[UPGRADE.rst#upgrading-to-v0340](upgrade notes) when doing so.
Features
--------
- Add option to track MAU stats (but not limit people) ([\#3830](https://github.com/matrix-org/synapse/issues/3830))
- Add an option to enable recording IPs for appservice users ([\#3831](https://github.com/matrix-org/synapse/issues/3831))
- Rename login type m.login.cas to m.login.sso ([\#4220](https://github.com/matrix-org/synapse/issues/4220))
- Add an option to disable search for homeservers that may not be interested in it. ([\#4230](https://github.com/matrix-org/synapse/issues/4230))
Bugfixes
--------
- Pushrules can now again be made with non-ASCII rule IDs. ([\#4165](https://github.com/matrix-org/synapse/issues/4165))
- The media repository now no longer fails to decode UTF-8 filenames when downloading remote media. ([\#4176](https://github.com/matrix-org/synapse/issues/4176))
- URL previews now correctly decode non-UTF-8 text if the header contains a `<meta http-equiv="Content-Type"` header. ([\#4183](https://github.com/matrix-org/synapse/issues/4183))
- Fix an issue where public consent URLs had two slashes. ([\#4192](https://github.com/matrix-org/synapse/issues/4192))
- Fallback auth now accepts the session parameter on Python 3. ([\#4197](https://github.com/matrix-org/synapse/issues/4197))
- Remove riot.im from the list of trusted Identity Servers in the default configuration ([\#4207](https://github.com/matrix-org/synapse/issues/4207))
- fix start up failure when mau_limit_reserved_threepids set and db is postgres ([\#4211](https://github.com/matrix-org/synapse/issues/4211))
- Fix auto join failures for servers that require user consent ([\#4223](https://github.com/matrix-org/synapse/issues/4223))
- Fix exception caused by non-ascii event IDs ([\#4241](https://github.com/matrix-org/synapse/issues/4241))
- Pushers can now be unsubscribed from on Python 3. ([\#4250](https://github.com/matrix-org/synapse/issues/4250))
- Fix UnicodeDecodeError when postgres is configured to give non-English errors ([\#4253](https://github.com/matrix-org/synapse/issues/4253))
Internal Changes
----------------
- A coveragerc file, as well as the py36-coverage tox target, have been added. ([\#4180](https://github.com/matrix-org/synapse/issues/4180))
- Add a GitHub pull request template and add multiple issue templates ([\#4182](https://github.com/matrix-org/synapse/issues/4182))
- Update README to reflect the fact that #1491 is fixed ([\#4188](https://github.com/matrix-org/synapse/issues/4188))
- Run the AS senders as background processes to fix warnings ([\#4189](https://github.com/matrix-org/synapse/issues/4189))
- Add some diagnostics to the tests to detect logcontext problems ([\#4190](https://github.com/matrix-org/synapse/issues/4190))
- Add missing `jpeg` package prerequisite for OpenBSD in README. ([\#4193](https://github.com/matrix-org/synapse/issues/4193))
- Add a note saying you need to manually reclaim disk space after using the Purge History API ([\#4200](https://github.com/matrix-org/synapse/issues/4200))
- More logcontext checking in unittests ([\#4205](https://github.com/matrix-org/synapse/issues/4205))
- Ignore __pycache__ directories in the database schema folder ([\#4214](https://github.com/matrix-org/synapse/issues/4214))
- Add note to UPGRADE.rst about removing riot.im from list of trusted identity servers ([\#4224](https://github.com/matrix-org/synapse/issues/4224))
- Added automated coverage reporting to CI. ([\#4225](https://github.com/matrix-org/synapse/issues/4225))
- Garbage-collect after each unit test to fix logcontext leaks ([\#4227](https://github.com/matrix-org/synapse/issues/4227))
- add more detail to logging regarding "More than one row matched" error ([\#4234](https://github.com/matrix-org/synapse/issues/4234))
- Drop sent_transactions table ([\#4244](https://github.com/matrix-org/synapse/issues/4244))
- Add a basic .editorconfig ([\#4257](https://github.com/matrix-org/synapse/issues/4257))
- Update README.rst and UPGRADE.rst for Python 3. ([\#4260](https://github.com/matrix-org/synapse/issues/4260))
- Remove obsolete `verbose` and `log_file` settings from `homeserver.yaml` for Docker image. ([\#4261](https://github.com/matrix-org/synapse/issues/4261))
- Include flags to optionally add `m.login.terms` to the registration flow when consent tracking is enabled. ([\#4004](https://github.com/matrix-org/synapse/issues/4004), [\#4133](https://github.com/matrix-org/synapse/issues/4133), [\#4142](https://github.com/matrix-org/synapse/issues/4142), [\#4184](https://github.com/matrix-org/synapse/issues/4184))
- Support for replacing rooms with new ones ([\#4091](https://github.com/matrix-org/synapse/issues/4091), [\#4099](https://github.com/matrix-org/synapse/issues/4099), [\#4100](https://github.com/matrix-org/synapse/issues/4100), [\#4101](https://github.com/matrix-org/synapse/issues/4101))
Bugfixes
--------
- Fix exceptions when using the email mailer on Python 3. ([\#4095](https://github.com/matrix-org/synapse/issues/4095))
- Fix e2e key backup with more than 9 backup versions ([\#4113](https://github.com/matrix-org/synapse/issues/4113))
- Searches that request profile info now no longer fail with a 500. ([\#4122](https://github.com/matrix-org/synapse/issues/4122))
- fix return code of empty key backups ([\#4123](https://github.com/matrix-org/synapse/issues/4123))
- If the typing stream ID goes backwards (as on a worker when the master restarts), the worker's typing handler will no longer erroneously report rooms containing new typing events. ([\#4127](https://github.com/matrix-org/synapse/issues/4127))
- Fix table lock of device_lists_remote_cache which could freeze the application ([\#4132](https://github.com/matrix-org/synapse/issues/4132))
- Fix exception when using state res v2 algorithm ([\#4135](https://github.com/matrix-org/synapse/issues/4135))
- Generating the user consent URI no longer fails on Python 3. ([\#4140](https://github.com/matrix-org/synapse/issues/4140), [\#4163](https://github.com/matrix-org/synapse/issues/4163))
- Loading URL previews from the DB cache on Postgres will no longer cause Unicode type errors when responding to the request, and URL previews will no longer fail if the remote server returns a Content-Type header with the chartype in quotes. ([\#4157](https://github.com/matrix-org/synapse/issues/4157))
- The hash_password script now works on Python 3. ([\#4161](https://github.com/matrix-org/synapse/issues/4161))
- Fix noop checks when updating device keys, reducing spurious device list update notifications. ([\#4164](https://github.com/matrix-org/synapse/issues/4164))
Deprecations and Removals
-------------------------
- The disused and un-specced identicon generator has been removed. ([\#4106](https://github.com/matrix-org/synapse/issues/4106))
- The obsolete and non-functional /pull federation endpoint has been removed. ([\#4118](https://github.com/matrix-org/synapse/issues/4118))
- The deprecated v1 key exchange endpoints have been removed. ([\#4119](https://github.com/matrix-org/synapse/issues/4119))
- Synapse will no longer fetch keys using the fallback deprecated v1 key exchange method and will now always use v2. ([\#4120](https://github.com/matrix-org/synapse/issues/4120))
Internal Changes
----------------
- Fix build of Docker image with docker-compose ([\#3778](https://github.com/matrix-org/synapse/issues/3778))
- Delete unreferenced state groups during history purge ([\#4006](https://github.com/matrix-org/synapse/issues/4006))
- The "Received rdata" log messages on workers is now logged at DEBUG, not INFO. ([\#4108](https://github.com/matrix-org/synapse/issues/4108))
- Reduce replication traffic for device lists ([\#4109](https://github.com/matrix-org/synapse/issues/4109))
- Fix `synapse_replication_tcp_protocol_*_commands` metric label to be full command name, rather than just the first character ([\#4110](https://github.com/matrix-org/synapse/issues/4110))
- Log some bits about room creation ([\#4121](https://github.com/matrix-org/synapse/issues/4121))
- Fix `tox` failure on old systems ([\#4124](https://github.com/matrix-org/synapse/issues/4124))
- Add STATE_V2_TEST room version ([\#4128](https://github.com/matrix-org/synapse/issues/4128))
- Clean up event accesses and tests ([\#4137](https://github.com/matrix-org/synapse/issues/4137))
- The default logging config will now set an explicit log file encoding of UTF-8. ([\#4138](https://github.com/matrix-org/synapse/issues/4138))
- Add helpers functions for getting prev and auth events of an event ([\#4139](https://github.com/matrix-org/synapse/issues/4139))
- Add some tests for the HTTP pusher. ([\#4149](https://github.com/matrix-org/synapse/issues/4149))
- add purge_history.sh and purge_remote_media.sh scripts to contrib/ ([\#4155](https://github.com/matrix-org/synapse/issues/4155))
- HTTP tests have been refactored to contain less boilerplate. ([\#4156](https://github.com/matrix-org/synapse/issues/4156))
- Drop incoming events from federation for unknown rooms ([\#4165](https://github.com/matrix-org/synapse/issues/4165))
- Servers with auto-join rooms will now automatically create those rooms when the first user registers ([\#3975](https://github.com/matrix-org/synapse/issues/3975))
- Add config option to control alias creation ([\#4051](https://github.com/matrix-org/synapse/issues/4051))
- The register_new_matrix_user script is now ported to Python 3. ([\#4085](https://github.com/matrix-org/synapse/issues/4085))
- Configure Docker image to listen on both ipv4 and ipv6. ([\#4089](https://github.com/matrix-org/synapse/issues/4089))
Bugfixes
--------
- Fix HTTP error response codes for federated group requests. ([\#3969](https://github.com/matrix-org/synapse/issues/3969))
- Fix URL previewing to work in Python 3.7 ([\#4050](https://github.com/matrix-org/synapse/issues/4050))
- synctl will use the right python executable to run worker processes ([\#4057](https://github.com/matrix-org/synapse/issues/4057))
- Manhole now works again on Python 3, instead of failing with a "couldn't match all kex parts" when connecting. ([\#4060](https://github.com/matrix-org/synapse/issues/4060), [\#4067](https://github.com/matrix-org/synapse/issues/4067))
- Fix some metrics being racy and causing exceptions when polled by Prometheus. ([\#4061](https://github.com/matrix-org/synapse/issues/4061))
- Fix bug which prevented email notifications from being sent unless an absolute path was given for `email_templates`. ([\#4068](https://github.com/matrix-org/synapse/issues/4068))
- Correctly account for cpu usage by background threads ([\#4074](https://github.com/matrix-org/synapse/issues/4074))
- Fix race condition where config defined reserved users were not being added to
the monthly active user list prior to the homeserver reactor firing up ([\#4081](https://github.com/matrix-org/synapse/issues/4081))
- Fix bug which prevented backslashes being used in event field filters ([\#4083](https://github.com/matrix-org/synapse/issues/4083))
Internal Changes
----------------
- Add information about the [matrix-docker-ansible-deploy](https://github.com/spantaleev/matrix-docker-ansible-deploy) playbook ([\#3698](https://github.com/matrix-org/synapse/issues/3698))
- Add initial implementation of new state resolution algorithm ([\#3786](https://github.com/matrix-org/synapse/issues/3786))
- Reduce database load when fetching state groups ([\#4011](https://github.com/matrix-org/synapse/issues/4011))
- Various cleanups in the federation client code ([\#4031](https://github.com/matrix-org/synapse/issues/4031))
- Run the CircleCI builds in docker containers ([\#4041](https://github.com/matrix-org/synapse/issues/4041))
- Only colourise synctl output when attached to tty ([\#4049](https://github.com/matrix-org/synapse/issues/4049))
- Refactor room alias creation code ([\#4063](https://github.com/matrix-org/synapse/issues/4063))
- Make the Python scripts in the top-level scripts folders meet pep8 and pass flake8. ([\#4068](https://github.com/matrix-org/synapse/issues/4068))
- The README now contains example for the Caddy web server. Contributed by steamp0rt. ([\#4072](https://github.com/matrix-org/synapse/issues/4072))
- Add psutil as an explicit dependency ([\#4073](https://github.com/matrix-org/synapse/issues/4073))
- Clean up threading and logcontexts in pushers ([\#4075](https://github.com/matrix-org/synapse/issues/4075))
- Correctly manage logcontexts during startup to fix some "Unexpected logging context" warnings ([\#4076](https://github.com/matrix-org/synapse/issues/4076))
- Give some more things logcontexts ([\#4077](https://github.com/matrix-org/synapse/issues/4077))
- Clean up some bits of code which were flagged by the linter ([\#4082](https://github.com/matrix-org/synapse/issues/4082))
- Adding the ability to change MAX_UPLOAD_SIZE for the docker container variables. ([\#3883](https://github.com/matrix-org/synapse/issues/3883))
- Report "python_version" in the phone home stats ([\#3894](https://github.com/matrix-org/synapse/issues/3894))
- Always LL ourselves if we're in a room ([\#3916](https://github.com/matrix-org/synapse/issues/3916))
- Include eventid in log lines when processing incoming federation transactions ([\#3959](https://github.com/matrix-org/synapse/issues/3959))
- Remove spurious check which made 'localhost' servers not work ([\#3964](https://github.com/matrix-org/synapse/issues/3964))
Bugfixes
--------
- Fix problem when playing media from Chrome using direct URL (thanks @remjey!) ([\#3578](https://github.com/matrix-org/synapse/issues/3578))
- support registering regular users non-interactively with register_new_matrix_user script ([\#3836](https://github.com/matrix-org/synapse/issues/3836))
- Fix 500 error when deleting unknown room alias ([\#3889](https://github.com/matrix-org/synapse/issues/3889))
- Fix some b'abcd' noise in logs and metrics ([\#3892](https://github.com/matrix-org/synapse/issues/3892), [\#3895](https://github.com/matrix-org/synapse/issues/3895))
- When we join a room, always try the server we used for the alias lookup first, to avoid unresponsive and out-of-date servers. ([\#3899](https://github.com/matrix-org/synapse/issues/3899))
- Fix incorrect server-name indication for outgoing federation requests ([\#3907](https://github.com/matrix-org/synapse/issues/3907))
- Fix adding client IPs to the database failing on Python 3. ([\#3908](https://github.com/matrix-org/synapse/issues/3908))
- Fix bug where things occaisonally were not being timed out correctly. ([\#3910](https://github.com/matrix-org/synapse/issues/3910))
- Fix bug where outbound federation would stop talking to some servers when using workers ([\#3914](https://github.com/matrix-org/synapse/issues/3914))
- Fix some instances of ExpiringCache not expiring cache items ([\#3932](https://github.com/matrix-org/synapse/issues/3932), [\#3980](https://github.com/matrix-org/synapse/issues/3980))
- Fix out-of-bounds error when LLing yourself ([\#3936](https://github.com/matrix-org/synapse/issues/3936))
- Sending server notices regarding user consent now works on Python 3. ([\#3938](https://github.com/matrix-org/synapse/issues/3938))
- Fix exceptions from metrics handler ([\#3956](https://github.com/matrix-org/synapse/issues/3956))
- Fix error message for events with m.room.create missing from auth_events ([\#3960](https://github.com/matrix-org/synapse/issues/3960))
- Fix errors due to concurrent monthly_active_user upserts ([\#3961](https://github.com/matrix-org/synapse/issues/3961))
- Fix exceptions when processing incoming events over federation ([\#3968](https://github.com/matrix-org/synapse/issues/3968))
- Replaced all occurences of e.message with str(e). Contributed by Schnuffle ([\#3970](https://github.com/matrix-org/synapse/issues/3970))
- Fix lazy loaded sync in the presence of rejected state events ([\#3986](https://github.com/matrix-org/synapse/issues/3986))
- Fix error when logging incomplete HTTP requests ([\#3990](https://github.com/matrix-org/synapse/issues/3990))
- Remove documentation regarding installation on Cygwin, the use of WSL is recommended instead. ([\#3873](https://github.com/matrix-org/synapse/issues/3873))
- Fix typo in README, synaspse -> synapse ([\#3897](https://github.com/matrix-org/synapse/issues/3897))
- Increase the timeout when filling missing events in federation requests ([\#3903](https://github.com/matrix-org/synapse/issues/3903))
- Improve the logging when handling a federation transaction ([\#3904](https://github.com/matrix-org/synapse/issues/3904), [\#3966](https://github.com/matrix-org/synapse/issues/3966))
- Improve logging of outbound federation requests ([\#3906](https://github.com/matrix-org/synapse/issues/3906), [\#3909](https://github.com/matrix-org/synapse/issues/3909))
- Fix the docker image building on python 3 ([\#3911](https://github.com/matrix-org/synapse/issues/3911))
- Add a regression test for logging failed HTTP requests on Python 3. ([\#3912](https://github.com/matrix-org/synapse/issues/3912))
- Comments and interface cleanup for on_receive_pdu ([\#3924](https://github.com/matrix-org/synapse/issues/3924))
- Add a cache to get_destination_retry_timings ([\#3933](https://github.com/matrix-org/synapse/issues/3933), [\#3991](https://github.com/matrix-org/synapse/issues/3991))
- Automate pushes to docker hub ([\#3946](https://github.com/matrix-org/synapse/issues/3946))
- Require attrs 16.0.0 or later ([\#3947](https://github.com/matrix-org/synapse/issues/3947))
- Fix incompatibility with python3 on alpine ([\#3948](https://github.com/matrix-org/synapse/issues/3948))
- Run the test suite on the oldest supported versions of our dependencies in CI. ([\#3952](https://github.com/matrix-org/synapse/issues/3952))
- CircleCI now only runs merged jobs on PRs, and commit jobs on develop, master, and release branches. ([\#3957](https://github.com/matrix-org/synapse/issues/3957))
- Fix docstrings and add tests for state store methods ([\#3958](https://github.com/matrix-org/synapse/issues/3958))
- fix docstring for FederationClient.get_state_for_room ([\#3963](https://github.com/matrix-org/synapse/issues/3963))
- Run notify_app_services as a bg process ([\#3965](https://github.com/matrix-org/synapse/issues/3965))
- Clarifications in FederationHandler ([\#3967](https://github.com/matrix-org/synapse/issues/3967))
- Further reduce the docker image size ([\#3972](https://github.com/matrix-org/synapse/issues/3972))
- Build py3 docker images for docker hub too ([\#3976](https://github.com/matrix-org/synapse/issues/3976))
- Updated the installation instructions to point to the matrix-synapse package on PyPI. ([\#3985](https://github.com/matrix-org/synapse/issues/3985))
- Disable USE_FROZEN_DICTS for unittests by default. ([\#3987](https://github.com/matrix-org/synapse/issues/3987))
- Remove unused Jenkins and development related files from the repo. ([\#3988](https://github.com/matrix-org/synapse/issues/3988))
- Improve stacktraces in certain exceptions in the logs ([\#3989](https://github.com/matrix-org/synapse/issues/3989))
- Python 3.5 and 3.6 support is now in beta. ([\#3576](https://github.com/matrix-org/synapse/issues/3576))
- Implement `event_format` filter param in `/sync` ([\#3790](https://github.com/matrix-org/synapse/issues/3790))
- Add synapse_admin_mau:registered_reserved_users metric to expose number of real reaserved users ([\#3846](https://github.com/matrix-org/synapse/issues/3846))
Bugfixes
--------
- Remove connection ID for replication prometheus metrics, as it creates a large number of new series. ([\#3788](https://github.com/matrix-org/synapse/issues/3788))
- guest users should not be part of mau total ([\#3800](https://github.com/matrix-org/synapse/issues/3800))
- Bump dependency on pyopenssl 16.x, to avoid incompatibility with recent Twisted. ([\#3804](https://github.com/matrix-org/synapse/issues/3804))
- Fix existing room tags not coming down sync when joining a room ([\#3810](https://github.com/matrix-org/synapse/issues/3810))
- fix VOIP crashes under Python 3 (#3821) ([\#3835](https://github.com/matrix-org/synapse/issues/3835))
- Fix manhole so that it works with latest openssh clients ([\#3841](https://github.com/matrix-org/synapse/issues/3841))
- Fix outbound requests occasionally wedging, which can result in federation breaking between servers. ([\#3845](https://github.com/matrix-org/synapse/issues/3845))
- Show heroes if room name/canonical alias has been deleted ([\#3851](https://github.com/matrix-org/synapse/issues/3851))
- Fix handling of redacted events from federation ([\#3859](https://github.com/matrix-org/synapse/issues/3859))
- CircleCI tests now run on the potential merge of a PR. ([\#3704](https://github.com/matrix-org/synapse/issues/3704))
- http/ is now ported to Python 3. ([\#3771](https://github.com/matrix-org/synapse/issues/3771))
- Improve human readable error messages for threepid registration/account update ([\#3789](https://github.com/matrix-org/synapse/issues/3789))
- Make /sync slightly faster by avoiding needless copies ([\#3795](https://github.com/matrix-org/synapse/issues/3795))
- handlers/ is now ported to Python 3. ([\#3803](https://github.com/matrix-org/synapse/issues/3803))
- Limit the number of PDUs/EDUs per federation transaction ([\#3805](https://github.com/matrix-org/synapse/issues/3805))
- Only start postgres instance for postgres tests on Travis CI ([\#3806](https://github.com/matrix-org/synapse/issues/3806))
- tests/ is now ported to Python 3. ([\#3808](https://github.com/matrix-org/synapse/issues/3808))
- crypto/ is now ported to Python 3. ([\#3822](https://github.com/matrix-org/synapse/issues/3822))
- rest/ is now ported to Python 3. ([\#3823](https://github.com/matrix-org/synapse/issues/3823))
- add some logging for the keyring queue ([\#3826](https://github.com/matrix-org/synapse/issues/3826))
- speed up lazy loading by 2-3x ([\#3827](https://github.com/matrix-org/synapse/issues/3827))
- Improved Dockerfile to remove build requirements after building reducing the image size. ([\#3834](https://github.com/matrix-org/synapse/issues/3834))
- Disable lazy loading for incremental syncs for now ([\#3840](https://github.com/matrix-org/synapse/issues/3840))
- federation/ is now ported to Python 3. ([\#3847](https://github.com/matrix-org/synapse/issues/3847))
- Log when we retry outbound requests ([\#3853](https://github.com/matrix-org/synapse/issues/3853))
- Removed some excess logging messages. ([\#3855](https://github.com/matrix-org/synapse/issues/3855))
- Speed up purge history for rooms that have been previously purged ([\#3856](https://github.com/matrix-org/synapse/issues/3856))
- Refactor some HTTP timeout code. ([\#3857](https://github.com/matrix-org/synapse/issues/3857))
- Fix running merged builds on CircleCI ([\#3858](https://github.com/matrix-org/synapse/issues/3858))
- Fix typo in replication stream exception. ([\#3860](https://github.com/matrix-org/synapse/issues/3860))
- Add in flight real time metrics for Measure blocks ([\#3871](https://github.com/matrix-org/synapse/issues/3871))
- Disable buffering and automatic retrying in treq requests to prevent timeouts. ([\#3872](https://github.com/matrix-org/synapse/issues/3872))
- mention jemalloc in the README ([\#3877](https://github.com/matrix-org/synapse/issues/3877))
- Support profile API endpoints on workers ([\#3659](https://github.com/matrix-org/synapse/issues/3659))
- Server notices for resource limit blocking ([\#3680](https://github.com/matrix-org/synapse/issues/3680))
- Allow guests to use /rooms/:roomId/event/:eventId ([\#3724](https://github.com/matrix-org/synapse/issues/3724))
- Add mau_trial_days config param, so that users only get counted as MAU after N days. ([\#3749](https://github.com/matrix-org/synapse/issues/3749))
- Require twisted 17.1 or later (fixes [#3741](https://github.com/matrix-org/synapse/issues/3741)). ([\#3751](https://github.com/matrix-org/synapse/issues/3751))
Bugfixes
--------
- Fix error collecting prometheus metrics when run on dedicated thread due to threading concurrency issues ([\#3722](https://github.com/matrix-org/synapse/issues/3722))
- Fix bug where we resent "limit exceeded" server notices repeatedly ([\#3747](https://github.com/matrix-org/synapse/issues/3747))
- Fix bug where we broke sync when using limit_usage_by_mau but hadn't configured server notices ([\#3753](https://github.com/matrix-org/synapse/issues/3753))
- Fix 'federation_domain_whitelist' such that an empty list correctly blocks all outbound federation traffic ([\#3754](https://github.com/matrix-org/synapse/issues/3754))
- Fix tagging of server notice rooms ([\#3755](https://github.com/matrix-org/synapse/issues/3755), [\#3756](https://github.com/matrix-org/synapse/issues/3756))
- Fix 'admin_uri' config variable and error parameter to be 'admin_contact' to match the spec. ([\#3758](https://github.com/matrix-org/synapse/issues/3758))
- Don't return non-LL-member state in incremental sync state blocks ([\#3760](https://github.com/matrix-org/synapse/issues/3760))
- Fix bug in sending presence over federation ([\#3768](https://github.com/matrix-org/synapse/issues/3768))
- Fix bug where preserved threepid user comes to sign up and server is mau blocked ([\#3777](https://github.com/matrix-org/synapse/issues/3777))
Internal Changes
----------------
- Removed the link to the unmaintained matrix-synapse-auto-deploy project from the readme. ([\#3378](https://github.com/matrix-org/synapse/issues/3378))
- Refactor state module to support multiple room versions ([\#3673](https://github.com/matrix-org/synapse/issues/3673))
- The synapse.storage module has been ported to Python 3. ([\#3725](https://github.com/matrix-org/synapse/issues/3725))
- Split the state_group_cache into member and non-member state events (and so speed up LL /sync) ([\#3726](https://github.com/matrix-org/synapse/issues/3726))
- Log failure to authenticate remote servers as warnings (without stack traces) ([\#3727](https://github.com/matrix-org/synapse/issues/3727))
- The CONTRIBUTING guidelines have been updated to mention our use of Markdown and that .misc files have content. ([\#3730](https://github.com/matrix-org/synapse/issues/3730))
- Reference the need for an HTTP replication port when using the federation_reader worker ([\#3734](https://github.com/matrix-org/synapse/issues/3734))
- Fix minor spelling error in federation client documentation. ([\#3735](https://github.com/matrix-org/synapse/issues/3735))
- Remove redundant state resolution function ([\#3737](https://github.com/matrix-org/synapse/issues/3737))
- The test suite now passes on PostgreSQL. ([\#3740](https://github.com/matrix-org/synapse/issues/3740))
- Fix MAU cache invalidation due to missing yield ([\#3746](https://github.com/matrix-org/synapse/issues/3746))
- Make sure that we close db connections opened during init ([\#3764](https://github.com/matrix-org/synapse/issues/3764))
- speed up /members API and add `at` and `membership` params as per MSC1227 ([\#3568](https://github.com/matrix-org/synapse/issues/3568))
- implement `summary` block in /sync response as per MSC688 ([\#3574](https://github.com/matrix-org/synapse/issues/3574))
- Add lazy-loading support to /messages as per MSC1227 ([\#3589](https://github.com/matrix-org/synapse/issues/3589))
- Add ability to limit number of monthly active users on the server ([\#3633](https://github.com/matrix-org/synapse/issues/3633))
- Support more federation endpoints on workers ([\#3653](https://github.com/matrix-org/synapse/issues/3653))
- Basic support for room versioning ([\#3654](https://github.com/matrix-org/synapse/issues/3654))
- Ability to disable client/server Synapse via conf toggle ([\#3655](https://github.com/matrix-org/synapse/issues/3655))
- Ability to whitelist specific threepids against monthly active user limiting ([\#3662](https://github.com/matrix-org/synapse/issues/3662))
- Add some metrics for the appservice and federation event sending loops ([\#3664](https://github.com/matrix-org/synapse/issues/3664))
- Where server is disabled, block ability for locked out users to read new messages ([\#3670](https://github.com/matrix-org/synapse/issues/3670))
- set admin uri via config, to be used in error messages where the user should contact the administrator ([\#3687](https://github.com/matrix-org/synapse/issues/3687))
- Synapse's presence functionality can now be disabled with the "use_presence" configuration option. ([\#3694](https://github.com/matrix-org/synapse/issues/3694))
- For resource limit blocked users, prevent writing into rooms ([\#3708](https://github.com/matrix-org/synapse/issues/3708))
Bugfixes
--------
- Fix occasional glitches in the synapse_event_persisted_position metric ([\#3658](https://github.com/matrix-org/synapse/issues/3658))
- Fix bug on deleting 3pid when using identity servers that don't support unbind API ([\#3661](https://github.com/matrix-org/synapse/issues/3661))
- Make the tests pass on Twisted <18.7.0([\#3676](https://github.com/matrix-org/synapse/issues/3676))
- Don’t ship recaptcha_ajax.js, use it directly from Google ([\#3677](https://github.com/matrix-org/synapse/issues/3677))
- Fixes test_reap_monthly_active_users so it passes under postgres ([\#3681](https://github.com/matrix-org/synapse/issues/3681))
- Fix mau blocking calulation bug on login ([\#3689](https://github.com/matrix-org/synapse/issues/3689))
- Fix missing yield in synapse.storage.monthly_active_users.initialise_reserved_users ([\#3692](https://github.com/matrix-org/synapse/issues/3692))
- Improve HTTP request logging to include all requests ([\#3700](https://github.com/matrix-org/synapse/issues/3700))
- Avoid timing out requests while we are streaming back the response ([\#3701](https://github.com/matrix-org/synapse/issues/3701))
- Support more federation endpoints on workers ([\#3705](https://github.com/matrix-org/synapse/issues/3705), [\#3713](https://github.com/matrix-org/synapse/issues/3713))
- Fix "Starting db txn 'get_all_updated_receipts' from sentinel context" warning ([\#3710](https://github.com/matrix-org/synapse/issues/3710))
- The Shared-Secret registration method of the legacy v1/register REST endpoint has been removed. For a replacement, please see [the admin/register API documentation](https://github.com/matrix-org/synapse/blob/master/docs/admin_api/register_api.rst). ([\#3703](https://github.com/matrix-org/synapse/issues/3703))
Internal Changes
----------------
- The test suite now can run under PostgreSQL. ([\#3423](https://github.com/matrix-org/synapse/issues/3423))
- Refactor HTTP replication endpoints to reduce code duplication ([\#3632](https://github.com/matrix-org/synapse/issues/3632))
- Tests now correctly execute on Python 3. ([\#3647](https://github.com/matrix-org/synapse/issues/3647))
- Sytests can now be run inside a Docker container. ([\#3660](https://github.com/matrix-org/synapse/issues/3660))
- Port over enough to Python 3 to allow the sytests to start. ([\#3668](https://github.com/matrix-org/synapse/issues/3668))
- Update docker base image from alpine 3.7 to 3.8. ([\#3669](https://github.com/matrix-org/synapse/issues/3669))
- Rename synapse.util.async to synapse.util.async_helpers to mitigate async becoming a keyword on Python 3.7. ([\#3678](https://github.com/matrix-org/synapse/issues/3678))
- Synapse's tests are now formatted with the black autoformatter. ([\#3679](https://github.com/matrix-org/synapse/issues/3679))
- Implemented a new testing base class to reduce test boilerplate. ([\#3684](https://github.com/matrix-org/synapse/issues/3684))
- Rename MAU prometheus metrics ([\#3690](https://github.com/matrix-org/synapse/issues/3690))
- add new error type ResourceLimit ([\#3707](https://github.com/matrix-org/synapse/issues/3707))
- Logcontexts for replication command handlers ([\#3709](https://github.com/matrix-org/synapse/issues/3709))
- Update admin register API documentation to reference a real user ID. ([\#3712](https://github.com/matrix-org/synapse/issues/3712))
- 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))
- Add a new /admin/register API for non-interactively creating users. ([\#3415](https://github.com/matrix-org/synapse/issues/3415))
- Make /directory/list API return 404 for room not found instead of 400. Thanks to @fuzzmz! ([\#3620](https://github.com/matrix-org/synapse/issues/3620))
- 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))
- Rewrite cache list decorator ([\#3384](https://github.com/matrix-org/synapse/issues/3384))
- Move v1-only REST APIs into their own module. ([\#3460](https://github.com/matrix-org/synapse/issues/3460))
- Replace more instances of Python 2-only iteritems and itervalues uses. ([\#3562](https://github.com/matrix-org/synapse/issues/3562))
- Refactor EventContext to accept state during init ([\#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))
- Fix a potential issue where servers could request events for rooms they have not joined. ([\#3641](https://github.com/matrix-org/synapse/issues/3641))
- Fix a potential issue where users could see events in private rooms before they joined. ([\#3642](https://github.com/matrix-org/synapse/issues/3642))
- Include CPU time from database threads in request/block metrics. ([\#3496](https://github.com/matrix-org/synapse/issues/3496), [\#3501](https://github.com/matrix-org/synapse/issues/3501))
- Fix a significant performance regression in /sync. ([\#3505](https://github.com/matrix-org/synapse/issues/3505), [\#3521](https://github.com/matrix-org/synapse/issues/3521), [\#3530](https://github.com/matrix-org/synapse/issues/3530), [\#3544](https://github.com/matrix-org/synapse/issues/3544))
- Use more portable syntax in our use of the attrs package, widening the supported versions. ([\#3498](https://github.com/matrix-org/synapse/issues/3498))
- Fix queued federation requests being processed in the wrong order. ([\#3533](https://github.com/matrix-org/synapse/issues/3533))
- Ensure that erasure requests are correctly honoured for publicly accessible rooms when accessed over federation. ([\#3546](https://github.com/matrix-org/synapse/issues/3546))
- Refactoring to improve testability. ([\#3351](https://github.com/matrix-org/synapse/issues/3351), [\#3499](https://github.com/matrix-org/synapse/issues/3499))
- Use `isort` to sort imports. ([\#3463](https://github.com/matrix-org/synapse/issues/3463), [\#3464](https://github.com/matrix-org/synapse/issues/3464), [\#3540](https://github.com/matrix-org/synapse/issues/3540))
- Use parse and asserts from http.servlet. ([\#3534](https://github.com/matrix-org/synapse/issues/3534), [\#3535](https://github.com/matrix-org/synapse/issues/3535)).
- Amend the Python dependencies to depend on attrs from PyPI, not attr ([\#3492](https://github.com/matrix-org/synapse/issues/3492))
Synapse 0.32.1 (2018-07-06)
===========================
Bugfixes
--------
- Add explicit dependency on netaddr ([\#3488](https://github.com/matrix-org/synapse/issues/3488))
Changes in synapse v0.32.0 (2018-07-06)
=======================================
No changes since 0.32.0rc1
Synapse 0.32.0rc1 (2018-07-05)
==============================
Features
--------
- Add blacklist & whitelist of servers allowed to send events to a room via `m.room.server_acl` event.
- Cache factor override system for specific caches ([\#3334](https://github.com/matrix-org/synapse/issues/3334))
- Add metrics to track appservice transactions ([\#3344](https://github.com/matrix-org/synapse/issues/3344))
- Try to log more helpful info when a sig verification fails ([\#3372](https://github.com/matrix-org/synapse/issues/3372))
- Synapse now uses the best performing JSON encoder/decoder according to your runtime (simplejson on CPython, stdlib json on PyPy). ([\#3462](https://github.com/matrix-org/synapse/issues/3462))
- Add optional ip\_range\_whitelist param to AS registration files to lock AS IP access ([\#3465](https://github.com/matrix-org/synapse/issues/3465))
- Reject invalid server names in federation requests ([\#3480](https://github.com/matrix-org/synapse/issues/3480))
- Reject invalid server names in homeserver.yaml ([\#3483](https://github.com/matrix-org/synapse/issues/3483))
Bugfixes
--------
- Strip access\_token from outgoing requests ([\#3327](https://github.com/matrix-org/synapse/issues/3327))
- Redact AS tokens in logs ([\#3349](https://github.com/matrix-org/synapse/issues/3349))
- Fix federation backfill from SQLite servers ([\#3355](https://github.com/matrix-org/synapse/issues/3355))
- Fix event-purge-by-ts admin API ([\#3363](https://github.com/matrix-org/synapse/issues/3363))
- Fix event filtering in get\_missing\_events handler ([\#3371](https://github.com/matrix-org/synapse/issues/3371))
- Synapse is now stricter regarding accepting events which it cannot retrieve the prev\_events for. ([\#3456](https://github.com/matrix-org/synapse/issues/3456))
- Fix bug where synapse would explode when receiving unicode in HTTP User-Agent header ([\#3470](https://github.com/matrix-org/synapse/issues/3470))
- Invalidate cache on correct thread to avoid race ([\#3473](https://github.com/matrix-org/synapse/issues/3473))
SECURITY UPDATE: Prevent unauthorised users from setting state events in a room when there is no `m.room.power_levels` event in force in the room. (PR #3397)
Most notable change from v0.30.0 is to switch to the python prometheus library to improve system stats reporting. WARNING: this changes a number of prometheus metrics in a backwards-incompatible manner. For more details, see [docs/metrics-howto.rst](docs/metrics-howto.rst#removal-of-deprecated-metrics--time-based-counters-becoming-histograms-in-0310).
\'Server Notices\' are a new feature introduced in Synapse 0.30. They provide a channel whereby server administrators can send messages to users on the server.
They are used as part of communication of the server policies (see `docs/consent_tracking.md`), however the intention is that they may also find a use for features such as \"Message of the day\".
This feature is specific to Synapse, but uses standard Matrix communication mechanisms, so should work with any Matrix client. For more details see `docs/server_notices.md`
Notable changes, a docker file for running Synapse (Thanks to @kaiyou!) and a closed spec bug in the Client Server API. Additionally further prep for Python 3 migration.
This changes the Client-server spec to return a 401 error code instead of 403 when the access token is unrecognised. This is the behaviour required by the specification, but some clients may be relying on the old, incorrect behaviour.
- Clamp the allowed values of event depth received over federation to be \[0, 2\^63 - 1\]. This mitigates an attack where malicious events injected with depth = 2\^63 - 1 render rooms unusable. Depth is used to determine the cosmetic ordering of events within a room, and so the ordering of events in such a room will default to using stream\_ordering rather than depth (topological\_ordering).
This is a temporary solution to mitigate abuse in the wild, whilst a long term solution is being implemented to improve how the depth parameter is used.
Full details at <https://docs.google.com/document/d/1I3fi2S-XnpO45qrpCsowZv8P8dHcNZ4fsBsbOW7KABI>
- Pin Twisted to \<18.4 until we stop using the private \_OpenSSLECCurve API.
v0.27.3-rc1 used a stale version of the develop branch so the changelog overstates the functionality. v0.27.3-rc2 is up to date, rc1 should be ignored.
Notable changes include API support for joinability of groups. Also new metrics and phone home stats. Phone home stats include better visibility of system usage so we can tweak synpase to work better for all users rather than our own experience with matrix.org. Also, recording \'r30\' stat which is the measure we use to track overal growth of the Matrix ecosystem. It is defined as:-
Counts the number of native 30 day retained users, defined as:- \* Users who have created their accounts more than 30 days
: - Where last seen at most 30 days ago
- Where account creation and last\_seen are \> 30 days\"
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.
- 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!
Explicitly require authentication when using LDAP3. This is the default on versions of `ldap3` above 1.0, but some distributions will package an older version.
If you are using LDAP3 login and have a version of `ldap3` older than 1.0 it is **CRITICAL to updgrade**.
The release includes major changes to the state storage database schemas, which significantly reduce database size. Synapse will attempt to upgrade the current data in the background. Servers with large SQLite database may experience degradation of performance while this upgrade is in progress, therefore you may want to consider migrating to using Postgres before upgrading very large SQLite databases
- Bump matrix-angular-sdk (matrix web console) dependency to 0.6.8 to pull in the fix for SYWEB-361 so that the default client can display HTML messages again(!)
Changes in synapse v0.13.0 (2016-02-10)
=======================================
This version includes an upgrade of the schema, specifically adding an index to the `events` table. This may cause synapse to pause for several minutes the first time it is started after the upgrade.
- Allow guest accounts access to `/sync` (PR #455)
- Allow filters to include/exclude rooms at the room level rather than just from the components of the sync for each room. (PR #454)
- Include urls for room avatars in the response to `/publicRooms` (PR #453)
- Don\'t set a identicon as the avatar for a user when they register (PR #450)
- Add a `display_name` to third-party invites (PR #449)
- Send more information to the identity server for third-party invites so that it can send richer messages to the invitee (PR #446)
- Cache the responses to `/initialSync` for 5 minutes. If a client retries a request to `/initialSync` before the a response was computed to the first request then the same response is used for both requests (PR #457)
- Fix a bug where synapse would always request the signing keys of remote servers even when the key was cached locally (PR #452)
- Fix 500 when pagination search results (PR #447)
- Fix a bug where synapse was leaking raw email address in third-party invites (PR #448)
- Host the client APIs released as r0 by <https://matrix.org/docs/spec/r0.0.0/client_server.html> on paths prefixed by `/_matrix/client/r0`. (PR #430, PR #415, PR #400)
- All APIs return events in the new event format, old APIs also include the fields needed to parse the event using the old format for compatibility. (PR #402)
- Search results are now given as a JSON array rather than a JSON object (PR #405)
- Fix bug where we did not correctly cap federation retry timers. This meant it could take several hours for servers to start talking to ressurected servers, even when they were receiving traffic from them (PR #393)
- Don\'t advertise login token flow unless CAS is enabled. This caused issues where some clients would always use the fallback API if they did not recognize all login flows (PR #391)
- Change /v2 sync API to rename `private_user_data` to `account_data` (PR #386)
- Change /v2 sync API to remove the `event_map` and rename keys in `rooms` object (PR #389)
- Add `--keys-directory` config option to specify where files such as certs and signing keys should be stored in, when using `--generate-config` or `--generate-keys`. (PR #250)
- Allow `--config-path` to specify a directory, causing synapse to use all \*.yaml files in the directory as config files. (PR #249)
- Add `web_client_location` config option to specify static files to be hosted by synapse under `/_matrix/client`. (PR #245)
- Fix bug where we incorrectly populated the `event_forward_extremities` table, resulting in problems joining large remote rooms (e.g. `#matrix:matrix.org`)
- Reduce the number of times we wake up pushers by not listening for presence or typing events, reducing the CPU cost of each pusher.
Changes in synapse v0.10.0-rc1 (2015-08-21)
===========================================
Also see v0.9.4-rc1 changelog, which has been amalgamated into this release.
- Change synapse to treat user IDs case insensitively during registration and login. (If two users already exist with case insensitive matching user ids, synapse will continue to require them to specify their user ids exactly.)
- Add `--generate-keys` that will generate any missing cert and key files in the configuration files. This is equivalent to running `--generate-config` on an existing configuration file. (PR #220)
-`--generate-config` now no longer requires a `--server-name` parameter when used on existing configuration files. (PR #220)
- Add `--print-pidfile` flag that controls the printing of the pid to stdout of the demonised process. (PR #213)
- Add support for including TLS certificate chains.
Media Repository:
- Add Content-Disposition headers to content repository responses. (SYN-150)
Changes in synapse v0.9.3 (2015-07-01)
======================================
No changes from v0.9.3 Release Candidate 1.
Changes in synapse v0.9.3-rc1 (2015-06-23)
==========================================
General:
- Fix a memory leak in the notifier. (SYN-412)
- Improve performance of room initial sync. (SYN-418)
- General improvements to logging.
- Remove `access_token` query params from `INFO` level logging.
Configuration:
- Add support for specifying and configuring multiple listeners. (SYN-389)
Application services:
- Fix bug where synapse failed to send user queries to application services.
Changes in synapse v0.9.2-r2 (2015-06-15)
=========================================
Fix packaging so that schema delta python files get included in the package.
Changes in synapse v0.9.2 (2015-06-12)
======================================
General:
- Use ultrajson for json (de)serialisation when a canonical encoding is not required. Ultrajson is significantly faster than simplejson in certain circumstances.
- Use connection pools for outgoing HTTP connections.
- Process thumbnails on separate threads.
Configuration:
- Add option, `gzip_responses`, to disable HTTP response compression.
Federation:
- Improve resilience of backfill by ensuring we fetch any missing auth events.
- Improve performance of backfill and joining remote rooms by removing unnecessary computations. This included handling events we\'d previously handled as well as attempting to compute the current state for outliers.
Changes in synapse v0.9.1 (2015-05-26)
======================================
General:
- Add support for backfilling when a client paginates. This allows servers to request history for a room from remote servers when a client tries to paginate history the server does not have - SYN-36
- Fix bug where you couldn\'t disable non-default pushrules - SYN-378
- Fix `register_new_user` script - SYN-359
- Improve performance of fetching events from the database, this improves both initialSync and sending of events.
- Improve performance of event streams, allowing synapse to handle more simultaneous connected clients.
Federation:
- Fix bug with existing backfill implementation where it returned the wrong selection of events in some circumstances.
- Improve performance of joining remote rooms.
Configuration:
- Add support for changing the bind host of the metrics listener via the `metrics_bind_host` option.
Changes in synapse v0.9.0-r5 (2015-05-21)
=========================================
- Add more database caches to reduce amount of work done for each pusher. This radically reduces CPU usage when multiple pushers are set up in the same room.
Changes in synapse v0.9.0 (2015-05-07)
======================================
General:
- Add support for using a PostgreSQL database instead of SQLite. See [docs/postgres.rst](docs/postgres.rst) for details.
- Add password change and reset APIs. See [Registration](https://github.com/matrix-org/matrix-doc/blob/master/specification/10_client_server_api.rst#registration) in the spec.
- Fix memory leak due to not releasing stale notifiers - SYN-339.
- Fix race in caches that occasionally caused some presence updates to be dropped - SYN-369.
- Check server name has not changed on restart.
- Add a sample systemd unit file and a logger configuration in contrib/systemd. Contributed Ivan Shapovalov.
Federation:
- Add key distribution mechanisms for fetching public keys of unavailable remote home servers. See [Retrieving Server Keys](https://github.com/matrix-org/matrix-doc/blob/6f2698/specification/30_server_server_api.rst#retrieving-server-keys) in the spec.
Configuration:
- Add support for multiple config files.
- Add support for dictionaries in config files.
- Remove support for specifying config options on the command line, except for:
-`--daemonize` - Daemonize the home server.
-`--manhole` - Turn on the twisted telnet manhole service on the given port.
-`--database-path` - The path to a sqlite database to use.
-`--verbose` - The verbosity level.
-`--log-file` - File to log to.
-`--log-config` - Python logging config file.
-`--enable-registration` - Enable registration for new users.
Application services:
- Reliably retry sending of events from Synapse to application services, as per [Application Services](https://github.com/matrix-org/matrix-doc/blob/0c6bd9/specification/25_application_service_api.rst#home-server---application-service-api) spec.
- Application services can no longer register via the `/register` API, instead their configuration should be saved to a file and listed in the synapse `app_service_config_files` config option. The AS configuration file has the same format as the old `/register` request. See [docs/application\_services.rst](docs/application_services.rst) for more information.
Changes in synapse v0.8.1 (2015-03-18)
======================================
- Disable registration by default. New users can be added using the command `register_new_matrix_user` or by enabling registration in the config.
- Add metrics to synapse. To enable metrics use config options `enable_metrics` and `metrics_port`.
- Fix bug where banning only kicked the user.
Changes in synapse v0.8.0 (2015-03-06)
======================================
General:
- Add support for registration fallback. This is a page hosted on the server which allows a user to register for an account, regardless of what client they are using (e.g. mobile devices).
- Added new default push rules and made them configurable by clients:
- Suppress all notice messages.
- Notify when invited to a new room.
- Notify for messages that don\'t match any rule.
- Notify on incoming call.
Federation:
- Added per host server side rate-limiting of incoming federation requests.
- Added a `/get_missing_events/` API to federation to reduce number of `/events/` requests.
Configuration:
- Added configuration option to disable registration: `disable_registration`.
- Added configuration option to change soft limit of number of open file descriptors: `soft_file_limit`.
- Make `tls_private_key_path` optional when running with `no_tls`.
Application services:
- Application services can now poll on the CS API `/events` for their events, by providing their application service `access_token`.
- Added exclusive namespace support to application services API.
Changes in synapse v0.7.1 (2015-02-19)
======================================
- Initial alpha implementation of parts of the Application Services API. Including:
- AS Registration / Unregistration
- User Query API
- Room Alias Query API
- Push transport for receiving events.
- User/Alias namespace admin control
- Add cache when fetching events from remote servers to stop repeatedly fetching events with bad signatures.
- Respect the per remote server retry scheme when fetching both events and server keys to reduce the number of times we send requests to dead servers.
- Inform remote servers when the local server fails to handle a received event.
- Turn off python bytecode generation due to problems experienced when upgrading from previous versions.
Changes in synapse v0.7.0 (2015-02-12)
======================================
- Add initial implementation of the query auth federation API, allowing servers to agree on whether an event should be allowed or rejected.
- Persist events we have rejected from federation, fixing the bug where servers would keep requesting the same events.
- Various federation performance improvements, including:
- Add in memory caches on queries such as:
> - Computing the state of a room at a point in time, used for authorization on federation requests.
> - Fetching events from the database.
> - User\'s room membership, used for authorizing presence updates.
- Upgraded JSON library to improve parsing and serialisation speeds.
- Add default avatars to new user accounts using pydenticon library.
- Correctly time out federation requests.
- Retry federation requests against different servers.
- Add support for push and push rules.
- Add alpha versions of proposed new CSv2 APIs, including `/sync` API.
Changes in synapse 0.6.1 (2015-01-07)
=====================================
- Major optimizations to improve performance of initial sync and event sending in large rooms (by up to 10x)
- Media repository now includes a Content-Length header on media downloads.
- Improve quality of thumbnails by changing resizing algorithm.
Changes in synapse 0.6.0 (2014-12-16)
=====================================
- Add new API for media upload and download that supports thumbnailing.
- Replicate media uploads over multiple homeservers so media is always served to clients from their local homeserver. This obsoletes the \--content-addr parameter and confusion over accessing content directly from remote homeservers.
- Implement exponential backoff when retrying federation requests when sending to remote homeservers which are offline.
- Implement typing notifications.
- Fix bugs where we sent events with invalid signatures due to bugs where we incorrectly persisted events.
- Improve performance of database queries involving retrieving events.
Changes in synapse 0.5.4a (2014-12-13)
======================================
- Fix bug while generating the error message when a file path specified in the config doesn\'t exist.
Changes in synapse 0.5.4 (2014-12-03)
=====================================
- Fix presence bug where some rooms did not display presence updates for remote users.
- Do not log SQL timing log lines when started with \"-v\"
- Fix potential memory leak.
Changes in synapse 0.5.3c (2014-12-02)
======================================
- Change the default value for the content\_addr option to use the HTTP listener, as by default the HTTPS listener will be using a self-signed certificate.
Changes in synapse 0.5.3 (2014-11-27)
=====================================
- Fix bug that caused joining a remote room to fail if a single event was not signed correctly.
- Fix bug which caused servers to continuously try and fetch events from other servers.
Changes in synapse 0.5.2 (2014-11-26)
=====================================
Fix major bug that caused rooms to disappear from peoples initial sync.
Changes in synapse 0.5.1 (2014-11-26)
=====================================
See UPGRADES.rst for specific instructions on how to upgrade.
> - Fix bug where we served up an Event that did not match its signatures.
> - Fix regression where we no longer correctly handled the case where a homeserver receives an event for a room it doesn\'t recognise (but is in.)
Changes in synapse 0.5.0 (2014-11-19)
=====================================
This release includes changes to the federation protocol and client-server API that is not backwards compatible.
This release also changes the internal database schemas and so requires servers to drop their current history. See UPGRADES.rst for details.
Homeserver:
: - Add authentication and authorization to the federation protocol. Events are now signed by their originating homeservers.
- Implement the new authorization model for rooms.
- Split out web client into a seperate repository: matrix-angular-sdk.
- Change the structure of PDUs.
- Fix bug where user could not join rooms via an alias containing 4-byte UTF-8 characters.
- Merge concept of PDUs and Events internally.
- Improve logging by adding request ids to log lines.
- Implement a very basic room initial sync API.
- Implement the new invite/join federation APIs.
Webclient:
: - The webclient has been moved to a seperate repository.
Changes in synapse 0.4.2 (2014-10-31)
=====================================
Homeserver:
: - Fix bugs where we did not notify users of correct presence updates.
- Fix bug where we did not handle sub second event stream timeouts.
Webclient:
: - Add ability to click on messages to see JSON.
- Add ability to redact messages.
- Add ability to view and edit all room state JSON.
- Handle incoming redactions.
- Improve feedback on errors.
- Fix bugs in mobile CSS.
- Fix bugs with desktop notifications.
Changes in synapse 0.4.1 (2014-10-17)
=====================================
Webclient:
: - Fix bug with display of timestamps.
Changes in synpase 0.4.0 (2014-10-17)
=====================================
This release includes changes to the federation protocol and client-server API that is not backwards compatible.
The Matrix specification has been moved to a separate git repository: <http://github.com/matrix-org/matrix-doc>
You will also need an updated syutil and config. See UPGRADES.rst.
Homeserver:
: - Sign federation transactions to assert strong identity over federation.
- Rename timestamp keys in PDUs and events from \'ts\' and \'hsob\_ts\' to \'origin\_server\_ts\'.
Changes in synapse 0.3.4 (2014-09-25)
=====================================
This version adds support for using a TURN server. See docs/turn-howto.rst on how to set one up.
Homeserver:
: - Add support for redaction of messages.
- Fix bug where inviting a user on a remote home server could take up to 20-30s.
- Implement a get current room state API.
- Add support specifying and retrieving turn server configuration.
Webclient:
: - Add button to send messages to users from the home page.
- Add support for using TURN for VoIP calls.
- Show display name change messages.
- Fix bug where the client didn\'t get the state of a newly joined room until after it has been refreshed.
- Fix bugs with tab complete.
- Fix bug where holding down the down arrow caused chrome to chew 100% CPU.
- Fix bug where desktop notifications occasionally used \"Undefined\" as the display name.
- Fix more places where we sometimes saw room IDs incorrectly.
- Fix bug which caused lag when entering text in the text box.
Changes in synapse 0.3.3 (2014-09-22)
=====================================
Homeserver:
: - Fix bug where you continued to get events for rooms you had left.
Webclient:
: - Add support for video calls with basic UI.
- Fix bug where one to one chats were named after your display name rather than the other person\'s.
- Fix bug which caused lag when typing in the textarea.
- Refuse to run on browsers we know won\'t work.
- Trigger pagination when joining new rooms.
- Fix bug where we sometimes didn\'t display invitations in recents.
- Automatically join room when accepting a VoIP call.
- Disable outgoing and reject incoming calls on browsers we don\'t support VoIP in.
- Don\'t display desktop notifications for messages in the room you are non-idle and speaking in.
Changes in synapse 0.3.2 (2014-09-18)
=====================================
Webclient:
: - Fix bug where an empty \"bing words\" list in old accounts didn\'t send notifications when it should have done.
Changes in synapse 0.3.1 (2014-09-18)
=====================================
This is a release to hotfix v0.3.0 to fix two regressions.
Webclient:
: - Fix a regression where we sometimes displayed duplicate events.
- Fix a regression where we didn\'t immediately remove rooms you were banned in from the recents list.
Changes in synapse 0.3.0 (2014-09-18)
=====================================
See UPGRADE for information about changes to the client server API, including breaking backwards compatibility with VoIP calls and registration API.
Homeserver:
: - When a user changes their displayname or avatar the server will now update all their join states to reflect this.
- The server now adds \"age\" key to events to indicate how old they are. This is clock independent, so at no point does any server or webclient have to assume their clock is in sync with everyone else.
- Fix bug where we didn\'t correctly pull in missing PDUs.
- Fix bug where prev\_content key wasn\'t always returned.
- Add support for password resets.
Webclient:
: - Improve page content loading.
- Join/parts now trigger desktop notifications.
- Always show room aliases in the UI if one is present.
- No longer show user-count in the recents side panel.
- Add up & down arrow support to the text box for message sending to step through your sent history.
- Don\'t display notifications for our own messages.
- Emotes are now formatted correctly in desktop notifications.
- The recents list now differentiates between public & private rooms.
- Fix bug where when switching between rooms the pagination flickered before the view jumped to the bottom of the screen.
- Add bing word support.
Registration API:
: - The registration API has been overhauled to function like the login API. In practice, this means registration requests must now include the following: \'type\':\'m.login.password\'. See UPGRADE for more information on this.
- The \'user\_id\' key has been renamed to \'user\' to better match the login API.
- There is an additional login type: \'m.login.email.identity\'.
- The command client and web client have been updated to reflect these changes.
Changes in synapse 0.2.3 (2014-09-12)
=====================================
Homeserver:
: - Fix bug where we stopped sending events to remote home servers if a user from that home server left, even if there were some still in the room.
- Fix bugs in the state conflict resolution where it was incorrectly rejecting events.
Webclient:
: - Display room names and topics.
- Allow setting/editing of room names and topics.
- Display information about rooms on the main page.
- Handle ban and kick events in real time.
- VoIP UI and reliability improvements.
- Add glare support for VoIP.
- Improvements to initial startup speed.
- Don\'t display duplicate join events.
- Local echo of messages.
- Differentiate sending and sent of local echo.
- Various minor bug fixes.
Changes in synapse 0.2.2 (2014-09-06)
=====================================
Homeserver:
: - When the server returns state events it now also includes the previous content.
- Add support for inviting people when creating a new room.
- Make the homeserver inform the room via m.room.aliases when a new alias is added for a room.
- Validate m.room.power\_level events.
Webclient:
: - Add support for captchas on registration.
- Handle m.room.aliases events.
- Asynchronously send messages and show a local echo.
- Inform the UI when a message failed to send.
- Only autoscroll on receiving a new message if the user was already at the bottom of the screen.
- Add support for ban/kick reasons.
Changes in synapse 0.2.1 (2014-09-03)
=====================================
Homeserver:
: - Added support for signing up with a third party id.
- Add synctl scripts.
- Added rate limiting.
- Add option to change the external address the content repo uses.
- Presence bug fixes.
Webclient:
: - Added support for signing up with a third party id.
- Added support for banning and kicking users.
- Added support for displaying and setting ops.
- Added support for room names.
- Fix bugs with room membership event display.
Changes in synapse 0.2.0 (2014-09-02)
=====================================
This update changes many configuration options, updates the database schema and mandates SSL for server-server connections.
Homeserver:
: - Require SSL for server-server connections.
- Add SSL listener for client-server connections.
- Add ability to use config files.
- Add support for kicking/banning and power levels.
- Allow setting of room names and topics on creation.
- Change presence to include last seen time of the user.
- Change url path prefix to /\_matrix/\...
- Bug fixes to presence.
Webclient:
: - Reskin the CSS for registration and login.
- Various improvements to rooms CSS.
- Support changes in client-server API.
- Bug fixes to VOIP UI.
- Various bug fixes to handling of changes to room member list.
Changes in synapse 0.1.2 (2014-08-29)
=====================================
Webclient:
: - Add basic call state UI for VoIP calls.
Changes in synapse 0.1.1 (2014-08-29)
=====================================
Homeserver:
: - Fix bug that caused the event stream to not notify some clients about changes.
