No significant changes since 1.108.0rc1.

- Add a feature that allows clients to query the configured federation whitelist. Disabled by default. ([\#16848](element-hq/synapse#16848), [\#17199](element-hq/synapse#17199))
- Add the ability to allow numeric user IDs with a specific prefix when in the CAS flow. Contributed by Aurélien Grimpard. ([\#17098](element-hq/synapse#17098))

- Fix bug where push rules would be empty in `/sync` for some accounts. Introduced in v1.93.0. ([\#17142](element-hq/synapse#17142))
- Add support for optional whitespace around the Federation API's `Authorization` header's parameter commas. ([\#17145](element-hq/synapse#17145))
- Fix bug where disabling room publication prevented public rooms being created on workers. ([\#17177](element-hq/synapse#17177), [\#17184](element-hq/synapse#17184))

- Document [`/v1/make_knock`](https://spec.matrix.org/v1.10/server-server-api/#get_matrixfederationv1make_knockroomiduserid) and [`/v1/send_knock/`](https://spec.matrix.org/v1.10/server-server-api/#put_matrixfederationv1send_knockroomideventid) federation endpoints as worker-compatible. ([\#17058](element-hq/synapse#17058))
- Update User Admin API with note about prefixing OIDC external_id providers. ([\#17139](element-hq/synapse#17139))
- Clarify the state of the created room when using the `autocreate_auto_join_room_preset` config option. ([\#17150](element-hq/synapse#17150))
- Update the Admin FAQ with the current libjemalloc version for latest Debian stable. Additionally update the name of the "push_rules" stream in the Workers documentation. ([\#17171](element-hq/synapse#17171))

- Add note to reflect that [MSC3886](matrix-org/matrix-spec-proposals#3886) is closed but will remain supported for some time. ([\#17151](element-hq/synapse#17151))
- Update dependency PyO3 to 0.21. ([\#17162](element-hq/synapse#17162))
- Fixes linter errors found in PR #17147. ([\#17166](element-hq/synapse#17166))
- Bump black from 24.2.0 to 24.4.2. ([\#17170](element-hq/synapse#17170))
- Cache literal sync filter validation for performance. ([\#17186](element-hq/synapse#17186))
- Improve performance by fixing a reactor pause. ([\#17192](element-hq/synapse#17192))
- Route `/make_knock` and `/send_knock` federation APIs to the federation reader worker in Complement test runs. ([\#17195](element-hq/synapse#17195))
- Prepare sync handler to be able to return different sync responses (`SyncVersion`). ([\#17200](element-hq/synapse#17200))
- Organize the sync cache key parameter outside of the sync config (separate concerns). ([\#17201](element-hq/synapse#17201))
- Refactor `SyncResultBuilder` assembly to its own function. ([\#17202](element-hq/synapse#17202))
- Rename to be obvious: `joined_rooms` -> `joined_room_ids`. ([\#17203](element-hq/synapse#17203), [\#17208](element-hq/synapse#17208))
- Add a short pause when rate-limiting a request. ([\#17210](element-hq/synapse#17210))

* Bump cryptography from 42.0.5 to 42.0.7. ([\#17180](element-hq/synapse#17180))
* Bump gitpython from 3.1.41 to 3.1.43. ([\#17181](element-hq/synapse#17181))
* Bump immutabledict from 4.1.0 to 4.2.0. ([\#17179](element-hq/synapse#17179))
* Bump sentry-sdk from 1.40.3 to 2.1.1. ([\#17178](element-hq/synapse#17178))
* Bump serde from 1.0.200 to 1.0.201. ([\#17183](element-hq/synapse#17183))
* Bump serde_json from 1.0.116 to 1.0.117. ([\#17182](element-hq/synapse#17182))

# Synapse 1.109.0 (2024-06-18)

- Add the ability to auto-accept invites on the behalf of users. See
  the
  [`auto_accept_invites`](https://element-hq.github.io/synapse/latest/usage/configuration/config_documentation.html#auto-accept-invites)
  config option for
  details. ([\#17147](element-hq/synapse#17147))

- Add experimental
  [MSC3575](matrix-org/matrix-spec-proposals#3575)
  Sliding Sync `/sync/e2ee` endpoint for to-device messages and device
  encryption
  info. ([\#17167](element-hq/synapse#17167))

- Support
  [MSC3916](matrix-org/matrix-spec-proposals#3916)
  by adding unstable media endpoints to
  `/_matrix/client`. ([\#17213](element-hq/synapse#17213))

- Add logging to tasks managed by the task scheduler, showing CPU and
  database
  usage. ([\#17219](element-hq/synapse#17219))


# Synapse 1.108.0 (2024-05-28)

- Add a feature that allows clients to query the configured federation
  whitelist. Disabled by
  default. ([\#16848](element-hq/synapse#16848),
  [\#17199](element-hq/synapse#17199))

- Add the ability to allow numeric user IDs with a specific prefix
  when in the CAS flow. Contributed by Aurélien
  Grimpard. ([\#17098](element-hq/synapse#17098))


Synapse 1.107.0 (2024-05-14)

- Add preliminary support for [MSC3823: Account
  Suspension](matrix-org/matrix-spec-proposals#3823).
  ([\#17051](element-hq/synapse#17051))

- Declare support for [Matrix
  v1.10](https://matrix.org/blog/2024/03/22/matrix-v1.10-release/). Contributed
  by
  @clokep. ([\#17082](element-hq/synapse#17082))

- Add support for [MSC4115: membership metadata on
  events](matrix-org/matrix-spec-proposals#4115).
  ([\#17104](element-hq/synapse#17104),
  [\#17137](element-hq/synapse#17137))


# Synapse 1.106.0 (2024-04-30)

- Send an email if the address is already bound to an user
  account. ([\#16819](element-hq/synapse#16819))

- Implement the rendezvous mechanism described by
  [MSC4108](matrix-org/matrix-spec-proposals#4108).
  ([\#17056](element-hq/synapse#17056))

- Support delegating the rendezvous mechanism described
  [MSC4108](matrix-org/matrix-spec-proposals#4108)
  to an external
  implementation. ([\#17086](element-hq/synapse#17086))