Synapse 1.50.0rc1 (2022-01-05)

Please note that we now only support Python 3.7+ and PostgreSQL 10+ (if applicable), because Python 3.6 and PostgreSQL 9.6 have reached end-of-life.

Features

• Allow guests to send state events per MSC3419. (#11378)
• Add experimental support for part of MSC3202: allowing application services to masquerade as specific devices. (#11538)
• Add admin API to get users' account data. (#11664)
• Include the room topic in the stripped state included with invites and knocking. (#11666)
• Send and handle cross-signing messages using the stable prefix. (#10520)
• Support unprefixed versions of fallback key property names. (#11541)

Bugfixes

• Fix a long-standing bug where relations from other rooms could be included in the bundled aggregations of an event. (#11516)
• Fix a long-standing bug which could cause AssertionErrors to be written to the log when Synapse was restarted after purging events from the database. (#11536, #11642)
• Fix a bug introduced in Synapse 1.17.0 where a pusher created for an email with capital letters would fail to be created. (#11547)
• Fix a long-standing bug where responses included bundled aggregations when they should not, per MSC2675. (#11592, #11623)
• Fix a long-standing bug that some unknown endpoints would return HTML error pages instead of JSON M_UNRECOGNIZED errors. (#11602)
• Fix a bug introduced in Synapse 1.19.3 which could sometimes cause AssertionErrors when backfilling rooms over federation. (#11632)

Improved Documentation

• Update Synapse install command for FreeBSD as the package is now prefixed with py38. Contributed by @itchychips. (#11267)
• Document the usage of refresh tokens. (#11427)
• Add details for how to configure a TURN server when behind a NAT. Contibuted by @AndrewFerr. (#11553)
• Add references for using Postgres to the Docker documentation. (#11640)
• Fix the documentation link in newly-generated configuration files. (#11678)
• Correct the documentation for nginx to use a case-sensitive url pattern. Fixes an error introduced in v1.21.0. (#11680)
• Clarify SSO mapping provider documentation by writing def or async def before the names of methods, as appropriate. (#11681)

Deprecations and Removals

• Replace mock package by its standard library version. (#11588)

Internal Changes

• Allow specific, experimental events to be created without prev_events. Used by MSC2716. (#11243)
• A test helper (wait_for_background_updates) no longer depends on classes defining a store property. (#11331)
• Add type hints to synapse.appservice. (#11360)
• Add missing type hints to synapse.config module. (#11480)
• Add test to ensure we share the same state_group across the whole historical batch when using the MSC2716 /batch_send endpoint. (#11487)
• Refactor tests.util.setup_test_homeserver and tests.server.setup_test_homeserver. (#11503)
• Move glob_to_regex and re_word_boundary to matrix-python-common. (#11505, #11687)
• Use HTTPStatus constants in place of literals in tests.rest.client.test_auth. (#11520)
• Add a receipt types constant for m.read. (#11531)
• Clean up synapse.rest.admin. (#11535)
• Add missing errcode to parse_string and parse_boolean. (#11542)
• Use HTTPStatus constants in place of literals in synapse.http. (#11543)
• Add missing type hints to storage classes. (#11546, #11549, #11551, #11555, #11575, #11589, #11594, #11652, #11653, #11654, #11657)
• Fix an inaccurate and misleading comment in the /sync code. (#11550)
• Add missing type hints to synapse.logging.context. (#11556)
• Stop populating unused database column state_events.prev_state. (#11558)
• Minor efficiency improvements in event persistence. (#11560)
• Add some safety checks that storage functions are used correctly. (#11564, #11580)
• Make get_device return None if the device doesn't exist rather than raising an exception. (#11565)
• Split the HTML parsing code from the URL preview resource code. (#11566)
• Remove redundant COALESCE()s around COUNT()s in database queries. (#11570)
• Add missing type hints to synapse.http. (#11571)
• Add MSC2716 and MSC3030 to /versions -> unstable_features to detect server support. (#11582)
• Add type hints to synapse/tests/rest/admin. (#11590)
• Drop end-of-life Python 3.6 and Postgres 9.6 from CI. (#11595)
• Update black version and run it on all the files. (#11596)
• Add opentracing type stubs and fix associated mypy errors. (#11603, #11622)
• Improve OpenTracing support for requests which use a ResponseCache. (#11607)
• Improve OpenTracing support for incoming HTTP requests. (#11618)
• A number of improvements to opentracing support. (#11619)
• Drop support for Python 3.6 and Ubuntu 18.04. (#11633)
• Refactor the way that the outlier flag is set on events received over federation. (#11634)
• Improve the error messages from get_create_event_for_room. (#11638)
• Remove redundant get_current_events_token method. (#11643)
• Convert namedtuples to attrs. (#11665, #11574)
• Update the /capabilities response to include whether support for MSC3440 is available. (#11690)
• Send the Accept header in HTTP requests made using SimpleHttpClient.get_json. (#11677)
• Work around Mjolnir compatibility issue by adding an import for glob_to_regex in synapse.util, where it moved from. (#11696)