Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>

Not enforced in config yet. One day.

Over time we've begun to use newer versions of mypy, typeshed, stub
packages---and of course we've improved our own annotations. This makes
some type ignore comments no longer necessary. I have removed them.

There was one exception: a module that imports `select.epoll`. The
ignore is redundant on Linux, but I've kept it ignored for those of us
who work on the source tree using not-Linux. (#11771)

I'm more interested in the config line which enforces this. I want
unused ignores to be reported, because I think it's useful feedback when
annotating to know when you've fixed a problem you had to previously
ignore.

* Installing extras before typechecking

Lacking an easy way to install all extras generically, let's bite the bullet and
make install the hand-maintained `all` extra before typechecking.

Now that https://github.com/matrix-org/backend-meta/pull/6 is merged to
the release/v1 branch.

Co-authored-by: Brad Murray <bradtgmurray@gmail.com>
Co-authored-by: Andrew Morgan <andrewm@element.io>

Synapse 1.58.0rc2 (2022-04-26)
==============================

This release candidate fixes bugs related to Synapse 1.58.0rc1's logic for handling device list updates.

Bugfixes
--------

- Fix a bug introduced in Synapse 1.58.0rc1 where the main process could consume excessive amounts of CPU and memory while handling sentry logging failures. ([\#12554](https://github.com/matrix-org/synapse/issues/12554))
- Fix a bug introduced in Synapse 1.58.0rc1 where opentracing contexts were not correctly sent to whitelisted remote servers with device lists updates. ([\#12555](https://github.com/matrix-org/synapse/issues/12555))

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

- Reduce unnecessary work when handling remote device list updates. ([\#12557](https://github.com/matrix-org/synapse/issues/12557))

Co-authored-by: David Robertson <davidr@element.io>

This seems to make dch happy when we prepare the release.

Poetry now manages the project version in pyproject.toml.

Try to avoid an OOM by checking fewer extremities.

Generally this is a big rewrite of _maybe_backfill, to try and fix some of the TODOs and other problems in it. It's best reviewed commit-by-commit.

* Update config_documentation.md

Multiple calls to `EventsWorkerStore._get_events_from_cache_or_db` can
reuse the same database fetch, which is initiated by the first call.
Ensure that cancelling the first call doesn't cancel the other calls
sharing the same database fetch.

Signed-off-by: Sean Quah <seanq@element.io>

Signed-off-by: Sami Olmari <sami@olmari.fi>

* Corrects some typos / copy & paste errors in tests.
* Clarifies docstrings.
* Removes an unnecessary method.

Signed-off-by: Ville Petteri Huh

Signed-off-by: Dirk Klimpel <dirk@klimpel.org>

This will mainly be useful when dealing with module callbacks, which are
all typed as returning `Awaitable`s instead of coroutines or
`Deferred`s.

Signed-off-by: Sean Quah <seanq@element.io>

* Fix device_unused_fallback_keys -> device_unused_fallback_key_types

* changelog

When we join a room via the faster-joins mechanism, we end up with "partial
state" at some points on the event DAG. Many parts of the codebase need to
wait for the full state to load. So, we implement a mechanism to keep track of
which events have partial state, and wait for them to be fully-populated.

* Remove leftover references to setup.py

Missed in #12478.

* Changelog

scale is meant to be a constant string, not refer to a variable.