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Synapse 0.33.2rc1 (2018-08-07)
==============================

Features
--------

- add support for the lazy_loaded_members filter as per MSC1227 ([\#2970](https://github.com/matrix-org/synapse/issues/2970>))
- add support for the include_redundant_members filter param as per MSC1227 ([\#3331](https://github.com/matrix-org/synapse/issues/3331>))
- Add metrics to track resource usage by background processes ([\#3553](https://github.com/matrix-org/synapse/issues/3553>), [\#3556](https://github.com/matrix-org/synapse/issues/3556>), [\#3604](https://github.com/matrix-org/synapse/issues/3604>),
[\#3610](https://github.com/matrix-org/synapse/issues/3610>))
- Add `code` label to `synapse_http_server_response_time_seconds` prometheus metric ([\#3554](https://github.com/matrix-org/synapse/issues/3554>))
- Add support for client_reader to handle more APIs ([\#3555](https://github.com/matrix-org/synapse/issues/3555>), [\#3597](https://github.com/matrix-org/synapse/issues/3597>))
- make the /context API filter & lazy-load aware as per MSC1227 ([\#3567](https://github.com/matrix-org/synapse/issues/3567>))
- Add ability to limit number of monthly active users on the server ([\#3630](https://github.com/matrix-org/synapse/issues/3630>))
- When we fail to join a room over federation, pass the error code back to the client. ([\#3639](https://github.com/matrix-org/synapse/issues/3639>))

Bugfixes
--------

- Make /directory/list API return 404 for room not found instead of 400 ([\#2952](https://github.com/matrix-org/synapse/issues/2952>))
- Default inviter_display_name to mxid for email invites ([\#3391](https://github.com/matrix-org/synapse/issues/3391>))
- Don't generate TURN credentials if no TURN config options are set ([\#3514](https://github.com/matrix-org/synapse/issues/3514>))
- Correctly announce deleted devices over federation ([\#3520](https://github.com/matrix-org/synapse/issues/3520>))
- Catch failures saving metrics captured by Measure, and instead log the faulty metrics information for further analysis. ([\#3548](https://github.com/matrix-org/synapse/issues/3548>))
- Unicode passwords are now normalised before hashing, preventing the instance where two different devices or browsers might send a different UTF-8 sequence for the password. ([\#3569](https://github.com/matrix-org/synapse/issues/3569>))
- Fix potential stack overflow and deadlock under heavy load ([\#3570](https://github.com/matrix-org/synapse/issues/3570>))
- Respond with M_NOT_FOUND when profiles are not found locally or over federation. Fixes #3585 ([\#3585](https://github.com/matrix-org/synapse/issues/3585>))
- Fix failure to persist events over federation under load ([\#3601](https://github.com/matrix-org/synapse/issues/3601>))
- Fix updating of cached remote profiles ([\#3605](https://github.com/matrix-org/synapse/issues/3605>))
- Fix 'tuple index out of range' error ([\#3607](https://github.com/matrix-org/synapse/issues/3607>))
- Only import secrets when available (fix for py < 3.6) ([\#3626](https://github.com/matrix-org/synapse/issues/3626>))

Internal Changes
----------------

- Remove redundant checks on who_forgot_in_room ([\#3350](https://github.com/matrix-org/synapse/issues/3350>))
- Remove unnecessary event re-signing hacks ([\#3367](https://github.com/matrix-org/synapse/issues/3367>))
- Rewrite cache list decorator ([\#3384](https://github.com/matrix-org/synapse/issues/3384>))
-  ([\#3415](https://github.com/matrix-org/synapse/issues/3415>), [\#3460](https://github.com/matrix-org/synapse/issues/3460>), [\#3562](https://github.com/matrix-org/synapse/issues/3562>), [\#3577](https://github.com/matrix-org/synapse/issues/3577>))
- Improve Dockerfile and docker-compose instructions ([\#3543](https://github.com/matrix-org/synapse/issues/3543>))
- Release notes are now in the Markdown format. ([\#3552](https://github.com/matrix-org/synapse/issues/3552>))
- add config for pep8 ([\#3559](https://github.com/matrix-org/synapse/issues/3559>))
- Merge Linearizer and Limiter ([\#3571](https://github.com/matrix-org/synapse/issues/3571>), [\#3572](https://github.com/matrix-org/synapse/issues/3572>))
- Lazily load state on master process when using workers to reduce DB consumption ([\#3579](https://github.com/matrix-org/synapse/issues/3579>), [\#3581](https://github.com/matrix-org/synapse/issues/3581>),
[\#3582](https://github.com/matrix-org/synapse/issues/3582>), [\#3584](https://github.com/matrix-org/synapse/issues/3584>))
- Fixes and optimisations for resolve_state_groups ([\#3586](https://github.com/matrix-org/synapse/issues/3586>))
- Improve logging for exceptions when handling PDUs ([\#3587](https://github.com/matrix-org/synapse/issues/3587>))
- Add some measure blocks to persist_events ([\#3590](https://github.com/matrix-org/synapse/issues/3590>))
- Fix some random logcontext leaks. ([\#3591](https://github.com/matrix-org/synapse/issues/3591>), [\#3606](https://github.com/matrix-org/synapse/issues/3606>))
- Speed up calculating state deltas in persist_event loop ([\#3592](https://github.com/matrix-org/synapse/issues/3592>))
- Attempt to reduce amount of state pulled out of DB during persist_events ([\#3595](https://github.com/matrix-org/synapse/issues/3595>))
- Fix a documentation typo in on_make_leave_request ([\#3609](https://github.com/matrix-org/synapse/issues/3609>))
- Make EventStore inherit from EventFederationStore ([\#3612](https://github.com/matrix-org/synapse/issues/3612>))
- Remove some redundant joins on event_edges.room_id ([\#3613](https://github.com/matrix-org/synapse/issues/3613>))
- Stop populating events.content ([\#3614](https://github.com/matrix-org/synapse/issues/3614>))
- Update the /send_leave path registration to use event_id rather than a transaction ID. ([\#3616](https://github.com/matrix-org/synapse/issues/3616>))
- Refactor FederationHandler to move DB writes into separate functions ([\#3621](https://github.com/matrix-org/synapse/issues/3621>))
- Remove unused field "pdu_failures" from transactions. ([\#3628](https://github.com/matrix-org/synapse/issues/3628>))
- rename replication_layer to federation_client ([\#3634](https://github.com/matrix-org/synapse/issues/3634>))
- Factor out exception handling in federation_client ([\#3638](https://github.com/matrix-org/synapse/issues/3638>))
- Refactor location of docker build script. ([\#3644](https://github.com/matrix-org/synapse/issues/3644>))
- Update CONTRIBUTING to mention newsfragments. ([\#3645](https://github.com/matrix-org/synapse/issues/3645>))