues/14017), [\#14021](https://github.com/matrix-org/synapse/issues/14021), [\#14027](https://github.com/matrix-org/synapse/issues/14027))
- Fix type annotations to be compatible with new annotations in development versions of twisted. ([\#14012](https://github.com/matrix-org/synapse/issues/14012))
- Clear out stale entries in `event_push_actions_staging` table. ([\#14020](https://github.com/matrix-org/synapse/issues/14020))
- Bump versions of GitHub actions. ([\#13978](https://github.com/matrix-org/synapse/issues/13978), [\#13979](https://github.com/matrix-org/synapse/issues/13979), [\#13980](https://github.com/matrix-org/synapse/issues/13980), [\#13982](https://github.com/matrix-org/synapse/issues/13982), [\#14015](https://github.com/matrix-org/synapse/issues/14015), [\#14019](https://github.com/matrix-org/synapse/issues/14019), [\#14022](https://github.com/matrix-org/synapse/issues/14022), [\#14023](https://github.com/matrix-org/synapse/issues/14023))

Synapse 1.70.0rc1 (2022-10-19)
==============================

Features
--------

- Support for [MSC3856](https://github.com/matrix-org/matrix-spec-proposals/pull/3856): threads list API. ([\#13394](https://github.com/matrix-org/synapse/issues/13394), [\#14171](https://github.com/matrix-org/synapse/issues/14171), [\#14175](https://github.com/matrix-org/synapse/issues/14175))
- Support for thread-specific notifications & receipts ([MSC3771](https://github.com/matrix-org/matrix-spec-proposals/pull/3771) and [MSC3773](https://github.com/matrix-org/matrix-spec-proposals/pull/3773)). ([\#13776](https://github.com/matrix-org/synapse/issues/13776), [\#13824](https://github.com/matrix-org/synapse/issues/13824), [\#13877](https://github.com/matrix-org/synapse/issues/13877), [\#13878](https://github.com/matrix-org/synapse/issues/13878), [\#14050](https://github.com/matrix-org/synapse/issues/14050), [\#14140](https://github.com/matrix-org/synapse/issues/14140), [\#14159](https://github.com/matrix-org/synapse/issues/14159), [\#14163](https://github.com/matrix-org/synapse/issues/14163), [\#14174](https://github.com/matrix-org/synapse/issues/14174), [\#14222](https://github.com/matrix-org/synapse/issues/14222))
- Stop fetching missing `prev_events` after we already know their signature is invalid. ([\#13816](https://github.com/matrix-org/synapse/issues/13816))
- Send application service access tokens as a header (and query parameter). Implements [MSC2832](https://github.com/matrix-org/matrix-spec-proposals/pull/2832). ([\#13996](https://github.com/matrix-org/synapse/issues/13996))
- Ignore server ACL changes when generating pushes. Implements [MSC3786](https://github.com/matrix-org/matrix-spec-proposals/pull/3786). ([\#13997](https://github.com/matrix-org/synapse/issues/13997))
- Experimental support for redirecting to an implementation of a [MSC3886](https://github.com/matrix-org/matrix-spec-proposals/pull/3886) HTTP rendezvous service. ([\#14018](https://github.com/matrix-org/synapse/issues/14018))
- The `/relations` endpoint can now be used on workers. ([\#14028](https://github.com/matrix-org/synapse/issues/14028))
- Advertise support for Matrix 1.3 and 1.4 on `/_matrix/client/versions`. ([\#14032](https://github.com/matrix-org/synapse/issues/14032), [\#14184](https://github.com/matrix-org/synapse/issues/14184))
- Improve validation of request bodies for the [Device Management](https://spec.matrix.org/v1.4/client-server-api/#device-management) and [MSC2697 Device Dehyrdation](https://github.com/matrix-org/matrix-spec-proposals/pull/2697) client-server API endpoints. ([\#14054](https://github.com/matrix-org/synapse/issues/14054))
- Experimental support for [MSC3874](https://github.com/matrix-org/matrix-spec-proposals/pull/3874). ([\#14148](https://github.com/matrix-org/synapse/issues/14148))
- Improve the validation of the following PUT endpoints: [`/directory/room/{roomAlias}`](https://spec.matrix.org/v1.4/client-server-api/#put_matrixclientv3directoryroomroomalias), [`/directory/list/room/{roomId}`](https://spec.matrix.org/v1.4/client-server-api/#put_matrixclientv3directorylistroomroomid) and [`/directory/list/appservice/{networkId}/{roomId}`](https://spec.matrix.org/v1.4/application-service-api/#put_matrixclientv3directorylistappservicenetworkidroomid). ([\#14179](https://github.com/matrix-org/synapse/issues/14179))
- Build and publish binary wheels for `aarch64` platforms. ([\#14212](https://github.com/matrix-org/synapse/issues/14212))

Bugfixes
--------

- Prevent device names from appearing in device list updates when `allow_device_name_lookup_over_federation` is `false`. ([\#10015](https://github.com/matrix-org/synapse/issues/10015))
- Fix a long-standing bug where redactions were not being sent over federation if we did not have the original event. ([\#13813](https://github.com/matrix-org/synapse/issues/13813))
- Fix a long-standing bug where edits of non-`m.room.message` events would not be correctly bundled or have their new content applied. ([\#14034](https://github.com/matrix-org/synapse/issues/14034))
- Fix a bug introduced in Synapse 1.53.0 when querying `/publicRooms` with both a `room_type` filter and a `third_party_instance_id`. ([\#14053](https://github.com/matrix-org/synapse/issues/14053))
- Fix a bug introduced in Synapse 1.35.0 where errors parsing a `/send_join` or `/state` response would produce excessive, low-quality Sentry events. ([\#14065](https://github.com/matrix-org/synapse/issues/14065))
- Fix a long-standing bug where Synapse would error on the optional 'invite_room_state' field not being provided to [`PUT /_matrix/federation/v2/invite/{roomId}/{eventId}`](https://spec.matrix.org/v1.4/server-server-api/#put_matrixfederationv2inviteroomideventid). ([\#14083](https://github.com/matrix-org/synapse/issues/14083))
- Fix a bug where invalid oEmbed fields would cause the entire response to be discarded. Introduced in Synapse 1.18.0. ([\#14089](https://github.com/matrix-org/synapse/issues/14089))
- Fix a bug introduced in Synapse 1.37.0 in which an incorrect key name was used for sending and receiving room metadata when knocking on a room. ([\#14102](https://github.com/matrix-org/synapse/issues/14102))
- Fix a bug introduced in v1.69.0rc1 where the joined hosts for a given event were not being properly cached. ([\#14125](https://github.com/matrix-org/synapse/issues/14125))
- Fix a bug introduced in Synapse 1.30.0 where purging and rejoining a room without restarting in-between would result in a broken room. ([\#14161](https://github.com/matrix-org/synapse/issues/14161), [\#14164](https://github.com/matrix-org/synapse/issues/14164))
- Fix [MSC3030](https://github.com/matrix-org/matrix-spec-proposals/pull/3030) `/timestamp_to_event` endpoint returning potentially inaccurate closest events with `outliers` present. ([\#14215](https://github.com/matrix-org/synapse/issues/14215))

Updates to the Docker image
---------------------------

- Update the version of frozendict in Docker images and Debian packages from 2.3.3 to 2.3.4, which may fix memory leak problems. ([\#13955](https://github.com/matrix-org/synapse/issues/13955))
- Use the `minimal` Rust profile when building Synapse. ([\#14141](https://github.com/matrix-org/synapse/issues/14141))
- Prevent a class of database sharding errors when using `Dockerfile-workers` to spawn multiple instances of the same worker. Contributed by Jason Little. ([\#14165](https://github.com/matrix-org/synapse/issues/14165))
- Set `LD_PRELOAD` to use jemalloc memory allocator in Dockerfile-workers. ([\#14182](https://github.com/matrix-org/synapse/issues/14182))
- Fix pre-startup logging being lost when using the `Dockerfile-workers` image. ([\#14195](https://github.com/matrix-org/synapse/issues/14195))

Improved Documentation
----------------------

- Add sample worker files for `pusher` and `federation_sender`. ([\#14077](https://github.com/matrix-org/synapse/issues/14077))
- Improve the listener example on the metrics documentation. ([\#14078](https://github.com/matrix-org/synapse/issues/14078))
- Expand Google OpenID Connect example config to map email attribute. Contributed by @ptman. ([\#14081](https://github.com/matrix-org/synapse/issues/14081))
- The changelog entry ending in a full stop or exclamation mark is not optional. ([\#14087](https://github.com/matrix-org/synapse/issues/14087))
- Fix links to jemalloc documentation, which were broken in [#13491](https://github.com/matrix-org/synapse/pull/14124). ([\#14093](https://github.com/matrix-org/synapse/issues/14093))
- Remove not needed `replication` listener in docker compose example. ([\#14107](https://github.com/matrix-org/synapse/issues/14107))
- Fix name of `alias_creation_rules` option in the config manual documentation. ([\#14124](https://github.com/matrix-org/synapse/issues/14124))
- Clarify comment on event contexts. ([\#14145](https://github.com/matrix-org/synapse/issues/14145))
- Fix dead link to the [Admin Registration API](https://matrix-org.github.io/synapse/latest/admin_api/register_api.html). ([\#14189](https://github.com/matrix-org/synapse/issues/14189))

Deprecations and Removals
-------------------------

- Remove the experimental implementation of [MSC3772](https://github.com/matrix-org/matrix-spec-proposals/pull/3772). ([\#14094](https://github.com/matrix-org/synapse/issues/14094))
- Remove the unstable identifier for [MSC3715](https://github.com/matrix-org/matrix-doc/pull/3715). ([\#14106](https://github.com/matrix-org/synapse/issues/14106), [\#14146](https://github.com/matrix-org/synapse/issues/14146))

Internal Changes
----------------

- Optimise queries used to get a users rooms during sync. Contributed by Nick @ Beeper (@fizzadar). ([\#13991](https://github.com/matrix-org/synapse/issues/13991))
- Update authlib from 0.15.5 to 1.1.0. ([\#14006](https://github.com/matrix-org/synapse/issues/14006))
- Make `parse_server_name` consistent in handling invalid server names. ([\#14007](https://github.com/matrix-org/synapse/issues/14007))
- Don't repeatedly wake up the same users for batched events. ([\#14033](https://github.com/matrix-org/synapse/issues/14033))
- Complement test image: capture logs from nginx. ([\#14063](https://github.com/matrix-org/synapse/issues/14063))
- Don't create noisy Sentry events when a requester drops connection to the metrics server mid-request. ([\#14072](https://github.com/matrix-org/synapse/issues/14072))
- Run the integration test suites with the asyncio reactor enabled in CI. ([\#14092](https://github.com/matrix-org/synapse/issues/14092))
- Add debug logs to figure out why an event was filtered out of the client response. ([\#14095](https://github.com/matrix-org/synapse/issues/14095))
- Indicate what endpoint came back with a JSON response we were unable to parse. ([\#14097](https://github.com/matrix-org/synapse/issues/14097))
- Break up calls to fetch rooms for many users. Contributed by Nick @ Beeper (@fizzadar). ([\#14109](https://github.com/matrix-org/synapse/issues/14109))
- Faster joins: prioritise the server we joined by when restarting a partial join resync. ([\#14126](https://github.com/matrix-org/synapse/issues/14126))
- Cache Rust build cache when building docker images. ([\#14130](https://github.com/matrix-org/synapse/issues/14130))
- Enable dependabot for Rust dependencies. ([\#14132](https://github.com/matrix-org/synapse/issues/14132))
- Bump typing-extensions from 4.1.1 to 4.4.0. ([\#14134](https://github.com/matrix-org/synapse/issues/14134))
- Use the `minimal` Rust profile when building Synapse. ([\#14141](https://github.com/matrix-org/synapse/issues/14141))
- Remove unused configuration code. ([\#14142](https://github.com/matrix-org/synapse/issues/14142))
- Prepare for the [`gotestfmt` repository move](https://github.com/GoTestTools/gotestfmt/discussions/46). ([\#14144](https://github.com/matrix-org/synapse/issues/14144))
- Invalidate rooms for user caches on replicated event, fix sync cache race in synapse workers. Contributed by Nick @ Beeper (@fizzadar). ([\#14155](https://github.com/matrix-org/synapse/issues/14155))
- Enable url previews when testing with complement. ([\#14198](https://github.com/matrix-org/synapse/issues/14198))
- When authenticating batched events, check for auth events in batch as well as DB. ([\#14214](https://github.com/matrix-org/synapse/issues/14214))
- Update CI config to avoid GitHub Actions deprecation warnings. ([\#14216](https://github.com/matrix-org/synapse/issues/14216), [\#14224](https://github.com/matrix-org/synapse/issues/14224))
- Update dependency requirements to allow building with poetry-core 1.3.2. ([\#14217](https://github.com/matrix-org/synapse/issues/14217))
- Rename the `cache_memory` extra to `cache-memory`, for compatability with poetry-core 1.3.0 and [PEP 685](https://peps.python.org/pep-0685/). From-source installations using this extra will need to install using the new name. ([\#14221](https://github.com/matrix-org/synapse/issues/14221))
- Specify dev-dependencies using lower bounds, to reduce the likelihood of a dependabot merge conflict. The lockfile continues to pin to specific versions. ([\#14227](https://github.com/matrix-org/synapse/issues/14227))

Synapse 1.70.0rc2 (2022-10-25)
==============================

Bugfixes
--------

- Fix a bug introduced in Synapse 1.70.0rc1 where the information returned from the `/threads` API could be stale when threaded events are redacted. ([\#14248](https://github.com/matrix-org/synapse/issues/14248))
- Fix a bug introduced in Synapse 1.70.0rc1 leading to broken outbound federation when using Python 3.7. ([\#14280](https://github.com/matrix-org/synapse/issues/14280))
- Fix a bug introduced in Synapse 1.70.0rc1 where edits to non-message events were aggregated by the homeserver. ([\#14283](https://github.com/matrix-org/synapse/issues/14283))

Internal Changes
----------------

- Build ABI3 wheels for CPython. ([\#14253](https://github.com/matrix-org/synapse/issues/14253))
- For the aarch64 architecture, only build wheels for CPython manylinux. ([\#14259](https://github.com/matrix-org/synapse/issues/14259))

Synapse 1.70.0 (2022-10-26)
===========================

No significant changes since 1.70.0rc2.

Synapse 1.70.0rc2 (2022-10-25)
==============================

Bugfixes
--------

- Fix a bug introduced in Synapse 1.70.0rc1 where the information returned from the `/threads` API could be stale when threaded events are redacted. ([\#14248](https://github.com/matrix-org/synapse/issues/14248))
- Fix a bug introduced in Synapse 1.70.0rc1 leading to broken outbound federation when using Python 3.7. ([\#14280](https://github.com/matrix-org/synapse/issues/14280))
- Fix a bug introduced in Synapse 1.70.0rc1 where edits to non-message events were aggregated by the homeserver. ([\#14283](https://github.com/matrix-org/synapse/issues/14283))

Internal Changes
----------------

- Build ABI3 wheels for CPython. ([\#14253](https://github.com/matrix-org/synapse/issues/14253))
- For the aarch64 architecture, only build wheels for CPython manylinux. ([\#14259](https://github.com/matrix-org/synapse/issues/14259))

Synapse 1.70.0rc1 (2022-10-19)
==============================

Features
--------

- Support for [MSC3856](https://github.com/matrix-org/matrix-spec-proposals/pull/3856): threads list API. ([\#13394](https://github.com/matrix-org/synapse/issues/13394), [\#14171](https://github.com/matrix-org/synapse/issues/14171), [\#14175](https://github.com/matrix-org/synapse/issues/14175))
- Support for thread-specific notifications & receipts ([MSC3771](https://github.com/matrix-org/matrix-spec-proposals/pull/3771) and [MSC3773](https://github.com/matrix-org/matrix-spec-proposals/pull/3773)). ([\#13776](https://github.com/matrix-org/synapse/issues/13776), [\#13824](https://github.com/matrix-org/synapse/issues/13824), [\#13877](https://github.com/matrix-org/synapse/issues/13877), [\#13878](https://github.com/matrix-org/synapse/issues/13878), [\#14050](https://github.com/matrix-org/synapse/issues/14050), [\#14140](https://github.com/matrix-org/synapse/issues/14140), [\#14159](https://github.com/matrix-org/synapse/issues/14159), [\#14163](https://github.com/matrix-org/synapse/issues/14163), [\#14174](https://github.com/matrix-org/synapse/issues/14174), [\#14222](https://github.com/matrix-org/synapse/issues/14222))
- Stop fetching missing `prev_events` after we already know their signature is invalid. ([\#13816](https://github.com/matrix-org/synapse/issues/13816))
- Send application service access tokens as a header (and query parameter). Implements [MSC2832](https://github.com/matrix-org/matrix-spec-proposals/pull/2832). ([\#13996](https://github.com/matrix-org/synapse/issues/13996))
- Ignore server ACL changes when generating pushes. Implements [MSC3786](https://github.com/matrix-org/matrix-spec-proposals/pull/3786). ([\#13997](https://github.com/matrix-org/synapse/issues/13997))
- Experimental support for redirecting to an implementation of a [MSC3886](https://github.com/matrix-org/matrix-spec-proposals/pull/3886) HTTP rendezvous service. ([\#14018](https://github.com/matrix-org/synapse/issues/14018))
- The `/relations` endpoint can now be used on workers. ([\#14028](https://github.com/matrix-org/synapse/issues/14028))
- Advertise support for Matrix 1.3 and 1.4 on `/_matrix/client/versions`. ([\#14032](https://github.com/matrix-org/synapse/issues/14032), [\#14184](https://github.com/matrix-org/synapse/issues/14184))
- Improve validation of request bodies for the [Device Management](https://spec.matrix.org/v1.4/client-server-api/#device-management) and [MSC2697 Device Dehyrdation](https://github.com/matrix-org/matrix-spec-proposals/pull/2697) client-server API endpoints. ([\#14054](https://github.com/matrix-org/synapse/issues/14054))
- Experimental support for [MSC3874](https://github.com/matrix-org/matrix-spec-proposals/pull/3874): Filtering threads from the `/messages` endpoint. ([\#14148](https://github.com/matrix-org/synapse/issues/14148))
- Improve the validation of the following PUT endpoints: [`/directory/room/{roomAlias}`](https://spec.matrix.org/v1.4/client-server-api/#put_matrixclientv3directoryroomroomalias), [`/directory/list/room/{roomId}`](https://spec.matrix.org/v1.4/client-server-api/#put_matrixclientv3directorylistroomroomid) and [`/directory/list/appservice/{networkId}/{roomId}`](https://spec.matrix.org/v1.4/application-service-api/#put_matrixclientv3directorylistappservicenetworkidroomid). ([\#14179](https://github.com/matrix-org/synapse/issues/14179))
- Build and publish binary wheels for `aarch64` platforms. ([\#14212](https://github.com/matrix-org/synapse/issues/14212))

Bugfixes
--------

- Prevent device names from appearing in device list updates in some situations when `allow_device_name_lookup_over_federation` is `false`. (This is not comprehensive: see [\#13114](https://github.com/matrix-org/synapse/issues/13114).) ([\#10015](https://github.com/matrix-org/synapse/issues/10015))
- Fix a long-standing bug where redactions were not being sent over federation if we did not have the original event. ([\#13813](https://github.com/matrix-org/synapse/issues/13813))
- Fix a long-standing bug where edits of non-`m.room.message` events would not be correctly bundled or have their new content applied. ([\#14034](https://github.com/matrix-org/synapse/issues/14034))
- Fix a bug introduced in Synapse 1.53.0 when querying `/publicRooms` with both a `room_type` filter and a `third_party_instance_id`. ([\#14053](https://github.com/matrix-org/synapse/issues/14053))
- Fix a bug introduced in Synapse 1.35.0 where errors parsing a `/send_join` or `/state` response would produce excessive, low-quality Sentry events. ([\#14065](https://github.com/matrix-org/synapse/issues/14065))
- Fix a long-standing bug where Synapse would error on the optional 'invite_room_state' field not being provided to [`PUT /_matrix/federation/v2/invite/{roomId}/{eventId}`](https://spec.matrix.org/v1.4/server-server-api/#put_matrixfederationv2inviteroomideventid). ([\#14083](https://github.com/matrix-org/synapse/issues/14083))
- Fix a bug where invalid oEmbed fields would cause the entire response to be discarded. Introduced in Synapse 1.18.0. ([\#14089](https://github.com/matrix-org/synapse/issues/14089))
- Fix a bug introduced in Synapse 1.37.0 in which an incorrect key name was used for sending and receiving room metadata when knocking on a room. ([\#14102](https://github.com/matrix-org/synapse/issues/14102))
- Fix a bug introduced in v1.69.0rc1 where the joined hosts for a given event were not being properly cached. ([\#14125](https://github.com/matrix-org/synapse/issues/14125))
- Fix a bug introduced in Synapse 1.30.0 where purging and rejoining a room without restarting in-between would result in a broken room. ([\#14161](https://github.com/matrix-org/synapse/issues/14161), [\#14164](https://github.com/matrix-org/synapse/issues/14164))
- Fix [MSC3030](https://github.com/matrix-org/matrix-spec-proposals/pull/3030) `/timestamp_to_event` endpoint returning potentially inaccurate closest events with `outliers` present. ([\#14215](https://github.com/matrix-org/synapse/issues/14215))

Updates to the Docker image
---------------------------

- Update the version of frozendict in Docker images and Debian packages from 2.3.3 to 2.3.4, which may fix memory leak problems. ([\#13955](https://github.com/matrix-org/synapse/issues/13955))
- Use the `minimal` Rust profile when building Synapse. ([\#14141](https://github.com/matrix-org/synapse/issues/14141))
- Prevent a class of database sharding errors when using `Dockerfile-workers` to spawn multiple instances of the same worker. Contributed by Jason Little. ([\#14165](https://github.com/matrix-org/synapse/issues/14165))
- Set `LD_PRELOAD` to use jemalloc memory allocator in Dockerfile-workers. ([\#14182](https://github.com/matrix-org/synapse/issues/14182))
- Fix pre-startup logging being lost when using the `Dockerfile-workers` image. ([\#14195](https://github.com/matrix-org/synapse/issues/14195))

Improved Documentation
----------------------

- Add sample worker files for `pusher` and `federation_sender`. ([\#14077](https://github.com/matrix-org/synapse/issues/14077))
- Improve the listener example on the metrics documentation. ([\#14078](https://github.com/matrix-org/synapse/issues/14078))
- Expand Google OpenID Connect example config to map email attribute. Contributed by @ptman. ([\#14081](https://github.com/matrix-org/synapse/issues/14081))
- The changelog entry ending in a full stop or exclamation mark is not optional. ([\#14087](https://github.com/matrix-org/synapse/issues/14087))
- Fix links to jemalloc documentation, which were broken in [#13491](https://github.com/matrix-org/synapse/pull/14124). ([\#14093](https://github.com/matrix-org/synapse/issues/14093))
- Remove not needed `replication` listener in docker compose example. ([\#14107](https://github.com/matrix-org/synapse/issues/14107))
- Fix name of `alias_creation_rules` option in the config manual documentation. ([\#14124](https://github.com/matrix-org/synapse/issues/14124))
- Clarify comment on event contexts. ([\#14145](https://github.com/matrix-org/synapse/issues/14145))
- Fix dead link to the [Admin Registration API](https://matrix-org.github.io/synapse/latest/admin_api/register_api.html). ([\#14189](https://github.com/matrix-org/synapse/issues/14189))

Deprecations and Removals
-------------------------

- Remove the experimental implementation of [MSC3772](https://github.com/matrix-org/matrix-spec-proposals/pull/3772). ([\#14094](https://github.com/matrix-org/synapse/issues/14094))
- Remove the unstable identifier for [MSC3715](https://github.com/matrix-org/matrix-doc/pull/3715). ([\#14106](https://github.com/matrix-org/synapse/issues/14106), [\#14146](https://github.com/matrix-org/synapse/issues/14146))

Internal Changes
----------------

- Optimise queries used to get a users rooms during sync. Contributed by Nick @ Beeper (@fizzadar). ([\#13991](https://github.com/matrix-org/synapse/issues/13991))
- Update authlib from 0.15.5 to 1.1.0. ([\#14006](https://github.com/matrix-org/synapse/issues/14006))
- Make `parse_server_name` consistent in handling invalid server names. ([\#14007](https://github.com/matrix-org/synapse/issues/14007))
- Don't repeatedly wake up the same users for batched events. ([\#14033](https://github.com/matrix-org/synapse/issues/14033))
- Complement test image: capture logs from nginx. ([\#14063](https://github.com/matrix-org/synapse/issues/14063))
- Don't create noisy Sentry events when a requester drops connection to the metrics server mid-request. ([\#14072](https://github.com/matrix-org/synapse/issues/14072))
- Run the integration test suites with the asyncio reactor enabled in CI. ([\#14092](https://github.com/matrix-org/synapse/issues/14092))
- Add debug logs to figure out why an event was filtered out of the client response. ([\#14095](https://github.com/matrix-org/synapse/issues/14095))
- Indicate what endpoint came back with a JSON response we were unable to parse. ([\#14097](https://github.com/matrix-org/synapse/issues/14097))
- Break up calls to fetch rooms for many users. Contributed by Nick @ Beeper (@fizzadar). ([\#14109](https://github.com/matrix-org/synapse/issues/14109))
- Faster joins: prioritise the server we joined by when restarting a partial join resync. ([\#14126](https://github.com/matrix-org/synapse/issues/14126))
- Cache Rust build cache when building docker images. ([\#14130](https://github.com/matrix-org/synapse/issues/14130))
- Enable dependabot for Rust dependencies. ([\#14132](https://github.com/matrix-org/synapse/issues/14132))
- Bump typing-extensions from 4.1.1 to 4.4.0. ([\#14134](https://github.com/matrix-org/synapse/issues/14134))
- Use the `minimal` Rust profile when building Synapse. ([\#14141](https://github.com/matrix-org/synapse/issues/14141))
- Remove unused configuration code. ([\#14142](https://github.com/matrix-org/synapse/issues/14142))
- Prepare for the [`gotestfmt` repository move](https://github.com/GoTestTools/gotestfmt/discussions/46). ([\#14144](https://github.com/matrix-org/synapse/issues/14144))
- Invalidate rooms for user caches on replicated event, fix sync cache race in synapse workers. Contributed by Nick @ Beeper (@fizzadar). ([\#14155](https://github.com/matrix-org/synapse/issues/14155))
- Enable url previews when testing with complement. ([\#14198](https://github.com/matrix-org/synapse/issues/14198))
- When authenticating batched events, check for auth events in batch as well as DB. ([\#14214](https://github.com/matrix-org/synapse/issues/14214))
- Update CI config to avoid GitHub Actions deprecation warnings. ([\#14216](https://github.com/matrix-org/synapse/issues/14216), [\#14224](https://github.com/matrix-org/synapse/issues/14224))
- Update dependency requirements to allow building with poetry-core 1.3.2. ([\#14217](https://github.com/matrix-org/synapse/issues/14217))
- Rename the `cache_memory` extra to `cache-memory`, for compatability with poetry-core 1.3.0 and [PEP 685](https://peps.python.org/pep-0685/). From-source installations using this extra will need to install using the new name. ([\#14221](https://github.com/matrix-org/synapse/issues/14221))
- Specify dev-dependencies using lower bounds, to reduce the likelihood of a dependabot merge conflict. The lockfile continues to pin to specific versions. ([\#14227](https://github.com/matrix-org/synapse/issues/14227))

Synapse 1.70.1 (2022-10-28)
===========================

Bugfixes
--------

- Fix a bug introduced in Synapse 1.70.0rc1 where the access tokens sent to application services as headers were malformed. Application services which were obtaining access tokens from query parameters were not affected. ([\#14301](https://github.com/matrix-org/synapse/issues/14301))
- Fix room creation being rate limited too aggressively since Synapse v1.69.0. ([\#14314](https://github.com/matrix-org/synapse/issues/14314))

Synapse 1.71.0rc1 (2022-11-01)
==============================

Features
--------

- Support back-channel logouts from OpenID Connect providers. ([\#11414](https://github.com/matrix-org/synapse/issues/11414))
- Allow use of Postgres and SQLlite full-text search operators in search queries. ([\#11635](https://github.com/matrix-org/synapse/issues/11635), [\#14310](https://github.com/matrix-org/synapse/issues/14310), [\#14311](https://github.com/matrix-org/synapse/issues/14311))
- Implement [MSC3664](https://github.com/matrix-org/matrix-doc/pull/3664), Pushrules for relations. Contributed by Nico. ([\#11804](https://github.com/matrix-org/synapse/issues/11804))
- Improve aesthetics of HTML templates. Note that these changes do not retroactively apply to templates which have been [customised](https://matrix-org.github.io/synapse/latest/templates.html#templates) by server admins. ([\#13652](https://github.com/matrix-org/synapse/issues/13652))
- Enable write-ahead logging for SQLite installations. Contributed by [@asymmetric](https://github.com/asymmetric). ([\#13897](https://github.com/matrix-org/synapse/issues/13897))
- Show erasure status when [listing users](https://matrix-org.github.io/synapse/latest/admin_api/user_admin_api.html#query-user-account) in the Admin API. ([\#14205](https://github.com/matrix-org/synapse/issues/14205))
- Provide a specific error code when a `/sync` request provides a filter which doesn't represent a JSON object. ([\#14262](https://github.com/matrix-org/synapse/issues/14262))

Bugfixes
--------

- Fix a long-standing bug where the `update_synapse_database` script could not be run with multiple databases. Contributed by @thefinn93 @ Beeper. ([\#13422](https://github.com/matrix-org/synapse/issues/13422))
- Fix a bug which prevented setting an avatar on homeservers which have an explicit port in their `server_name` and have `max_avatar_size` and/or `allowed_avatar_mimetypes` configuration. Contributed by @ashfame. ([\#13927](https://github.com/matrix-org/synapse/issues/13927))
- Check appservice user interest against the local users instead of all users in the room to align with [MSC3905](https://github.com/matrix-org/matrix-spec-proposals/pull/3905). ([\#13958](https://github.com/matrix-org/synapse/issues/13958))
- Fix a long-standing bug where Synapse would accidentally include extra information in the response to [`PUT /_matrix/federation/v2/invite/{roomId}/{eventId}`](https://spec.matrix.org/v1.4/server-server-api/#put_matrixfederationv2inviteroomideventid). ([\#14064](https://github.com/matrix-org/synapse/issues/14064))
- Fix a bug introduced in Synapse 1.64.0 where presence updates could be missing from `/sync` responses. ([\#14243](https://github.com/matrix-org/synapse/issues/14243))
- Fix a bug introduced in Synapse 1.60.0 which caused an error to be logged when Synapse received a SIGHUP signal if debug logging was enabled. ([\#14258](https://github.com/matrix-org/synapse/issues/14258))
- Prevent history insertion ([MSC2716](https://github.com/matrix-org/matrix-spec-proposals/pull/2716)) during an partial join ([MSC3706](https://github.com/matrix-org/matrix-spec-proposals/pull/3706)). ([\#14291](https://github.com/matrix-org/synapse/issues/14291))
- Fix a bug introduced in Synapse 1.34.0 where device names would be returned via a federation user key query request when `allow_device_name_lookup_over_federation` was set to `false`. ([\#14304](https://github.com/matrix-org/synapse/issues/14304))
- Fix a bug introduced in Synapse 0.34.0 where logs could include error spam when background processes are measured as taking a negative amount of time. ([\#14323](https://github.com/matrix-org/synapse/issues/14323))
- Fix a bug introduced in Synapse 1.70.0 where clients were unable to PUT new [dehydrated devices](https://github.com/matrix-org/matrix-spec-proposals/pull/2697). ([\#14336](https://github.com/matrix-org/synapse/issues/14336))

Improved Documentation
----------------------

- Explain how to disable the use of [`trusted_key_servers`](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#trusted_key_servers). ([\#13999](https://github.com/matrix-org/synapse/issues/13999))
- Add workers settings to [configuration manual](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#individual-worker-configuration). ([\#14086](https://github.com/matrix-org/synapse/issues/14086))
- Correct the name of the config option [`encryption_enabled_by_default_for_room_type`](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#encryption_enabled_by_default_for_room_type). ([\#14110](https://github.com/matrix-org/synapse/issues/14110))
- Update docstrings of `SynapseError` and `FederationError` to bettter describe what they are used for and the effects of using them are. ([\#14191](https://github.com/matrix-org/synapse/issues/14191))

Internal Changes
----------------

- Remove unused `@lru_cache` decorator. ([\#13595](https://github.com/matrix-org/synapse/issues/13595))
- Save login tokens in database and prevent login token reuse. ([\#13844](https://github.com/matrix-org/synapse/issues/13844))
- Refactor OIDC tests to better mimic an actual OIDC provider. ([\#13910](https://github.com/matrix-org/synapse/issues/13910))
- Fix type annotation causing import time error in the Complement forking launcher. ([\#14084](https://github.com/matrix-org/synapse/issues/14084))
- Refactor [MSC3030](https://github.com/matrix-org/matrix-spec-proposals/pull/3030) `/timestamp_to_event` endpoint to loop over federation destinations with standard pattern and error handling. ([\#14096](https://github.com/matrix-org/synapse/issues/14096))
- Add initial power level event to batch of bulk persisted events when creating a new room. ([\#14228](https://github.com/matrix-org/synapse/issues/14228))
- Refactor `/key/` endpoints to use `RestServlet` classes. ([\#14229](https://github.com/matrix-org/synapse/issues/14229))
- Switch to using the `matrix-org/backend-meta` version of `triage-incoming` for new issues in CI. ([\#14230](https://github.com/matrix-org/synapse/issues/14230))
- Build wheels on macos 11, not 10.15. ([\#14249](https://github.com/matrix-org/synapse/issues/14249))
- Add debugging to help diagnose lost device list updates. ([\#14268](https://github.com/matrix-org/synapse/issues/14268))
- Add Rust cache to CI for `trial` runs. ([\#14287](https://github.com/matrix-org/synapse/issues/14287))
- Improve type hinting of `RawHeaders`. ([\#14303](https://github.com/matrix-org/synapse/issues/14303))
- Use Poetry 1.2.0 in the Twisted Trunk CI job. ([\#14305](https://github.com/matrix-org/synapse/issues/14305))

<details>
<summary>Dependency updates</summary>

Runtime:

- Bump anyhow from 1.0.65 to 1.0.66. ([\#14278](https://github.com/matrix-org/synapse/issues/14278))
- Bump jinja2 from 3.0.3 to 3.1.2. ([\#14271](https://github.com/matrix-org/synapse/issues/14271))
- Bump prometheus-client from 0.14.0 to 0.15.0. ([\#14274](https://github.com/matrix-org/synapse/issues/14274))
- Bump psycopg2 from 2.9.4 to 2.9.5. ([\#14331](https://github.com/matrix-org/synapse/issues/14331))
- Bump pysaml2 from 7.1.2 to 7.2.1. ([\#14270](https://github.com/matrix-org/synapse/issues/14270))
- Bump sentry-sdk from 1.5.11 to 1.10.1. ([\#14330](https://github.com/matrix-org/synapse/issues/14330))
- Bump serde from 1.0.145 to 1.0.147. ([\#14277](https://github.com/matrix-org/synapse/issues/14277))
- Bump serde_json from 1.0.86 to 1.0.87. ([\#14279](https://github.com/matrix-org/synapse/issues/14279))

Tooling and CI:

- Bump black from 22.3.0 to 22.10.0. ([\#14328](https://github.com/matrix-org/synapse/issues/14328))
- Bump flake8-bugbear from 21.3.2 to 22.9.23. ([\#14042](https://github.com/matrix-org/synapse/issues/14042))
- Bump peaceiris/actions-gh-pages from 3.8.0 to 3.9.0. ([\#14276](https://github.com/matrix-org/synapse/issues/14276))
- Bump peaceiris/actions-mdbook from 1.1.14 to 1.2.0. ([\#14275](https://github.com/matrix-org/synapse/issues/14275))
- Bump setuptools-rust from 1.5.1 to 1.5.2. ([\#14273](https://github.com/matrix-org/synapse/issues/14273))
- Bump twine from 3.8.0 to 4.0.1. ([\#14332](https://github.com/matrix-org/synapse/issues/14332))
- Bump types-opentracing from 2.4.7 to 2.4.10. ([\#14133](https://github.com/matrix-org/synapse/issues/14133))
- Bump types-requests from 2.28.11 to 2.28.11.2. ([\#14272](https://github.com/matrix-org/synapse/issues/14272))
</details>

Synapse 1.71.0rc2 (2022-11-04)
==============================

Please note that, as announced in the release notes for Synapse 1.69.0, legacy Prometheus metric names are now disabled by default.
They will be removed altogether in Synapse 1.73.0.
If not already done, server administrators should update their dashboards and alerting rules to avoid using the deprecated metric names.
See the [upgrade notes](https://matrix-org.github.io/synapse/v1.71/upgrade.html#upgrading-to-v1710) for more details.

Improved Documentation
----------------------

- Document the changes to monthly active user metrics due to deprecation of legacy Prometheus metric names. ([\#14358](https://github.com/matrix-org/synapse/issues/14358), [\#14360](https://github.com/matrix-org/synapse/issues/14360))

Deprecations and Removals
-------------------------

- Disable legacy Prometheus metric names by default. They can still be re-enabled for now, but they will be removed altogether in Synapse 1.73.0. ([\#14353](https://github.com/matrix-org/synapse/issues/14353))

Internal Changes
----------------

- Run unit tests against Python 3.11. ([\#13812](https://github.com/matrix-org/synapse/issues/13812))

Synapse 1.71.0 (2022-11-08)
===========================

Please note that, as announced in the release notes for Synapse 1.69.0, legacy Prometheus metric names are now disabled by default.
They will be removed altogether in Synapse 1.73.0.
If not already done, server administrators should update their dashboards and alerting rules to avoid using the deprecated metric names.
See the [upgrade notes](https://matrix-org.github.io/synapse/v1.71/upgrade.html#upgrading-to-v1710) for more details.

**Note:** in line with our [deprecation policy](https://matrix-org.github.io/synapse/latest/deprecation_policy.html) for platform dependencies, this will be the last release to support PostgreSQL 10, which reaches upstream end-of-life on November 10th, 2022. Future releases of Synapse will require PostgreSQL 11+.

No significant changes since 1.71.0rc2.

Synapse 1.71.0rc2 (2022-11-04)
==============================

Improved Documentation
----------------------

- Document the changes to monthly active user metrics due to deprecation of legacy Prometheus metric names. ([\#14358](https://github.com/matrix-org/synapse/issues/14358), [\#14360](https://github.com/matrix-org/synapse/issues/14360))

Deprecations and Removals
-------------------------

- Disable legacy Prometheus metric names by default. They can still be re-enabled for now, but they will be removed altogether in Synapse 1.73.0. ([\#14353](https://github.com/matrix-org/synapse/issues/14353))

Internal Changes
----------------

- Run unit tests against Python 3.11. ([\#13812](https://github.com/matrix-org/synapse/issues/13812))

Synapse 1.71.0rc1 (2022-11-01)
==============================

Features
--------

- Support back-channel logouts from OpenID Connect providers. ([\#11414](https://github.com/matrix-org/synapse/issues/11414))
- Allow use of Postgres and SQLlite full-text search operators in search queries. ([\#11635](https://github.com/matrix-org/synapse/issues/11635), [\#14310](https://github.com/matrix-org/synapse/issues/14310), [\#14311](https://github.com/matrix-org/synapse/issues/14311))
- Implement [MSC3664](https://github.com/matrix-org/matrix-doc/pull/3664), Pushrules for relations. Contributed by Nico. ([\#11804](https://github.com/matrix-org/synapse/issues/11804))
- Improve aesthetics of HTML templates. Note that these changes do not retroactively apply to templates which have been [customised](https://matrix-org.github.io/synapse/latest/templates.html#templates) by server admins. ([\#13652](https://github.com/matrix-org/synapse/issues/13652))
- Enable write-ahead logging for SQLite installations. Contributed by [@asymmetric](https://github.com/asymmetric). ([\#13897](https://github.com/matrix-org/synapse/issues/13897))
- Show erasure status when [listing users](https://matrix-org.github.io/synapse/latest/admin_api/user_admin_api.html#query-user-account) in the Admin API. ([\#14205](https://github.com/matrix-org/synapse/issues/14205))
- Provide a specific error code when a `/sync` request provides a filter which doesn't represent a JSON object. ([\#14262](https://github.com/matrix-org/synapse/issues/14262))

Bugfixes
--------

- Fix a long-standing bug where the `update_synapse_database` script could not be run with multiple databases. Contributed by @thefinn93 @ Beeper. ([\#13422](https://github.com/matrix-org/synapse/issues/13422))
- Fix a bug which prevented setting an avatar on homeservers which have an explicit port in their `server_name` and have `max_avatar_size` and/or `allowed_avatar_mimetypes` configuration. Contributed by @ashfame. ([\#13927](https://github.com/matrix-org/synapse/issues/13927))
- Check appservice user interest against the local users instead of all users in the room to align with [MSC3905](https://github.com/matrix-org/matrix-spec-proposals/pull/3905). ([\#13958](https://github.com/matrix-org/synapse/issues/13958))
- Fix a long-standing bug where Synapse would accidentally include extra information in the response to [`PUT /_matrix/federation/v2/invite/{roomId}/{eventId}`](https://spec.matrix.org/v1.4/server-server-api/#put_matrixfederationv2inviteroomideventid). ([\#14064](https://github.com/matrix-org/synapse/issues/14064))
- Fix a bug introduced in Synapse 1.64.0 where presence updates could be missing from `/sync` responses. ([\#14243](https://github.com/matrix-org/synapse/issues/14243))
- Fix a bug introduced in Synapse 1.60.0 which caused an error to be logged when Synapse received a SIGHUP signal if debug logging was enabled. ([\#14258](https://github.com/matrix-org/synapse/issues/14258))
- Prevent history insertion ([MSC2716](https://github.com/matrix-org/matrix-spec-proposals/pull/2716)) during an partial join ([MSC3706](https://github.com/matrix-org/matrix-spec-proposals/pull/3706)). ([\#14291](https://github.com/matrix-org/synapse/issues/14291))
- Fix a bug introduced in Synapse 1.34.0 where device names would be returned via a federation user key query request when `allow_device_name_lookup_over_federation` was set to `false`. ([\#14304](https://github.com/matrix-org/synapse/issues/14304))
- Fix a bug introduced in Synapse 0.34.0 where logs could include error spam when background processes are measured as taking a negative amount of time. ([\#14323](https://github.com/matrix-org/synapse/issues/14323))
- Fix a bug introduced in Synapse 1.70.0 where clients were unable to PUT new [dehydrated devices](https://github.com/matrix-org/matrix-spec-proposals/pull/2697). ([\#14336](https://github.com/matrix-org/synapse/issues/14336))

Improved Documentation
----------------------

- Explain how to disable the use of [`trusted_key_servers`](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#trusted_key_servers). ([\#13999](https://github.com/matrix-org/synapse/issues/13999))
- Add workers settings to [configuration manual](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#individual-worker-configuration). ([\#14086](https://github.com/matrix-org/synapse/issues/14086))
- Correct the name of the config option [`encryption_enabled_by_default_for_room_type`](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#encryption_enabled_by_default_for_room_type). ([\#14110](https://github.com/matrix-org/synapse/issues/14110))
- Update docstrings of `SynapseError` and `FederationError` to bettter describe what they are used for and the effects of using them are. ([\#14191](https://github.com/matrix-org/synapse/issues/14191))

Internal Changes
----------------

- Remove unused `@lru_cache` decorator. ([\#13595](https://github.com/matrix-org/synapse/issues/13595))
- Save login tokens in database and prevent login token reuse. ([\#13844](https://github.com/matrix-org/synapse/issues/13844))
- Refactor OIDC tests to better mimic an actual OIDC provider. ([\#13910](https://github.com/matrix-org/synapse/issues/13910))
- Fix type annotation causing import time error in the Complement forking launcher. ([\#14084](https://github.com/matrix-org/synapse/issues/14084))
- Refactor [MSC3030](https://github.com/matrix-org/matrix-spec-proposals/pull/3030) `/timestamp_to_event` endpoint to loop over federation destinations with standard pattern and error handling. ([\#14096](https://github.com/matrix-org/synapse/issues/14096))
- Add initial power level event to batch of bulk persisted events when creating a new room. ([\#14228](https://github.com/matrix-org/synapse/issues/14228))
- Refactor `/key/` endpoints to use `RestServlet` classes. ([\#14229](https://github.com/matrix-org/synapse/issues/14229))
- Switch to using the `matrix-org/backend-meta` version of `triage-incoming` for new issues in CI. ([\#14230](https://github.com/matrix-org/synapse/issues/14230))
- Build wheels on macos 11, not 10.15. ([\#14249](https://github.com/matrix-org/synapse/issues/14249))
- Add debugging to help diagnose lost device list updates. ([\#14268](https://github.com/matrix-org/synapse/issues/14268))
- Add Rust cache to CI for `trial` runs. ([\#14287](https://github.com/matrix-org/synapse/issues/14287))
- Improve type hinting of `RawHeaders`. ([\#14303](https://github.com/matrix-org/synapse/issues/14303))
- Use Poetry 1.2.0 in the Twisted Trunk CI job. ([\#14305](https://github.com/matrix-org/synapse/issues/14305))

<details>
<summary>Dependency updates</summary>

Runtime:

- Bump anyhow from 1.0.65 to 1.0.66. ([\#14278](https://github.com/matrix-org/synapse/issues/14278))
- Bump jinja2 from 3.0.3 to 3.1.2. ([\#14271](https://github.com/matrix-org/synapse/issues/14271))
- Bump prometheus-client from 0.14.0 to 0.15.0. ([\#14274](https://github.com/matrix-org/synapse/issues/14274))
- Bump psycopg2 from 2.9.4 to 2.9.5. ([\#14331](https://github.com/matrix-org/synapse/issues/14331))
- Bump pysaml2 from 7.1.2 to 7.2.1. ([\#14270](https://github.com/matrix-org/synapse/issues/14270))
- Bump sentry-sdk from 1.5.11 to 1.10.1. ([\#14330](https://github.com/matrix-org/synapse/issues/14330))
- Bump serde from 1.0.145 to 1.0.147. ([\#14277](https://github.com/matrix-org/synapse/issues/14277))
- Bump serde_json from 1.0.86 to 1.0.87. ([\#14279](https://github.com/matrix-org/synapse/issues/14279))

Tooling and CI:

- Bump black from 22.3.0 to 22.10.0. ([\#14328](https://github.com/matrix-org/synapse/issues/14328))
- Bump flake8-bugbear from 21.3.2 to 22.9.23. ([\#14042](https://github.com/matrix-org/synapse/issues/14042))
- Bump peaceiris/actions-gh-pages from 3.8.0 to 3.9.0. ([\#14276](https://github.com/matrix-org/synapse/issues/14276))
- Bump peaceiris/actions-mdbook from 1.1.14 to 1.2.0. ([\#14275](https://github.com/matrix-org/synapse/issues/14275))
- Bump setuptools-rust from 1.5.1 to 1.5.2. ([\#14273](https://github.com/matrix-org/synapse/issues/14273))
- Bump twine from 3.8.0 to 4.0.1. ([\#14332](https://github.com/matrix-org/synapse/issues/14332))
- Bump types-opentracing from 2.4.7 to 2.4.10. ([\#14133](https://github.com/matrix-org/synapse/issues/14133))
- Bump types-requests from 2.28.11 to 2.28.11.2. ([\#14272](https://github.com/matrix-org/synapse/issues/14272))
</details>

Synapse 1.72.0rc1 (2022-11-16)
==============================

Please note that we now only support PostgreSQL 11+, because PostgreSQL 10 has reached end-of-life, c.f. our [Deprecation Policy](https://github.com/matrix-org/synapse/blob/develop/docs/deprecation_policy.md).

Features
--------

- Add experimental support for [MSC3912](https://github.com/matrix-org/matrix-spec-proposals/pull/3912): Relation-based redactions. ([\#14260](https://github.com/matrix-org/synapse/issues/14260))
- Build Debian packages for Ubuntu 22.10 (Kinetic Kudu). ([\#14396](https://github.com/matrix-org/synapse/issues/14396))
- Add an [Admin API](https://matrix-org.github.io/synapse/latest/usage/administration/admin_api/index.html) endpoint for user lookup based on third-party ID (3PID). Contributed by @ashfame. ([\#14405](https://github.com/matrix-org/synapse/issues/14405))
- Faster joins: include heroes' membership events in the partial join response, for rooms without a name or canonical alias. ([\#14442](https://github.com/matrix-org/synapse/issues/14442))

Bugfixes
--------

- Faster joins: do not block creation of or queries for room aliases during the resync. ([\#14292](https://github.com/matrix-org/synapse/issues/14292))
- Fix a bug introduced in Synapse 1.64.0rc1 which could cause log spam when fetching events from other homeservers. ([\#14347](https://github.com/matrix-org/synapse/issues/14347))
- Fix a bug introduced in 1.66 which would not send certain pushrules to clients. Contributed by Nico. ([\#14356](https://github.com/matrix-org/synapse/issues/14356))
- Fix a bug introduced in v1.71.0rc1 where the power level event was incorrectly created during initial room creation. ([\#14361](https://github.com/matrix-org/synapse/issues/14361))
- Fix the refresh token endpoint to be under /r0 and /v3 instead of /v1. Contributed by Tulir @ Beeper. ([\#14364](https://github.com/matrix-org/synapse/issues/14364))
- Fix a long-standing bug where Synapse would raise an error when encountering an unrecognised field in a `/sync` filter, instead of ignoring it for forward compatibility. ([\#14369](https://github.com/matrix-org/synapse/issues/14369))
- Fix a background database update, introduced in Synapse 1.64.0, which could cause poor database performance. ([\#14374](https://github.com/matrix-org/synapse/issues/14374))
- Fix PostgreSQL sometimes using table scans for queries against the `event_search` table, taking a long time and a large amount of IO. ([\#14409](https://github.com/matrix-org/synapse/issues/14409))
- Fix rendering of some HTML templates (including emails). Introduced in v1.71.0. ([\#14448](https://github.com/matrix-org/synapse/issues/14448))
- Fix a bug introduced in Synapse 1.70.0 where the background updates to add non-thread unique indexes on receipts could fail when upgrading from 1.67.0 or earlier. ([\#14453](https://github.com/matrix-org/synapse/issues/14453))

Updates to the Docker image
---------------------------

- Add all Stream Writer worker types to `configure_workers_and_start.py`. ([\#14197](https://github.com/matrix-org/synapse/issues/14197))
- Remove references to legacy worker types in the multi-worker Dockerfile. ([\#14294](https://github.com/matrix-org/synapse/issues/14294))

Improved Documentation
----------------------

- Upload documentation PRs to Netlify. ([\#12947](https://github.com/matrix-org/synapse/issues/12947), [\#14370](https://github.com/matrix-org/synapse/issues/14370))
- Add addtional TURN server configuration example based on [eturnal](https://github.com/processone/eturnal) and adjust general TURN server doc structure. ([\#14293](https://github.com/matrix-org/synapse/issues/14293))
- Add example on how to load balance /sync requests. Contributed by [aceArt](https://aceart.de). ([\#14297](https://github.com/matrix-org/synapse/issues/14297))
- Edit sample Nginx reverse proxy configuration to use HTTP/1.1. Contributed by Brad Jones. ([\#14414](https://github.com/matrix-org/synapse/issues/14414))

Deprecations and Removals
-------------------------

- Remove support for PostgreSQL 10. ([\#14392](https://github.com/matrix-org/synapse/issues/14392), [\#14397](https://github.com/matrix-org/synapse/issues/14397))

Internal Changes
----------------

- Run unit tests against Python 3.11. ([\#13812](https://github.com/matrix-org/synapse/issues/13812))
- Add TLS support for generic worker endpoints. ([\#14128](https://github.com/matrix-org/synapse/issues/14128), [\#14455](https://github.com/matrix-org/synapse/issues/14455))
- Switch to a maintained action for installing Rust in CI. ([\#14313](https://github.com/matrix-org/synapse/issues/14313))
- Add override ability to `complement.sh` command line script to request certain types of workers. ([\#14324](https://github.com/matrix-org/synapse/issues/14324))
- Enabling testing of [MSC3874](https://github.com/matrix-org/matrix-spec-proposals/pull/3874) (filtering of `/messages` by relation type) in complement. ([\#14339](https://github.com/matrix-org/synapse/issues/14339))
- Concisely log a failure to resolve state due to missing `prev_events`. ([\#14346](https://github.com/matrix-org/synapse/issues/14346))
- Use a maintained Github action to install Rust. ([\#14351](https://github.com/matrix-org/synapse/issues/14351))
- Cleanup old worker datastore classes. Contributed by Nick @ Beeper (@fizzadar). ([\#14375](https://github.com/matrix-org/synapse/issues/14375))
- Test against PostgreSQL 15 in CI. ([\#14394](https://github.com/matrix-org/synapse/issues/14394))
- Remove unreachable code. ([\#14410](https://github.com/matrix-org/synapse/issues/14410))
- Clean-up event persistence code. ([\#14411](https://github.com/matrix-org/synapse/issues/14411))
- Update docstring to clarify that `get_partial_state_events_batch` does not just give you completely arbitrary partial-state events. ([\#14417](https://github.com/matrix-org/synapse/issues/14417))
- Fix mypy errors introduced by bumping the locked version of `attrs` and `gitpython`. ([\#14433](https://github.com/matrix-org/synapse/issues/14433))
- Make Dependabot only bump Rust deps in the lock file. ([\#14434](https://github.com/matrix-org/synapse/issues/14434))
- Fix an incorrect stub return type for `PushRuleEvaluator.run`. ([\#14451](https://github.com/matrix-org/synapse/issues/14451))
- Improve performance of `/context` in large rooms. ([\#14461](https://github.com/matrix-org/synapse/issues/14461))

Synapse 1.72.0 (2022-11-22)
===========================

Please note that Synapse now only supports PostgreSQL 11+, because PostgreSQL 10 has reached end-of-life, c.f. our [Deprecation Policy](https://github.com/matrix-org/synapse/blob/develop/docs/deprecation_policy.md).

Bugfixes
--------

- Update forgotten references to legacy metrics in the included Grafana dashboard. ([\#14477](https://github.com/matrix-org/synapse/issues/14477))

Synapse 1.72.0rc1 (2022-11-16)
==============================

Features
--------

- Add experimental support for [MSC3912](https://github.com/matrix-org/matrix-spec-proposals/pull/3912): Relation-based redactions. ([\#14260](https://github.com/matrix-org/synapse/issues/14260))
- Build Debian packages for Ubuntu 22.10 (Kinetic Kudu). ([\#14396](https://github.com/matrix-org/synapse/issues/14396))
- Add an [Admin API](https://matrix-org.github.io/synapse/latest/usage/administration/admin_api/index.html) endpoint for user lookup based on third-party ID (3PID). Contributed by @ashfame. ([\#14405](https://github.com/matrix-org/synapse/issues/14405))
- Faster joins: include heroes' membership events in the partial join response, for rooms without a name or canonical alias. ([\#14442](https://github.com/matrix-org/synapse/issues/14442))

Bugfixes
--------

- Faster joins: do not block creation of or queries for room aliases during the resync. ([\#14292](https://github.com/matrix-org/synapse/issues/14292))
- Fix a bug introduced in Synapse 1.64.0rc1 which could cause log spam when fetching events from other homeservers. ([\#14347](https://github.com/matrix-org/synapse/issues/14347))
- Fix a bug introduced in 1.66 which would not send certain pushrules to clients. Contributed by Nico. ([\#14356](https://github.com/matrix-org/synapse/issues/14356))
- Fix a bug introduced in v1.71.0rc1 where the power level event was incorrectly created during initial room creation. ([\#14361](https://github.com/matrix-org/synapse/issues/14361))
- Fix the refresh token endpoint to be under /r0 and /v3 instead of /v1. Contributed by Tulir @ Beeper. ([\#14364](https://github.com/matrix-org/synapse/issues/14364))
- Fix a long-standing bug where Synapse would raise an error when encountering an unrecognised field in a `/sync` filter, instead of ignoring it for forward compatibility. ([\#14369](https://github.com/matrix-org/synapse/issues/14369))
- Fix a background database update, introduced in Synapse 1.64.0, which could cause poor database performance. ([\#14374](https://github.com/matrix-org/synapse/issues/14374))
- Fix PostgreSQL sometimes using table scans for queries against the `event_search` table, taking a long time and a large amount of IO. ([\#14409](https://github.com/matrix-org/synapse/issues/14409))
- Fix rendering of some HTML templates (including emails). Introduced in v1.71.0. ([\#14448](https://github.com/matrix-org/synapse/issues/14448))
- Fix a bug introduced in Synapse 1.70.0 where the background updates to add non-thread unique indexes on receipts could fail when upgrading from 1.67.0 or earlier. ([\#14453](https://github.com/matrix-org/synapse/issues/14453))

Updates to the Docker image
---------------------------

- Add all Stream Writer worker types to `configure_workers_and_start.py`. ([\#14197](https://github.com/matrix-org/synapse/issues/14197))
- Remove references to legacy worker types in the multi-worker Dockerfile. ([\#14294](https://github.com/matrix-org/synapse/issues/14294))

Improved Documentation
----------------------

- Upload documentation PRs to Netlify. ([\#12947](https://github.com/matrix-org/synapse/issues/12947), [\#14370](https://github.com/matrix-org/synapse/issues/14370))
- Add addtional TURN server configuration example based on [eturnal](https://github.com/processone/eturnal) and adjust general TURN server doc structure. ([\#14293](https://github.com/matrix-org/synapse/issues/14293))
- Add example on how to load balance /sync requests. Contributed by [aceArt](https://aceart.de). ([\#14297](https://github.com/matrix-org/synapse/issues/14297))
- Edit sample Nginx reverse proxy configuration to use HTTP/1.1. Contributed by Brad Jones. ([\#14414](https://github.com/matrix-org/synapse/issues/14414))

Deprecations and Removals
-------------------------

- Remove support for PostgreSQL 10. ([\#14392](https://github.com/matrix-org/synapse/issues/14392), [\#14397](https://github.com/matrix-org/synapse/issues/14397))

Internal Changes
----------------

- Run unit tests against Python 3.11. ([\#13812](https://github.com/matrix-org/synapse/issues/13812))
- Add TLS support for generic worker endpoints. ([\#14128](https://github.com/matrix-org/synapse/issues/14128), [\#14455](https://github.com/matrix-org/synapse/issues/14455))
- Switch to a maintained action for installing Rust in CI. ([\#14313](https://github.com/matrix-org/synapse/issues/14313))
- Add override ability to `complement.sh` command line script to request certain types of workers. ([\#14324](https://github.com/matrix-org/synapse/issues/14324))
- Enabling testing of [MSC3874](https://github.com/matrix-org/matrix-spec-proposals/pull/3874) (filtering of `/messages` by relation type) in complement. ([\#14339](https://github.com/matrix-org/synapse/issues/14339))
- Concisely log a failure to resolve state due to missing `prev_events`. ([\#14346](https://github.com/matrix-org/synapse/issues/14346))
- Use a maintained Github action to install Rust. ([\#14351](https://github.com/matrix-org/synapse/issues/14351))
- Cleanup old worker datastore classes. Contributed by Nick @ Beeper (@fizzadar). ([\#14375](https://github.com/matrix-org/synapse/issues/14375))
- Test against PostgreSQL 15 in CI. ([\#14394](https://github.com/matrix-org/synapse/issues/14394))
- Remove unreachable code. ([\#14410](https://github.com/matrix-org/synapse/issues/14410))
- Clean-up event persistence code. ([\#14411](https://github.com/matrix-org/synapse/issues/14411))
- Update docstring to clarify that `get_partial_state_events_batch` does not just give you completely arbitrary partial-state events. ([\#14417](https://github.com/matrix-org/synapse/issues/14417))
- Fix mypy errors introduced by bumping the locked version of `attrs` and `gitpython`. ([\#14433](https://github.com/matrix-org/synapse/issues/14433))
- Make Dependabot only bump Rust deps in the lock file. ([\#14434](https://github.com/matrix-org/synapse/issues/14434))
- Fix an incorrect stub return type for `PushRuleEvaluator.run`. ([\#14451](https://github.com/matrix-org/synapse/issues/14451))
- Improve performance of `/context` in large rooms. ([\#14461](https://github.com/matrix-org/synapse/issues/14461))