Changes in synapse v0.21.1 (2017-06-15)
=======================================

Bug fixes:

* Fix bug in anonymous usage statistic reporting (PR #2281)

Changes in synapse v0.22.0-rc1 (2017-06-26)
===========================================

Features:

* Add a user directory API (PR #2252, and many more)
* Add shutdown room API to remove room from local server (PR #2291)
* Add API to quarantine media (PR #2292)
* Add new config option to not send event contents to push servers (PR #2301)
  Thanks to @cjdelisle!

Changes:

* Various performance fixes (PR #2177, #2233, #2230, #2238, #2248, #2256,
  #2274)
* Deduplicate sync filters (PR #2219) Thanks to @krombel!
* Correct a typo in UPGRADE.rst (PR #2231) Thanks to @aaronraimist!
* Add count of one time keys to sync stream (PR #2237)
* Only store event_auth for state events (PR #2247)
* Store URL cache preview downloads separately (PR #2299)

Bug fixes:

* Fix users not getting notifications when AS listened to that user_id (PR
  #2216) Thanks to @slipeer!
* Fix users without push set up not getting notifications after joining rooms
  (PR #2236)
* Fix preview url API to trim long descriptions (PR #2243)
* Fix bug where we used cached but unpersisted state group as prev group,
  resulting in broken state of restart (PR #2263)
* Fix removing of pushers when using workers (PR #2267)
* Fix CORS headers to allow Authorization header (PR #2285) Thanks to @krombel!

Changes in synapse v0.22.0-rc2 (2017-07-04)
===========================================

Changes:

* Improve performance of storing user IPs (PR #2307, #2308)
* Slightly improve performance of verifying access tokens (PR #2320)
* Slightly improve performance of event persistence (PR #2321)
* Increase default cache factor size from 0.1 to 0.5 (PR #2330)

Bug fixes:

* Fix bug with storing registration sessions that caused frequent CPU churn
  (PR #2319)

Changes in synapse v0.22.0 (2017-07-06)
=======================================

No changes since v0.22.0-rc2

Changes in synapse v0.22.0-rc2 (2017-07-04)
===========================================

Changes:

* Improve performance of storing user IPs (PR #2307, #2308)
* Slightly improve performance of verifying access tokens (PR #2320)
* Slightly improve performance of event persistence (PR #2321)
* Increase default cache factor size from 0.1 to 0.5 (PR #2330)

Bug fixes:

* Fix bug with storing registration sessions that caused frequent CPU churn
  (PR #2319)

Changes in synapse v0.22.0-rc1 (2017-06-26)
===========================================

Features:

* Add a user directory API (PR #2252, and many more)
* Add shutdown room API to remove room from local server (PR #2291)
* Add API to quarantine media (PR #2292)
* Add new config option to not send event contents to push servers (PR #2301)
  Thanks to @cjdelisle!

Changes:

* Various performance fixes (PR #2177, #2233, #2230, #2238, #2248, #2256,
  #2274)
* Deduplicate sync filters (PR #2219) Thanks to @krombel!
* Correct a typo in UPGRADE.rst (PR #2231) Thanks to @aaronraimist!
* Add count of one time keys to sync stream (PR #2237)
* Only store event_auth for state events (PR #2247)
* Store URL cache preview downloads separately (PR #2299)

Bug fixes:

* Fix users not getting notifications when AS listened to that user_id (PR
  #2216) Thanks to @slipeer!
* Fix users without push set up not getting notifications after joining rooms
  (PR #2236)
* Fix preview url API to trim long descriptions (PR #2243)
* Fix bug where we used cached but unpersisted state group as prev group,
  resulting in broken state of restart (PR #2263)
* Fix removing of pushers when using workers (PR #2267)
* Fix CORS headers to allow Authorization header (PR #2285) Thanks to @krombel!

Changes in synapse v0.22.1 (2017-07-06)
=======================================

Bug fixes:

* Fix bug where pusher pool didn't start and caused issues when
  interacting with some rooms (PR #2342)

Changes in synapse v0.23.0-rc1 (2017-09-25)
===========================================

Features:

* Add a frontend proxy worker (PR #2344)
* Add support for event_id_only push format (PR #2450)
* Add a PoC for filtering spammy events (PR #2456)
* Add a config option to block all room invites (PR #2457)

Changes:

* Use bcrypt module instead of py-bcrypt (PR #2288) Thanks to @kyrias!
* Improve performance of generating push notifications (PR #2343, #2357, #2365,
  #2366, #2371)
* Improve DB performance for device list handling in sync (PR #2362)
* Include a sample prometheus config (PR #2416)
* Document known to work postgres version (PR #2433) Thanks to @ptman!

Bug fixes:

* Fix caching error in the push evaluator (PR #2332)
* Fix bug where pusherpool didn't start and broke some rooms (PR #2342)
* Fix port script for user directory tables (PR #2375)
* Fix device lists notifications when user rejoins a room (PR #2443, #2449)
* Fix sync to always send down current state events in timeline (PR #2451)
* Fix bug where guest users were incorrectly kicked (PR #2453)
* Fix bug talking to IPv6 only servers using SRV records (PR #2462)

Changes in synapse v0.23.0-rc2 (2017-09-26)
===========================================

Bug fixes:

* Fix regression in performance of syncs (PR #2470)

Changes in synapse v0.23.0 (2017-10-02)
=======================================

No changes since v0.23.0-rc2

Changes in synapse v0.23.1 (2017-10-02)
=======================================

Changes:

* Make 'affinity' package optional, as it is not supported on some platforms

Changes in synapse v0.24.0-rc1 (2017-10-19)
===========================================

Features:

* Add Group Server (PR #2352, #2363, #2374, #2377, #2378, #2382, #2410,
  #2426, #2430, #2454, #2471, #2472, #2544)
* Add support for channel notifications (PR #2501)
* Add basic implementation of backup media store (PR #2538)
* Add config option to auto-join new users to rooms (PR #2545)

Changes:

* Make the spam checker a module (PR #2474)
* Delete expired url cache data (PR #2478)
* Ignore incoming events for rooms that we have left (PR #2490)
* Allow spam checker to reject invites too (PR #2492)
* Add room creation checks to spam checker (PR #2495)
* Spam checking: add the invitee to user_may_invite (PR #2502)
* Process events from federation for different rooms in parallel (PR
  #2520)
* Allow error strings from spam checker (PR #2531)
* Improve error handling for missing files in config (PR #2551)

Bug fixes:

* Fix handling SERVFAILs when doing AAAA lookups for federation (PR
  #2477)
* Fix incompatibility with newer versions of ujson (PR #2483) Thanks to
  @jeremycline!
* Fix notification keywords that start/end with non-word chars (PR
  #2500)
* Fix stack overflow and logcontexts from linearizer (PR #2532)
* Fix 500 error when fields missing from power_levels event (PR #2552)
* Fix 500 error when we get an error handling a PDU (PR #2553)

Changes in synapse v0.24.0 (2017-10-23)
=======================================

No changes since v0.24.0-rc1

Changes in synapse v0.24.0-rc1 (2017-10-19)
===========================================

Features:

* Add Group Server (PR #2352, #2363, #2374, #2377, #2378, #2382, #2410,
  #2426, #2430, #2454, #2471, #2472, #2544)
* Add support for channel notifications (PR #2501)
* Add basic implementation of backup media store (PR #2538)
* Add config option to auto-join new users to rooms (PR #2545)

Changes:

* Make the spam checker a module (PR #2474)
* Delete expired url cache data (PR #2478)
* Ignore incoming events for rooms that we have left (PR #2490)
* Allow spam checker to reject invites too (PR #2492)
* Add room creation checks to spam checker (PR #2495)
* Spam checking: add the invitee to user_may_invite (PR #2502)
* Process events from federation for different rooms in parallel (PR
  #2520)
* Allow error strings from spam checker (PR #2531)
* Improve error handling for missing files in config (PR #2551)

Bug fixes:

* Fix handling SERVFAILs when doing AAAA lookups for federation (PR
  #2477)
* Fix incompatibility with newer versions of ujson (PR #2483) Thanks to
  @jeremycline!
* Fix notification keywords that start/end with non-word chars (PR
  #2500)
* Fix stack overflow and logcontexts from linearizer (PR #2532)
* Fix 500 error when fields missing from power_levels event (PR #2552)
* Fix 500 error when we get an error handling a PDU (PR #2553)

Changes in synapse v0.24.1 (2017-10-24)
=======================================

Bug fixes:

* Fix updating group profiles over federation (PR #2567)

Changes in synapse v0.25.0-rc1 (2017-11-14)
===========================================

Features:

* Add is_public to groups table to allow for private groups (PR #2582)
* Add a route for determining who you are (PR #2668) Thanks to
  @turt2live!
* Add more features to the password providers (PR #2608, #2610, #2620,
  #2622, #2623, #2624, #2626, #2628, #2629)
* Add a hook for custom rest endpoints (PR #2627)
* Add API to update group room visibility (PR #2651)

Changes:

* Ignore <noscript> tags when generating URL preview descriptions (PR
  #2576) Thanks to @maximevaillancourt!
* Register some /unstable endpoints in /r0 as well (PR #2579) Thanks to
  @krombel!
* Support /keys/upload on /r0 as well as /unstable (PR #2585)
* Front-end proxy: pass through auth header (PR #2586)
* Allow ASes to deactivate their own users (PR #2589)
* Remove refresh tokens (PR #2613)
* Automatically set default displayname on register (PR #2617)
* Log login requests (PR #2618)
* Always return `is_public` in the `/groups/:group_id/rooms` API (PR
  #2630)
* Avoid no-op media deletes (PR #2637) Thanks to @spantaleev!
* Fix various embarrassing typos around user_directory and add some doc.
  (PR #2643)
* Return whether a user is an admin within a group (PR #2647)
* Namespace visibility options for groups (PR #2657)
* Downcase UserIDs on registration (PR #2662)
* Cache failures when fetching URL previews (PR #2669)

Bug fixes:

* Fix port script (PR #2577)
* Fix error when running synapse with no logfile (PR #2581)
* Fix UI auth when deleting devices (PR #2591)
* Fix typo when checking if user is invited to group (PR #2599)
* Fix the port script to drop NUL values in all tables (PR #2611)
* Fix appservices being backlogged and not receiving new events due to a
  bug in notify_interested_services (PR #2631) Thanks to @xyzz!
* Fix updating rooms avatar/display name when modified by admin (PR
  #2636) Thanks to @farialima!
* Fix bug in state group storage (PR #2649)
* Fix 500 on invalid utf-8 in request (PR #2663)

Changes in synapse v0.25.0 (2017-11-15)
=======================================

Bug fixes:

* Fix port script (PR #2673)

Changes in synapse v0.25.0-rc1 (2017-11-14)
===========================================

Features:

* Add is_public to groups table to allow for private groups (PR #2582)
* Add a route for determining who you are (PR #2668) Thanks to
  @turt2live!
* Add more features to the password providers (PR #2608, #2610, #2620,
  #2622, #2623, #2624, #2626, #2628, #2629)
* Add a hook for custom rest endpoints (PR #2627)
* Add API to update group room visibility (PR #2651)

Changes:

* Ignore <noscript> tags when generating URL preview descriptions (PR
  #2576) Thanks to @maximevaillancourt!
* Register some /unstable endpoints in /r0 as well (PR #2579) Thanks to
  @krombel!
* Support /keys/upload on /r0 as well as /unstable (PR #2585)
* Front-end proxy: pass through auth header (PR #2586)
* Allow ASes to deactivate their own users (PR #2589)
* Remove refresh tokens (PR #2613)
* Automatically set default displayname on register (PR #2617)
* Log login requests (PR #2618)
* Always return `is_public` in the `/groups/:group_id/rooms` API (PR
  #2630)
* Avoid no-op media deletes (PR #2637) Thanks to @spantaleev!
* Fix various embarrassing typos around user_directory and add some doc.
  (PR #2643)
* Return whether a user is an admin within a group (PR #2647)
* Namespace visibility options for groups (PR #2657)
* Downcase UserIDs on registration (PR #2662)
* Cache failures when fetching URL previews (PR #2669)

Bug fixes:

* Fix port script (PR #2577)
* Fix error when running synapse with no logfile (PR #2581)
* Fix UI auth when deleting devices (PR #2591)
* Fix typo when checking if user is invited to group (PR #2599)
* Fix the port script to drop NUL values in all tables (PR #2611)
* Fix appservices being backlogged and not receiving new events due to a
  bug in notify_interested_services (PR #2631) Thanks to @xyzz!
* Fix updating rooms avatar/display name when modified by admin (PR
  #2636) Thanks to @farialima!
* Fix bug in state group storage (PR #2649)
* Fix 500 on invalid utf-8 in request (PR #2663)

Changes in synapse v0.25.1 (2017-11-17)
=======================================

Bug fixes:

* Fix login with LDAP and other password provider modules (PR #2678). Thanks to
  @jkolo!

Changes in synapse v0.26.0-rc1 (2017-12-13)
===========================================

Features:

* Add ability for ASes to publicise groups for their users (PR #2686)
* Add all local users to the user_directory and optionally search them (PR
  #2723)
* Add support for custom login types for validating users (PR #2729)

Changes:

* Update example Prometheus config to new format (PR #2648) Thanks to
  @krombel!
* Rename redact_content option to include_content in Push API (PR #2650)
* Declare support for r0.3.0 (PR #2677)
* Improve upserts (PR #2684, #2688, #2689, #2713)
* Improve documentation of workers (PR #2700)
* Improve tracebacks on exceptions (PR #2705)
* Allow guest access to group APIs for reading (PR #2715)
* Support for posting content in federation_client script (PR #2716)
* Delete devices and pushers on logouts etc (PR #2722)

Bug fixes:

* Fix database port script (PR #2673)
* Fix internal server error on login with ldap_auth_provider (PR #2678) Thanks
  to @jkolo!
* Fix error on sqlite 3.7 (PR #2697)
* Fix OPTIONS on preview_url (PR #2707)
* Fix error handling on dns lookup (PR #2711)
* Fix wrong avatars when inviting multiple users when creating room (PR #2717)
* Fix 500 when joining matrix-dev (PR #2719)

Changes in synapse v0.26.0 (2018-01-05)
=======================================

No changes since v0.26.0-rc1

Changes in synapse v0.26.0-rc1 (2017-12-13)
===========================================

Features:

* Add ability for ASes to publicise groups for their users (PR #2686)
* Add all local users to the user_directory and optionally search them (PR
  #2723)
* Add support for custom login types for validating users (PR #2729)

Changes:

* Update example Prometheus config to new format (PR #2648) Thanks to
  @krombel!
* Rename redact_content option to include_content in Push API (PR #2650)
* Declare support for r0.3.0 (PR #2677)
* Improve upserts (PR #2684, #2688, #2689, #2713)
* Improve documentation of workers (PR #2700)
* Improve tracebacks on exceptions (PR #2705)
* Allow guest access to group APIs for reading (PR #2715)
* Support for posting content in federation_client script (PR #2716)
* Delete devices and pushers on logouts etc (PR #2722)

Bug fixes:

* Fix database port script (PR #2673)
* Fix internal server error on login with ldap_auth_provider (PR #2678) Thanks
  to @jkolo!
* Fix error on sqlite 3.7 (PR #2697)
* Fix OPTIONS on preview_url (PR #2707)
* Fix error handling on dns lookup (PR #2711)
* Fix wrong avatars when inviting multiple users when creating room (PR #2717)
* Fix 500 when joining matrix-dev (PR #2719)

Changes in synapse v0.27.0-rc1 (2018-03-14)
===========================================

The common case for running Synapse is not to run separate workers, but for those that do, be aware that synctl no longer starts the main synapse when using ``-a`` option with workers. A new worker file should be added with ``worker_app: synapse.app.homeserver``.

This release also begins the process of renaming a number of the metrics
reported to prometheus. See `docs/metrics-howto.rst <docs/metrics-howto.rst#block-and-response-metrics-renamed-for-0-27-0>`_.
Note that the v0.28.0 release will remove the deprecated metric names.

Features:

* Add ability for ASes to override message send time (PR #2754)
* Add support for custom storage providers for media repository (PR #2867, #2777, #2783, #2789, #2791, #2804, #2812, #2814, #2857, #2868, #2767)
* Add purge API features, see `docs/admin_api/purge_history_api.rst <docs/admin_api/purge_history_api.rst>`_ for full details (PR #2858, #2867, #2882, #2946, #2962, #2943)
* Add support for whitelisting 3PIDs that users can register. (PR #2813)
* Add ``/room/{id}/event/{id}`` API (PR #2766)
* Add an admin API to get all the media in a room (PR #2818) Thanks to @turt2live!
* Add ``federation_domain_whitelist`` option (PR #2820, #2821)

Changes:

* Continue to factor out processing from main process and into worker processes. See updated `docs/workers.rst <docs/metrics-howto.rst>`_ (PR #2892 - #2904, #2913, #2920 - #2926, #2947, #2847, #2854, #2872, #2873, #2874, #2928, #2929, #2934, #2856, #2976 - #2984, #2987 - #2989, #2991 - #2993, #2995, #2784)
* Ensure state cache is used when persisting events (PR #2864, #2871, #2802, #2835, #2836, #2841, #2842, #2849)
* Change the default config to bind on both IPv4 and IPv6 on all platforms (PR #2435) Thanks to @silkeh!
* No longer require a specific version of saml2 (PR #2695) Thanks to @okurz!
* Remove ``verbosity``/``log_file`` from generated config (PR #2755)
* Add and improve metrics and logging (PR #2770, #2778, #2785, #2786, #2787, #2793, #2794, #2795, #2809, #2810, #2833, #2834, #2844, #2965, #2927, #2975, #2790, #2796, #2838)
* When using synctl with workers, don't start the main synapse automatically (PR #2774)
* Minor performance improvements (PR #2773, #2792)
* Use a connection pool for non-federation outbound connections (PR #2817)
* Make it possible to run unit tests against postgres (PR #2829)
* Update pynacl dependency to 1.2.1 or higher (PR #2888) Thanks to @bachp!
* Remove ability for AS users to call /events and /sync (PR #2948)
* Use bcrypt.checkpw (PR #2949) Thanks to @krombel!

Bug fixes:

* Fix broken ``ldap_config`` config option (PR #2683) Thanks to @seckrv!
* Fix error message when user is not allowed to unban (PR #2761) Thanks to @turt2live!
* Fix publicised groups GET API (singular) over federation (PR #2772)
* Fix user directory when using ``user_directory_search_all_users`` config option (PR #2803, #2831)
* Fix error on ``/publicRooms`` when no rooms exist (PR #2827)
* Fix bug in quarantine_media (PR #2837)
* Fix url_previews when no Content-Type is returned from URL (PR #2845)
* Fix rare race in sync API when joining room (PR #2944)
* Fix slow event search, switch back from GIST to GIN indexes (PR #2769, #2848)

Changes in synapse v0.26.1 (2018-03-15)
=======================================

Bug fixes:

* Fix bug where an invalid event caused server to stop functioning
  correctly, due to parsing and serializing bugs in ujson library.

Changes in synapse v0.27.0-rc2 (2018-03-19)
===========================================

Pulls in v0.26.1

Bug fixes:

* Fix bug introduced in v0.27.0-rc1 that causes much increased memory
  usage in state cache (PR #3005)

Changes in synapse v0.26.1 (2018-03-15)
=======================================

Bug fixes:

* Fix bug where an invalid event caused server to stop functioning
  correctly, due to parsing and serializing bugs in ujson library
  (PR #3008)