v1.47.0rc1

Synapse 1.47.0rc1 (2021-11-09)

Deprecations and Removals

• The user_may_create_room_with_invites module callback is now deprecated. Please refer to the upgrade notes for more information. (#11206)
• Remove deprecated admin API to delete rooms (POST /_synapse/admin/v1/rooms/<room_id>/delete). (#11213)

Features

• Advertise support for Client-Server API r0.6.1. (#11097)
• Add search by room ID and room alias to the List Room admin API. (#11099)
• Add an on_new_event third-party rules callback to allow Synapse modules to act after an event has been sent into a room. (#11126)
• Add a module API method to update a user's membership in a room. (#11147)
• Add metrics for thread pool usage. (#11178)
• Support the stable room type field for MSC3288. (#11187)
• Add a module API method to retrieve the current state of a room. (#11204)
• Calculate a default value for public_baseurl based on server_name. (#11210)
• Add support for serving /.well-known/matrix/server files, to redirect federation traffic to port 443. (#11211)
• Add admin APIs to pause, start and check the status of background updates. (#11263)

Bugfixes

• Fix a long-standing bug which allowed hidden devices to receive to-device messages, resulting in unnecessary database bloat. (#10097)
• Fix a long-standing bug where messages in the device_inbox table for deleted devices would persist indefinitely. Contributed by @dklimpel and @JohannesKleine. (#10969, #11212)
• Do not accept events if a third-party rule check_event_allowed callback raises an exception. (#11033)
• Fix long-standing bug where verification requests could fail in certain cases if a federation whitelist was in place but did not include your own homeserver. (#11129)
• Allow an empty list of state_events_at_start to be sent when using the MSC2716 /batch_send endpoint and the author of the historical messages is already part of the current room state at the given ?prev_event_id. (#11188)
• Fix a bug introduced in Synapse 1.45.0 which prevented the synapse_review_recent_signups script from running. Contributed by @samuel-p. (#11191)
• Delete to_device messages for hidden devices that will never be read, reducing database size. (#11199)
• Fix a long-standing bug wherein a missing Content-Type header when downloading remote media would cause Synapse to throw an error. (#11200)
• Fix a long-standing bug which could result in serialization errors and potentially duplicate transaction data when sending ephemeral events to application services. Contributed by @Fizzadar at Beeper. (#11207)
• Fix a bug introduced in Synapse 1.35.0 which made it impossible to join rooms that return a send_join response containing floats. (#11217)
• Fix long-standing bug where cross signing keys were not included in the response to /r0/keys/query the first time a remote user was queried. (#11234)
• Fix a long-standing bug where all requests that read events from the database could get stuck as a result of losing the database connection. (#11240)
• Fix a bug preventing Synapse from being rolled back to an earlier version when using workers. (#11255, #11276)
• Fix a bug introduced in Synapse 1.37.1 which caused a remote event being processed by a worker to not get processed on restart if the worker was killed. (#11262)
• Only allow old Element/Riot Android clients to send read receipts without a request body. All other clients must include a request body as required by the specification. Contributed by @rogersheu. (#11157)

Updates to the Docker image

• Avoid changing user ID when started as a non-root user, and no explicit UID is set. (#11209)

Improved Documentation

• Improve example HAProxy config in the docs to properly handle HTTP Host headers with port information. This is required for federation over port 443 to work correctly. (#11128)
• Add documentation for using Authentik as an OpenID Connect Identity Provider. Contributed by @samip5. (#11151)
• Clarify lack of support for Windows. (#11198)
• Improve code formatting and fix a few typos in docs. Contributed by @sumnerevans at Beeper. (#11221)
• Add documentation for using LemonLDAP as an OpenID Connect Identity Provider. Contributed by @l00ptr. (#11257)

Internal Changes

• Add type annotations for the log_function decorator. (#10943)
• Add type hints to synapse.events. (#11098)
• Remove and document unnecessary RoomStreamToken checks in application service ephemeral event code. (#11137)
• Add type hints so that synapse.http passes mypy checks. (#11164)
• Update scripts to pass Shellcheck lints. (#11166)
• Add knock information in admin export. Contributed by Rafael Gonçalves. (#11171)
• Add tests to check that ClientIpStore.get_last_client_ip_by_device and get_user_ip_and_agents combine database and in-memory data correctly. (#11179)
• Refactor Filter to check different fields depending on the data type. (#11194)
• Improve type hints for the relations datastore. (#11205)
• Replace outdated links in the pull request checklist with links to the rendered documentation. (#11225)
• Fix a bug in unit test test_block_room_and_not_purge. (#11226)
• In ObservableDeferred, run observers in the order they were registered. (#11229)
• Minor speed up to start up times and getting updates for groups by adding missing index to local_group_updates.stream_id. (#11231)
• Add twine and towncrier as dev dependencies, as they're used by the release script. (#11233)
• Allow stream_writers.typing config to be a list of one worker. (#11237)
• Remove debugging statement in tests. (#11239)
• Fix MSC2716 historical messages backfilling in random order on remote homeservers. (#11244)
• Add an additional test for the cachedList method decorator. (#11246)
• Make minor correction to the type of auth_checkers callbacks. (#11253)
• Clean up trivial aspects of the Debian package build tooling. (#11269, #11273)
• Blacklist new SyTest that checks that key uploads are valid pending the validation being implemented in Synapse. (#11270)