Log Message:
Update chat/matrix-synapse to 1.26.0

Synapse 1.26.0 (2021-01-27)
===========================

This release brings a new schema version for Synapse and rolling back to a previous
version is not trivial. Please review [UPGRADE.rst](UPGRADE.rst) for more details
on these changes and for general upgrade guidance.

No significant changes since 1.26.0rc2.

Synapse 1.26.0rc2 (2021-01-25)
==============================

Bugfixes
--------

- Fix receipts and account data not being sent down sync. Introduced in \ 
v1.26.0rc1. ([\#9193](https://github.com/matrix-org/synapse/issues/9193), \ 
[\#9195](https://github.com/matrix-org/synapse/issues/9195))
- Fix chain cover update to handle events with duplicate auth events. Introduced \ 
in v1.26.0rc1. ([\#9210](https://github.com/matrix-org/synapse/issues/9210))

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

- Add an `oidc-` prefix to any `idp_id`s which are given in the `oidc_providers` \ 
configuration. ([\#9189](https://github.com/matrix-org/synapse/issues/9189))
- Bump minimum `psycopg2` version to v2.8. \ 
([\#9204](https://github.com/matrix-org/synapse/issues/9204))

Synapse 1.26.0rc1 (2021-01-20)
==============================

This release brings a new schema version for Synapse and rolling back to a previous
version is not trivial. Please review [UPGRADE.rst](UPGRADE.rst) for more details
on these changes and for general upgrade guidance.

Features
--------

- Add support for multiple SSO Identity Providers. \ 
([\#9015](https://github.com/matrix-org/synapse/issues/9015), \ 
[\#9017](https://github.com/matrix-org/synapse/issues/9017), \ 
[\#9036](https://github.com/matrix-org/synapse/issues/9036), \ 
[\#9067](https://github.com/matrix-org/synapse/issues/9067), \ 
[\#9081](https://github.com/matrix-org/synapse/issues/9081), \ 
[\#9082](https://github.com/matrix-org/synapse/issues/9082), \ 
[\#9105](https://github.com/matrix-org/synapse/issues/9105), \ 
[\#9107](https://github.com/matrix-org/synapse/issues/9107), \ 
[\#9109](https://github.com/matrix-org/synapse/issues/9109), \ 
[\#9110](https://github.com/matrix-org/synapse/issues/9110), \ 
[\#9127](https://github.com/matrix-org/synapse/issues/9127), \ 
[\#9153](https://github.com/matrix-org/synapse/issues/9153), \ 
[\#9154](https://github.com/matrix-org/synapse/issues/9154), \ 
[\#9177](https://github.com/matrix-org/synapse/issues/9177))
- During user-interactive authentication via single-sign-on, give a better error \ 
if the user uses the wrong account on the SSO IdP. \ 
([\#9091](https://github.com/matrix-org/synapse/issues/9091))
- Give the `public_baseurl` a default value, if it is not explicitly set in the \ 
configuration file. \ 
([\#9159](https://github.com/matrix-org/synapse/issues/9159))
- Improve performance when calculating ignored users in large rooms. \ 
([\#9024](https://github.com/matrix-org/synapse/issues/9024))
- Implement [MSC2176](https://github.com/matrix-org/matrix-doc/pull/2176) in an \ 
experimental room version. \ 
([\#8984](https://github.com/matrix-org/synapse/issues/8984))
- Add an admin API for protecting local media from quarantine. \ 
([\#9086](https://github.com/matrix-org/synapse/issues/9086))
- Remove a user's avatar URL and display name when deactivated with the Admin \ 
API. ([\#8932](https://github.com/matrix-org/synapse/issues/8932))
- Update `/_synapse/admin/v1/users/<user_id>/joined_rooms` to work for \ 
both local and remote users. \ 
([\#8948](https://github.com/matrix-org/synapse/issues/8948))
- Add experimental support for handling to-device messages on worker processes. \ 
([\#9042](https://github.com/matrix-org/synapse/issues/9042), \ 
[\#9043](https://github.com/matrix-org/synapse/issues/9043), \ 
[\#9044](https://github.com/matrix-org/synapse/issues/9044), \ 
[\#9130](https://github.com/matrix-org/synapse/issues/9130))
- Add experimental support for handling `/keys/claim` and `/room_keys` APIs on \ 
worker processes. ([\#9068](https://github.com/matrix-org/synapse/issues/9068))
- Add experimental support for handling `/devices` API on worker processes. \ 
([\#9092](https://github.com/matrix-org/synapse/issues/9092))
- Add experimental support for moving off receipts and account data persistence \ 
off master. ([\#9104](https://github.com/matrix-org/synapse/issues/9104), \ 
[\#9166](https://github.com/matrix-org/synapse/issues/9166))

Bugfixes
--------

- Fix a long-standing issue where an internal server error would occur when \ 
requesting a profile over federation that did not include a display name / \ 
avatar URL. ([\#9023](https://github.com/matrix-org/synapse/issues/9023))
- Fix a long-standing bug where some caches could grow larger than configured. \ 
([\#9028](https://github.com/matrix-org/synapse/issues/9028))
- Fix error handling during insertion of client IPs into the database. \ 
([\#9051](https://github.com/matrix-org/synapse/issues/9051))
- Fix bug where we didn't correctly record CPU time spent in `on_new_event` \ 
block. ([\#9053](https://github.com/matrix-org/synapse/issues/9053))
- Fix a minor bug which could cause confusing error messages from invalid \ 
configurations. ([\#9054](https://github.com/matrix-org/synapse/issues/9054))
- Fix incorrect exit code when there is an error at startup. \ 
([\#9059](https://github.com/matrix-org/synapse/issues/9059))
- Fix `JSONDecodeError` spamming the logs when sending transactions to remote \ 
servers. ([\#9070](https://github.com/matrix-org/synapse/issues/9070))
- Fix "Failed to send request" errors when a client provides an \ 
invalid room alias. \ 
([\#9071](https://github.com/matrix-org/synapse/issues/9071))
- Fix bugs in federation catchup logic that caused outbound federation to be \ 
delayed for large servers after start up. Introduced in v1.8.0 and v1.21.0. \ 
([\#9114](https://github.com/matrix-org/synapse/issues/9114), \ 
[\#9116](https://github.com/matrix-org/synapse/issues/9116))
- Fix corruption of `pushers` data when a postgres bouncer is used. \ 
([\#9117](https://github.com/matrix-org/synapse/issues/9117))
- Fix minor bugs in handling the `clientRedirectUrl` parameter for SSO login. \ 
([\#9128](https://github.com/matrix-org/synapse/issues/9128))
- Fix "Unhandled error in Deferred: BodyExceededMaxSize" errors when \ 
.well-known files that are too large. \ 
([\#9108](https://github.com/matrix-org/synapse/issues/9108))
- Fix "UnboundLocalError: local variable 'length' referenced before \ 
assignment" errors when the response body exceeds the expected size. This \ 
bug was introduced in v1.25.0. \ 
([\#9145](https://github.com/matrix-org/synapse/issues/9145))
- Fix a long-standing bug "ValueError: invalid literal for int() with base \ 
10" when `/publicRooms` is requested with an invalid `server` parameter. \ 
([\#9161](https://github.com/matrix-org/synapse/issues/9161))

Improved Documentation
----------------------

- Add some extra docs for getting Synapse running on macOS. \ 
([\#8997](https://github.com/matrix-org/synapse/issues/8997))
- Correct a typo in the `systemd-with-workers` documentation. \ 
([\#9035](https://github.com/matrix-org/synapse/issues/9035))
- Correct a typo in `INSTALL.md`. \ 
([\#9040](https://github.com/matrix-org/synapse/issues/9040))
- Add missing `user_mapping_provider` configuration to the Keycloak OIDC \ 
example. Contributed by @chris-ruecker. \ 
([\#9057](https://github.com/matrix-org/synapse/issues/9057))
- Quote `pip install` packages when extras are used to avoid shells interpreting \ 
bracket characters. \ 
([\#9151](https://github.com/matrix-org/synapse/issues/9151))

Deprecations and Removals
-------------------------

- Remove broken and unmaintained `demo/webserver.py` script. \ 
([\#9039](https://github.com/matrix-org/synapse/issues/9039))

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

- Improve efficiency of large state resolutions. \ 
([\#8868](https://github.com/matrix-org/synapse/issues/8868), \ 
[\#9029](https://github.com/matrix-org/synapse/issues/9029), \ 
[\#9115](https://github.com/matrix-org/synapse/issues/9115), \ 
[\#9118](https://github.com/matrix-org/synapse/issues/9118), \ 
[\#9124](https://github.com/matrix-org/synapse/issues/9124))
- Various clean-ups to the structured logging and logging context code. \ 
([\#8939](https://github.com/matrix-org/synapse/issues/8939))
- Ensure rejected events get added to some metadata tables. \ 
([\#9016](https://github.com/matrix-org/synapse/issues/9016))
- Ignore date-rotated homeserver logs saved to disk. \ 
([\#9018](https://github.com/matrix-org/synapse/issues/9018))
- Remove an unused column from `access_tokens` table. \ 
([\#9025](https://github.com/matrix-org/synapse/issues/9025))
- Add a `-noextras` factor to `tox.ini`, to support running the tests with no \ 
optional dependencies. \ 
([\#9030](https://github.com/matrix-org/synapse/issues/9030))
- Fix running unit tests when optional dependencies are not installed. \ 
([\#9031](https://github.com/matrix-org/synapse/issues/9031))
- Allow bumping schema version when using split out state database. \ 
([\#9033](https://github.com/matrix-org/synapse/issues/9033))
- Configure the linters to run on a consistent set of files. \ 
([\#9038](https://github.com/matrix-org/synapse/issues/9038))
- Various cleanups to device inbox store. \ 
([\#9041](https://github.com/matrix-org/synapse/issues/9041))
- Drop unused database tables. \ 
([\#9055](https://github.com/matrix-org/synapse/issues/9055))
- Remove unused `SynapseService` class. \ 
([\#9058](https://github.com/matrix-org/synapse/issues/9058))
- Remove unnecessary declarations in the tests for the admin API. \ 
([\#9063](https://github.com/matrix-org/synapse/issues/9063))
- Remove `SynapseRequest.get_user_agent`. \ 
([\#9069](https://github.com/matrix-org/synapse/issues/9069))
- Remove redundant `Homeserver.get_ip_from_request` method. \ 
([\#9080](https://github.com/matrix-org/synapse/issues/9080))
- Add type hints to media repository. \ 
([\#9093](https://github.com/matrix-org/synapse/issues/9093))
- Fix the wrong arguments being passed to `BlacklistingAgentWrapper` from \ 
`MatrixFederationAgent`. Contributed by Timothy Leung. \ 
([\#9098](https://github.com/matrix-org/synapse/issues/9098))
- Reduce the scope of caught exceptions in `BlacklistingAgentWrapper`. \ 
([\#9106](https://github.com/matrix-org/synapse/issues/9106))
- Improve `UsernamePickerTestCase`. \ 
([\#9112](https://github.com/matrix-org/synapse/issues/9112))
- Remove dependency on `distutils`. \ 
([\#9125](https://github.com/matrix-org/synapse/issues/9125))
- Enforce that replication HTTP clients are called with keyword arguments only. \ 
([\#9144](https://github.com/matrix-org/synapse/issues/9144))
- Fix the Python 3.5 / old dependencies build in CI. \ 
([\#9146](https://github.com/matrix-org/synapse/issues/9146))
- Replace the old `perspectives` option in the Synapse docker config file \ 
template with `trusted_key_servers`. \ 
([\#9157](https://github.com/matrix-org/synapse/issues/9157))