No significant changes since 1.129.0rc2. Synapse 1.129.0rc1 was never formally released due to regressions discovered during the release process. 1.129.0rc2 fixes those regressions by reverting the affected PRs. - Revert the slow background update introduced by [\#18068](https://github.com/element-hq/synapse/issues/18068) in v1.128.0. ([\#18372](https://github.com/element-hq/synapse/issues/18372)) - Revert "Add total event, unencrypted message, and e2ee event counts to stats reporting", added in v1.129.0rc1. ([\#18373](https://github.com/element-hq/synapse/issues/18373)) - Add `passthrough_authorization_parameters` in OIDC configuration to allow passing parameters to the authorization grant URL. ([\#18232](https://github.com/element-hq/synapse/issues/18232)) - Add `total_event_count`, `total_message_count`, and `total_e2ee_event_count` fields to the homeserver usage statistics. ([\#18260](https://github.com/element-hq/synapse/issues/18260)) - Fix `force_tracing_for_users` config when using delegated auth. ([\#18334](https://github.com/element-hq/synapse/issues/18334)) - Fix the token introspection cache logging access tokens when MAS integration is in use. ([\#18335](https://github.com/element-hq/synapse/issues/18335)) - Stop caching introspection failures when delegating auth to MAS. ([\#18339](https://github.com/element-hq/synapse/issues/18339)) - Fix `ExternalIDReuse` exception after migrating to MAS on workers with a high traffic. ([\#18342](https://github.com/element-hq/synapse/issues/18342)) - Fix minor performance regression caused by tracking of room participation. Regressed in v1.128.0. ([\#18345](https://github.com/element-hq/synapse/issues/18345)) - Optimize the build of the complement-synapse image. ([\#18294](https://github.com/element-hq/synapse/issues/18294)) - Disable statement timeout during room purge. ([\#18133](https://github.com/element-hq/synapse/issues/18133)) - Add cache to storage functions used to auth requests when using delegated auth. ([\#18337](https://github.com/element-hq/synapse/issues/18337))