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**WARNING**: As of this release, Synapse no longer supports versions of SQLite before 3.11, and will refuse to start when configured to use an older version. Administrators are recommended to migrate their database to Postgres (see instructions [here](docs/postgres.md)).
If your Synapse deployment uses workers, note that the reverse-proxy configurations for the `synapse.app.media_repository`, `synapse.app.federation_reader` and `synapse.app.event_creator` workers have changed, with the addition of a few paths (see the updated configurations [here](docs/workers.md#available-worker-applications)). Existing configurations will continue to work.
- Fix endpoint documentation for the List Rooms admin API. ([\#6770](https://github.com/matrix-org/synapse/issues/6770))
Synapse 1.9.0rc1 (2020-01-22)
=============================
Features
--------
- Allow admin to create or modify a user. Contributed by Awesome Technologies Innovationslabor GmbH. ([\#5742](https://github.com/matrix-org/synapse/issues/5742))
- Add new quarantine media admin APIs to quarantine by media ID or by user who uploaded the media. ([\#6681](https://github.com/matrix-org/synapse/issues/6681), [\#6756](https://github.com/matrix-org/synapse/issues/6756))
- Add `org.matrix.e2e_cross_signing` to `unstable_features` in `/versions` as per [MSC1756](https://github.com/matrix-org/matrix-doc/pull/1756). ([\#6712](https://github.com/matrix-org/synapse/issues/6712))
- Add a new admin API to list and filter rooms on the server. ([\#6720](https://github.com/matrix-org/synapse/issues/6720))
Bugfixes
--------
- Correctly proxy HTTP errors due to API calls to remote group servers. ([\#6654](https://github.com/matrix-org/synapse/issues/6654))
- Fix media repo admin APIs when using a media worker. ([\#6664](https://github.com/matrix-org/synapse/issues/6664))
- Fix "CRITICAL" errors being logged when a request is received for a uri containing non-ascii characters. ([\#6682](https://github.com/matrix-org/synapse/issues/6682))
- Fix a bug where we would assign a numeric user ID if somebody tried registering with an empty username. ([\#6690](https://github.com/matrix-org/synapse/issues/6690))
- Fix `purge_room` admin API. ([\#6711](https://github.com/matrix-org/synapse/issues/6711))
- Fix a bug causing Synapse to not always purge quiet rooms with a low `max_lifetime` in their message retention policies when running the automated purge jobs. ([\#6714](https://github.com/matrix-org/synapse/issues/6714))
- Fix the `synapse_port_db` not correctly running background updates. Thanks @tadzik for reporting. ([\#6718](https://github.com/matrix-org/synapse/issues/6718))
- Fix changing password via user admin API. ([\#6730](https://github.com/matrix-org/synapse/issues/6730))
- Fix `/events/:event_id` deprecated API. ([\#6731](https://github.com/matrix-org/synapse/issues/6731))
- Fix monthly active user limiting support for worker mode, fixes [#4639](https://github.com/matrix-org/synapse/issues/4639). ([\#6742](https://github.com/matrix-org/synapse/issues/6742))
- Fix bug when setting `account_validity` to an empty block in the config. Thanks to @Sorunome for reporting. ([\#6747](https://github.com/matrix-org/synapse/issues/6747))
- Fix `AttributeError: 'NoneType' object has no attribute 'get'` in `hash_password` when configuration has an empty `password_config`. Contributed by @ivilata. ([\#6753](https://github.com/matrix-org/synapse/issues/6753))
- Fix the `docker-compose.yaml` overriding the entire `/etc` folder of the container. Contributed by Fabian Meyer. ([\#6656](https://github.com/matrix-org/synapse/issues/6656))
Improved Documentation
----------------------
- Fix a typo in the configuration example for purge jobs in the sample configuration file. ([\#6621](https://github.com/matrix-org/synapse/issues/6621))
- Add complete documentation of the message retention policies support. ([\#6624](https://github.com/matrix-org/synapse/issues/6624), [\#6665](https://github.com/matrix-org/synapse/issues/6665))
- Add some helpful tips about changelog entries to the GitHub pull request template. ([\#6663](https://github.com/matrix-org/synapse/issues/6663))
- Clarify the `account_validity` and `email` sections of the sample configuration. ([\#6685](https://github.com/matrix-org/synapse/issues/6685))
- Add more endpoints to the documentation for Synapse workers. ([\#6698](https://github.com/matrix-org/synapse/issues/6698))
Deprecations and Removals
-------------------------
- Synapse no longer supports versions of SQLite before 3.11, and will refuse to start when configured to use an older version. Administrators are recommended to migrate their database to Postgres (see instructions [here](docs/postgres.md)). ([\#6675](https://github.com/matrix-org/synapse/issues/6675))
Internal Changes
----------------
- Add `local_current_membership` table for tracking local user membership state in rooms. ([\#6655](https://github.com/matrix-org/synapse/issues/6655), [\#6728](https://github.com/matrix-org/synapse/issues/6728))
- Port `synapse.replication.tcp` to async/await. ([\#6666](https://github.com/matrix-org/synapse/issues/6666))
- Fixup `synapse.replication` to pass mypy checks. ([\#6667](https://github.com/matrix-org/synapse/issues/6667))
- Allow `additional_resources` to implement `IResource` directly. ([\#6686](https://github.com/matrix-org/synapse/issues/6686))
- Allow REST endpoint implementations to raise a `RedirectException`, which will redirect the user's browser to a given location. ([\#6687](https://github.com/matrix-org/synapse/issues/6687))
- Updates and extensions to the module API. ([\#6688](https://github.com/matrix-org/synapse/issues/6688))
- Updates to the SAML mapping provider API. ([\#6689](https://github.com/matrix-org/synapse/issues/6689), [\#6723](https://github.com/matrix-org/synapse/issues/6723))
- Remove redundant `RegistrationError` class. ([\#6691](https://github.com/matrix-org/synapse/issues/6691))
- Don't block processing of incoming EDUs behind processing PDUs in the same transaction. ([\#6697](https://github.com/matrix-org/synapse/issues/6697))
- Remove duplicate check for the `session` query parameter on the `/auth/xxx/fallback/web` Client-Server endpoint. ([\#6702](https://github.com/matrix-org/synapse/issues/6702))
- Attempt to retry sending a transaction when we detect a remote server has come back online, rather than waiting for a transaction to be triggered by new data. ([\#6706](https://github.com/matrix-org/synapse/issues/6706))
- Add `StateMap` type alias to simplify types. ([\#6715](https://github.com/matrix-org/synapse/issues/6715))
- Add a `DeltaState` to track changes to be made to current state during event persistence. ([\#6716](https://github.com/matrix-org/synapse/issues/6716))
- Add more logging around message retention policies support. ([\#6717](https://github.com/matrix-org/synapse/issues/6717))
- When processing a SAML response, log the assertions for easier configuration. ([\#6724](https://github.com/matrix-org/synapse/issues/6724))
- Fixup `synapse.rest` to pass mypy. ([\#6732](https://github.com/matrix-org/synapse/issues/6732), [\#6764](https://github.com/matrix-org/synapse/issues/6764))
- Fixup `synapse.api` to pass mypy. ([\#6733](https://github.com/matrix-org/synapse/issues/6733))
- Allow streaming cache 'invalidate all' to workers. ([\#6749](https://github.com/matrix-org/synapse/issues/6749))
- Remove unused CI docker compose files. ([\#6754](https://github.com/matrix-org/synapse/issues/6754))
**WARNING**: As of this release Synapse will refuse to start if the `log_file` config option is specified. Support for the option was removed in v1.3.0.
- Fix `GET` request on `/_synapse/admin/v2/users` endpoint. Contributed by Awesome Technologies Innovationslabor GmbH. ([\#6563](https://github.com/matrix-org/synapse/issues/6563))
- Fix incorrect signing of responses from the key server implementation. ([\#6657](https://github.com/matrix-org/synapse/issues/6657))
Synapse 1.8.0rc1 (2020-01-07)
=============================
Features
--------
- Add v2 APIs for the `send_join` and `send_leave` federation endpoints (as described in [MSC1802](https://github.com/matrix-org/matrix-doc/pull/1802)). ([\#6349](https://github.com/matrix-org/synapse/issues/6349))
- Add a develop script to generate full SQL schemas. ([\#6394](https://github.com/matrix-org/synapse/issues/6394))
- Add custom SAML username mapping functionality through an external provider plugin. ([\#6411](https://github.com/matrix-org/synapse/issues/6411))
- Automatically delete empty groups/communities. ([\#6453](https://github.com/matrix-org/synapse/issues/6453))
- Add option `limit_profile_requests_to_users_who_share_rooms` to prevent requirement of a local user sharing a room with another user to query their profile information. ([\#6523](https://github.com/matrix-org/synapse/issues/6523))
- Add an `export_signing_key` script to extract the public part of signing keys when rotating them. ([\#6546](https://github.com/matrix-org/synapse/issues/6546))
- Add experimental config option to specify multiple databases. ([\#6580](https://github.com/matrix-org/synapse/issues/6580))
- Raise an error if someone tries to use the `log_file` config option. ([\#6626](https://github.com/matrix-org/synapse/issues/6626))
Bugfixes
--------
- Prevent redacted events from being returned during message search. ([\#6377](https://github.com/matrix-org/synapse/issues/6377), [\#6522](https://github.com/matrix-org/synapse/issues/6522))
- Prevent error on trying to search a upgraded room when the server is not in the predecessor room. ([\#6385](https://github.com/matrix-org/synapse/issues/6385))
- Improve performance of looking up cross-signing keys. ([\#6486](https://github.com/matrix-org/synapse/issues/6486))
- Fix race which occasionally caused deleted devices to reappear. ([\#6514](https://github.com/matrix-org/synapse/issues/6514))
- Fix missing row in `device_max_stream_id` that could cause unable to decrypt errors after server restart. ([\#6555](https://github.com/matrix-org/synapse/issues/6555))
- Fix a bug which meant that we did not send systemd notifications on startup if acme was enabled. ([\#6571](https://github.com/matrix-org/synapse/issues/6571))
- Fix exception when fetching the `matrix.org:ed25519:auto` key. ([\#6625](https://github.com/matrix-org/synapse/issues/6625))
- Fix bug where a moderator upgraded a room and became an admin in the new room. ([\#6633](https://github.com/matrix-org/synapse/issues/6633))
- Fix an error which was thrown by the `PresenceHandler` `_on_shutdown` handler. ([\#6640](https://github.com/matrix-org/synapse/issues/6640))
- Fix exceptions in the synchrotron worker log when events are rejected. ([\#6645](https://github.com/matrix-org/synapse/issues/6645))
- Ensure that upgraded rooms are removed from the directory. ([\#6648](https://github.com/matrix-org/synapse/issues/6648))
- Fix a bug causing Synapse not to fetch missing events when it believes it has every event in the room. ([\#6652](https://github.com/matrix-org/synapse/issues/6652))
Improved Documentation
----------------------
- Document the Room Shutdown Admin API. ([\#6541](https://github.com/matrix-org/synapse/issues/6541))
- Reword sections of [docs/federate.md](docs/federate.md) that explained delegation at time of Synapse 1.0 transition. ([\#6601](https://github.com/matrix-org/synapse/issues/6601))
- Added the section 'Configuration' in [docs/turn-howto.md](docs/turn-howto.md). ([\#6614](https://github.com/matrix-org/synapse/issues/6614))
Deprecations and Removals
-------------------------
- Remove redundant code from event authorisation implementation. ([\#6502](https://github.com/matrix-org/synapse/issues/6502))
- Remove unused, undocumented `/_matrix/content` API. ([\#6628](https://github.com/matrix-org/synapse/issues/6628))
- Add *experimental* support for multiple physical databases and split out state storage to separate data store. ([\#6245](https://github.com/matrix-org/synapse/issues/6245), [\#6510](https://github.com/matrix-org/synapse/issues/6510), [\#6511](https://github.com/matrix-org/synapse/issues/6511), [\#6513](https://github.com/matrix-org/synapse/issues/6513), [\#6564](https://github.com/matrix-org/synapse/issues/6564), [\#6565](https://github.com/matrix-org/synapse/issues/6565))
- Port sections of code base to async/await. ([\#6496](https://github.com/matrix-org/synapse/issues/6496), [\#6504](https://github.com/matrix-org/synapse/issues/6504), [\#6505](https://github.com/matrix-org/synapse/issues/6505), [\#6517](https://github.com/matrix-org/synapse/issues/6517), [\#6559](https://github.com/matrix-org/synapse/issues/6559), [\#6647](https://github.com/matrix-org/synapse/issues/6647), [\#6653](https://github.com/matrix-org/synapse/issues/6653))
- Remove `SnapshotCache` in favour of `ResponseCache`. ([\#6506](https://github.com/matrix-org/synapse/issues/6506))
- Silence mypy errors for files outside those specified. ([\#6512](https://github.com/matrix-org/synapse/issues/6512))
- Clean up some logging when handling incoming events over federation. ([\#6515](https://github.com/matrix-org/synapse/issues/6515))
- Test more folders against mypy. ([\#6534](https://github.com/matrix-org/synapse/issues/6534))
- Update `mypy` to new version. ([\#6537](https://github.com/matrix-org/synapse/issues/6537))
- Adjust the sytest blacklist for worker mode. ([\#6538](https://github.com/matrix-org/synapse/issues/6538))
- Remove unused `get_pagination_rows` methods from `EventSource` classes. ([\#6557](https://github.com/matrix-org/synapse/issues/6557))
- Clean up logs from the push notifier at startup. ([\#6558](https://github.com/matrix-org/synapse/issues/6558))
- Improve diagnostics on database upgrade failure. ([\#6570](https://github.com/matrix-org/synapse/issues/6570))
- Reduce the reconnect time when worker replication fails, to make it easier to catch up. ([\#6617](https://github.com/matrix-org/synapse/issues/6617))
- Simplify http handling by removing redundant `SynapseRequestFactory`. ([\#6619](https://github.com/matrix-org/synapse/issues/6619))
- Add a workaround for synapse raising exceptions when fetching the notary's own key from the notary. ([\#6620](https://github.com/matrix-org/synapse/issues/6620))
- Automate generation of the sample log config. ([\#6627](https://github.com/matrix-org/synapse/issues/6627))
- Simplify event creation code by removing redundant queries on the `event_reference_hashes` table. ([\#6629](https://github.com/matrix-org/synapse/issues/6629))
- Fix errors when `frozen_dicts` are enabled. ([\#6642](https://github.com/matrix-org/synapse/issues/6642))
Synapse 1.7.3 (2019-12-31)
==========================
This release fixes a long-standing bug in the state resolution algorithm.
Bugfixes
--------
- Fix exceptions caused by state resolution choking on malformed events. ([\#6608](https://github.com/matrix-org/synapse/issues/6608))
Synapse 1.7.2 (2019-12-20)
==========================
This release fixes some regressions introduced in Synapse 1.7.0 and 1.7.1.
Bugfixes
--------
- Fix a regression introduced in Synapse 1.7.1 which caused errors when attempting to backfill rooms over federation. ([\#6576](https://github.com/matrix-org/synapse/issues/6576))
- Fix a bug introduced in Synapse 1.7.0 which caused an error on startup when upgrading from versions before 1.3.0. ([\#6578](https://github.com/matrix-org/synapse/issues/6578))
Synapse 1.7.1 (2019-12-18)
==========================
This release includes several security fixes as well as a fix to a bug exposed by the security fixes. Administrators are encouraged to upgrade as soon as possible.
Security updates
----------------
- Fix a bug which could cause room events to be incorrectly authorized using events from a different room. ([\#6501](https://github.com/matrix-org/synapse/issues/6501), [\#6503](https://github.com/matrix-org/synapse/issues/6503), [\#6521](https://github.com/matrix-org/synapse/issues/6521), [\#6524](https://github.com/matrix-org/synapse/issues/6524), [\#6530](https://github.com/matrix-org/synapse/issues/6530), [\#6531](https://github.com/matrix-org/synapse/issues/6531))
- Fix a bug causing responses to the `/context` client endpoint to not use the pruned version of the event. ([\#6553](https://github.com/matrix-org/synapse/issues/6553))
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