Synapse 1.140.0 (2025-10-14)

Compatibility notice for users of synapse-s3-storage-provider

Deployments that make use of the synapse-s3-storage-provider module must upgrade to v1.6.0.

Using older versions of the module with this release of Synapse will prevent users from being able to upload or download media.

No significant changes since 1.140.0rc1.

Synapse 1.140.0rc1 (2025-10-10)

Features

• Add a new Media Query by ID Admin API that allows server admins to query and investigate the metadata of local or cached remote media via
  the origin/media_id identifier found in a Matrix Content URI. (#18911)
• Add a new Fetch Event Admin API to fetch an event by ID. (#18963)
• Update MSC4284: Policy Servers implementation to support signatures when available. (#18934)
• Add experimental implementation of the GET /_matrix/client/v1/rtc/transports endpoint for the latest draft of MSC4143: MatrixRTC. (#18967)
• Expose a defer_to_threadpool function in the Synapse Module API that allows modules to run a function on a separate thread in a custom threadpool. (#19032)

Bugfixes

• Fix room upgrade room_config argument and documentation for user_may_create_room spam-checker callback. (#18721)
• Compute a user's last seen timestamp from their devices' last seen timestamps instead of IPs, because the latter are automatically cleared according to user_ips_max_age. (#18948)
• Fix bug where ephemeral events were not filtered by room ID. Contributed by @frastefanini. (#19002)
• Update Synapse main process version string to include git info. (#19011)

Improved Documentation

• Explain how Deferred callbacks interact with logcontexts. (#18914)
• Fix documentation for rc_room_creation and rc_reports to clarify that a per_user rate limit is not supported. (#18998)

Deprecations and Removals

• Remove deprecated LoggingContext.set_current_context/LoggingContext.current_context methods which already have equivalent bare methods in synapse.logging.context. (#18989)
• Drop support for unstable field names from the long-accepted MSC2732 (Olm fallback keys) proposal. (#18996)

Internal Changes

• Cleanly shutdown SynapseHomeServer object, allowing artifacts of embedded small hosts to be properly garbage collected. (#18828)
• Update OEmbed providers to use 'X' instead of 'Twitter' in URL previews, following a rebrand. Contributed by @HammyHavoc. (#18767)
• Fix server_name in logging context for multiple Synapse instances in one process. (#18868)
• Wrap the Rust HTTP client with make_deferred_yieldable so it follows Synapse logcontext rules. (#18903)
• Fix the GitHub Actions workflow that moves issues labeled "X-Needs-Info" to the "Needs info" column on the team's internal triage board. (#18913)
• Disconnect background process work from request trace. (#18932)
• Reduce overall number of calls to _get_e2e_cross_signing_signatures_for_devices by increasing the batch size of devices the query is called with, reducing DB load. (#18939)
• Update error code used when an appservice tries to masquerade as an unknown device using MSC4326. Contributed by @tulir @ Beeper. (#18947)
• Fix no active span when trying to log tracing error on startup (when OpenTracing is enabled). (#18959)
• Fix run_coroutine_in_background(...) incorrectly handling logcontext. (#18964)
• Add debug logs wherever we change current logcontext. (#18966)
• Update dockerfile metadata to fix broken link; point to documentation website. (#18971)
• Note that the code is additionally licensed under the Element Commercial license in SPDX expression field configs. (#18973)
• Fix logcontext handling in timeout_deferred tests. (#18974)
• Remove internal ReplicationUploadKeysForUserRestServlet as a follow-up to the work in #18581 that moved device changes off the main process. (#18988)
• Switch task scheduler from raw logcontext manipulation to using the dedicated logcontext utils. (#18990)
• Remove MockClock() in tests. (#18992)
• Switch back to our own custom LogContextScopeManager instead of OpenTracing's ContextVarsScopeManager which was causing problems when using the experimental SYNAPSE_ASYNC_IO_REACTOR option with tracing enabled. (#19007)
• Remove version_string argument from HomeServer since it's always the same. (#19012)
• Remove duplicate call to hs.start_background_tasks() introduced from a bad merge. (#19013)
• Split homeserver creation (create_homeserver) and setup (setup). (#19015)
• Swap near-end-of-life macos-13 GitHub Actions runner for the macos-15-intel variant. (#19025)
• Introduce RootConfig.validate_config() which can be subclassed in HomeServerConfig to do cross-config class validation. (#19027)
• Allow any command of the release.py script to accept a --gh-token argument. (#19035)

Updates to locked dependencies

• Bump Swatinem/rust-cache from 2.8.0 to 2.8.1. (#18949)
• Bump actions/cache from 4.2.4 to 4.3.0. (#18983)
• Bump anyhow from 1.0.99 to 1.0.100. (#18950)
• Bump authlib from 1.6.3 to 1.6.4. (#18957)
• Bump authlib from 1.6.4 to 1.6.5. (#19019)
• Bump bcrypt from 4.3.0 to 5.0.0. (#18984)
• Bump docker/login-action from 3.5.0 to 3.6.0. (#18978)
• Bump lxml from 6.0.0 to 6.0.2. (#18979)
• Bump phonenumbers from 9.0.13 to 9.0.14. (#18954)
• Bump phonenumbers from 9.0.14 to 9.0.15. (#18991)
• Bump prometheus-client from 0.22.1 to 0.23.1. (#19016)
• Bump pydantic from 2.11.9 to 2.11.10. (#19017)
• Bump pygithub from 2.7.0 to 2.8.1. (#18952)
• Bump regex from 1.11.2 to 1.11.3. (#18981)
• Bump serde from 1.0.224 to 1.0.226. (#18953)
• Bump serde from 1.0.226 to 1.0.228. (#18982)
• Bump setuptools-rust from 1.11.1 to 1.12.0. (#18980)
• Bump twine from 6.1.0 to 6.2.0. (#18985)
• Bump types-pyyaml from 6.0.12.20250809 to 6.0.12.20250915. (#19018)
• Bump types-requests from 2.32.4.20250809 to 2.32.4.20250913. (#18951)
• Bump typing-extensions from 4.14.1 to 4.15.0. (#18956)