In line with our [deprecation policy](https://github.com/element-hq/synapse/blob/develop/docs/deprecation_policy.md), we've dropped support for PostgreSQL 13, as it is no longer supported upstream. This release of Synapse requires PostgreSQL 14+. No significant changes since 1.143.0rc2. In line with our [deprecation policy](https://github.com/element-hq/synapse/blob/develop/docs/deprecation_policy.md), we've dropped support for PostgreSQL 13, as it is no longer supported upstream. This release of Synapse requires PostgreSQL 14+. - Fixes docker image creation in the release workflow. - Support multiple config files in `register_new_matrix_user`. ([\#18784](https://github.com/element-hq/synapse/issues/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](https://github.com/element-hq/synapse/issues/19152)) - Fixed a longstanding bug where background updates were only run on the `main` database. ([\#19181](https://github.com/element-hq/synapse/issues/19181)) - Fixed a bug introduced in v1.142.0 preventing subpaths in MAS endpoints from working. ([\#19186](https://github.com/element-hq/synapse/issues/19186)) - Fix the SQLite-to-PostgreSQL migration script to correctly migrate a boolean column in the `delayed_events` table. ([\#19155](https://github.com/element-hq/synapse/issues/19155)) - Improve documentation around streams, particularly ID generators and adding new streams. ([\#18943](https://github.com/element-hq/synapse/issues/18943)) - Remove support for PostgreSQL 13. ([\#19170](https://github.com/element-hq/synapse/issues/19170)) - Provide additional servers with federation room directory results. ([\#18970](https://github.com/element-hq/synapse/issues/18970)) - Add a shortcut return when there are no events to purge. ([\#19093](https://github.com/element-hq/synapse/issues/19093)) - Write union types as `X | Y` where possible, as per PEP 604, added in Python 3.10. ([\#19111](https://github.com/element-hq/synapse/issues/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](https://github.com/element-hq/synapse/issues/19133), [\#19168](https://github.com/element-hq/synapse/issues/19168)) - Run trial tests on Python 3.14 for PRs. ([\#19135](https://github.com/element-hq/synapse/issues/19135)) - Update `pyproject.toml` project metadata to be compatible with standard Python packaging tooling. ([\#19137](https://github.com/element-hq/synapse/issues/19137)) - Minor speed up of processing of inbound replication. ([\#19138](https://github.com/element-hq/synapse/issues/19138), [\#19145](https://github.com/element-hq/synapse/issues/19145), [\#19146](https://github.com/element-hq/synapse/issues/19146)) - Ignore recent Python language refactors from git blame (`.git-blame-ignore-revs`). ([\#19150](https://github.com/element-hq/synapse/issues/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](https://github.com/element-hq/synapse/issues/19167)) - Point out which event caused the exception when checking [MSC4293](https://github.com/matrix-org/matrix-spec-proposals/pull/4293) redactions. ([\#19169](https://github.com/element-hq/synapse/issues/19169)) - Restore printing `sentinel` for the log record `request` when no logcontext is active. ([\#19172](https://github.com/element-hq/synapse/issues/19172)) - Add debug logs to track `Clock` utilities. ([\#19173](https://github.com/element-hq/synapse/issues/19173)) - Remove explicit python version skips in `cibuildwheel` config as it's no longer required after [#19137](https://github.com/element-hq/synapse/pull/19137). ([\#19177](https://github.com/element-hq/synapse/issues/19177)) - Fix potential lost logcontext when `PerDestinationQueue.shutdown(...)` is called. ([\#19178](https://github.com/element-hq/synapse/issues/19178)) - Fix bad deferred logcontext handling across the codebase. ([\#19180](https://github.com/element-hq/synapse/issues/19180)) * Bump bytes from 1.10.1 to 1.11.0. ([\#19193](https://github.com/element-hq/synapse/issues/19193)) * Bump click from 8.1.8 to 8.3.1. ([\#19195](https://github.com/element-hq/synapse/issues/19195)) * Bump cryptography from 43.0.3 to 45.0.7. ([\#19159](https://github.com/element-hq/synapse/issues/19159)) * Bump docker/metadata-action from 5.8.0 to 5.9.0. ([\#19161](https://github.com/element-hq/synapse/issues/19161)) * Bump pydantic from 2.12.3 to 2.12.4. ([\#19158](https://github.com/element-hq/synapse/issues/19158)) * Bump pyo3-log from 0.13.1 to 0.13.2. ([\#19156](https://github.com/element-hq/synapse/issues/19156)) * Bump ruff from 0.14.3 to 0.14.5. ([\#19196](https://github.com/element-hq/synapse/issues/19196)) * Bump sentry-sdk from 2.34.1 to 2.43.0. ([\#19157](https://github.com/element-hq/synapse/issues/19157)) * Bump sentry-sdk from 2.43.0 to 2.44.0. ([\#19197](https://github.com/element-hq/synapse/issues/19197)) * Bump tomli from 2.2.1 to 2.3.0. ([\#19194](https://github.com/element-hq/synapse/issues/19194)) * Bump types-netaddr from 1.3.0.20240530 to 1.3.0.20251108. ([\#19160](https://github.com/element-hq/synapse/issues/19160))