Synapse 1.143.0rc2 (2025-11-18)

Internal Changes

• Fixes docker image creation in the release workflow.

Synapse 1.143.0rc1 (2025-11-18)

Dropping support for PostgreSQL 13

In line with our deprecation policy, we've dropped
support for PostgreSQL 13, as it is no longer supported upstream.
This release of Synapse requires PostgreSQL 14+.

Features

• Support multiple config files in register_new_matrix_user. (#18784)
• Remove authentication from POST /_matrix/client/v1/delayed_events, and allow calling this endpoint with the update action to take (send/cancel/restart) in the request path instead of the body. (#19152)

Bugfixes

• Fixed a longstanding bug where background updates were only run on the main database. (#19181)
• Fixed a bug introduced in v1.142.0 preventing subpaths in MAS endpoints from working. (#19186)
• Fix the SQLite-to-PostgreSQL migration script to correctly migrate a boolean column in the delayed_events table. (#19155)

Improved Documentation

• Improve documentation around streams, particularly ID generators and adding new streams. (#18943)

Deprecations and Removals

• Remove support for PostgreSQL 13. (#19170)

Internal Changes

• Provide additional servers with federation room directory results. (#18970)
• Add a shortcut return when there are no events to purge. (#19093)
• Write union types as X | Y where possible, as per PEP 604, added in Python 3.10. (#19111)
• Reduce cardinality of synapse_storage_events_persisted_events_sep_total metric by removing origin_entity label. This also separates out events sent by local application services by changing the origin_type for such events to application_service. The type field also only tracks common event types, and anything else is bucketed under *other*. (#19133, #19168)
• Run trial tests on Python 3.14 for PRs. (#19135)
• Update pyproject.toml project metadata to be compatible with standard Python packaging tooling. (#19137)
• Minor speed up of processing of inbound replication. (#19138, #19145, #19146)
• Ignore recent Python language refactors from git blame (.git-blame-ignore-revs). (#19150)
• Bump lower bounds of dependencies parameterized to 0.9.0 and idna to 3.3 as those are the first to advertise support for Python 3.10. (#19167)
• Point out which event caused the exception when checking MSC4293 redactions. (#19169)
• Restore printing sentinel for the log record request when no logcontext is active. (#19172)
• Add debug logs to track Clock utilities. (#19173)
• Remove explicit python version skips in cibuildwheel config as it's no longer required after #19137. (#19177)
• Fix potential lost logcontext when PerDestinationQueue.shutdown(...) is called. (#19178)
• Fix bad deferred logcontext handling across the codebase. (#19180)

Updates to locked dependencies

• Bump bytes from 1.10.1 to 1.11.0. (#19193)
• Bump click from 8.1.8 to 8.3.1. (#19195)
• Bump cryptography from 43.0.3 to 45.0.7. (#19159)
• Bump docker/metadata-action from 5.8.0 to 5.9.0. (#19161)
• Bump pydantic from 2.12.3 to 2.12.4. (#19158)
• Bump pyo3-log from 0.13.1 to 0.13.2. (#19156)
• Bump ruff from 0.14.3 to 0.14.5. (#19196)
• Bump sentry-sdk from 2.34.1 to 2.43.0. (#19157)
• Bump sentry-sdk from 2.43.0 to 2.44.0. (#19197)
• Bump tomli from 2.2.1 to 2.3.0. (#19194)
• Bump types-netaddr from 1.3.0.20240530 to 1.3.0.20251108. (#19160)