- Add config option `redis.password_path`. ([\#17717](https://github.com/element-hq/synapse/issues/17717)) - Fix a rare bug introduced in v1.29.0 where invalidating a user's access token from a worker could raise an error. ([\#17779](https://github.com/element-hq/synapse/issues/17779)) - In the response to `GET /_matrix/client/versions`, set the `unstable_features` flag for [MSC4140](https://github.com/matrix-org/matrix-spec-proposals/pull/4140) to `false` when server configuration disables support for delayed events. ([\#17780](https://github.com/element-hq/synapse/issues/17780)) - Improve input validation and room membership checks in admin redaction API. ([\#17792](https://github.com/element-hq/synapse/issues/17792)) - Clarify the docstring of `test_forget_when_not_left`. ([\#17628](https://github.com/element-hq/synapse/issues/17628)) - Add documentation note about PYTHONMALLOC for accurate jemalloc memory tracking. Contributed by @hensg. ([\#17709](https://github.com/element-hq/synapse/issues/17709)) - Remove spurious "TODO UPDATE ALL THIS" note in the Debian installation docs. ([\#17749](https://github.com/element-hq/synapse/issues/17749)) - Explain how load balancing works for `federation_sender_instances`. ([\#17776](https://github.com/element-hq/synapse/issues/17776)) - Minor performance increase for large accounts using sliding sync. ([\#17751](https://github.com/element-hq/synapse/issues/17751)) - Increase performance of the notifier when there are many syncing users. ([\#17765](https://github.com/element-hq/synapse/issues/17765), [\#17766](https://github.com/element-hq/synapse/issues/17766)) - Fix performance of streams that don't change often. ([\#17767](https://github.com/element-hq/synapse/issues/17767)) - Improve performance of sliding sync connections that do not ask for any rooms. ([\#17768](https://github.com/element-hq/synapse/issues/17768)) - Reduce overhead of sliding sync E2EE loops. ([\#17771](https://github.com/element-hq/synapse/issues/17771)) - Sliding sync minor performance speed up using new table. ([\#17787](https://github.com/element-hq/synapse/issues/17787)) - Sliding sync minor performance improvement by omitting unchanged data from incremental responses. ([\#17788](https://github.com/element-hq/synapse/issues/17788)) - Speed up sliding sync when there are many active subscriptions. ([\#17789](https://github.com/element-hq/synapse/issues/17789)) - Add missing license headers on new source files. ([\#17799](https://github.com/element-hq/synapse/issues/17799)) * Bump phonenumbers from 8.13.45 to 8.13.46. ([\#17773](https://github.com/element-hq/synapse/issues/17773)) * Bump python-multipart from 0.0.10 to 0.0.12. ([\#17772](https://github.com/element-hq/synapse/issues/17772)) * Bump regex from 1.10.6 to 1.11.0. ([\#17770](https://github.com/element-hq/synapse/issues/17770)) * Bump ruff from 0.6.7 to 0.6.8. ([\#17774](https://github.com/element-hq/synapse/issues/17774))