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Comment about a better future where we can get the state diff between two events #13586

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Aug 24, 2022
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Comment about a better future where we can get the state diff between two events #13586

merged 4 commits into from
Aug 24, 2022

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@MadLittleMods MadLittleMods commented Aug 22, 2022 •
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Comment about a better future where we can get the state diff between two events

Split off from #13561

Part of #13356

Mentioned in internal doc

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@MadLittleMods MadLittleMods added the T-Task Refactoring, removal, replacement, enabling or disabling functionality, other engineering tasks. label Aug 22, 2022
@MadLittleMods MadLittleMods marked this pull request as ready for review August 22, 2022 21:42
@MadLittleMods MadLittleMods requested a review from a team as a code owner August 22, 2022 21:42
reivilibre
reivilibre approved these changes Aug 23, 2022
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no objection to adding a comment here, but it feels like it's just going to sit here and never be heard from again.

Is it worth instead having an issue or a spec issue about this? You could then link to it from the comment, even.

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@MadLittleMods MadLittleMods mentioned this pull request Aug 24, 2022
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@MadLittleMods MadLittleMods merged commit 0bf180c into develop Aug 24, 2022
@MadLittleMods MadLittleMods deleted the madlittlemods/better-to-get-state-diff-comment branch August 24, 2022 23:59
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Thanks for the review @reivilibre 🐏

Fizzadar added a commit to beeper/synapse-legacy-fork that referenced this pull request Sep 15, 2022
@Fizzadar
Merge tag 'v1.67.0' into beeper
e7ef30b 
Synapse 1.67.0 (2022-09-13)
===========================

This release removes using the deprecated direct TCP replication configuration
for workers. Server admins should use Redis instead. See the [upgrade
notes](https://matrix-org.github.io/synapse/v1.67/upgrade.html#upgrading-to-v1670).

The minimum version of `poetry` supported for managing source checkouts is now
1.2.0.

**Notice:** from the next major release (1.68.0) installing Synapse from a source
checkout will require a recent Rust compiler. Those using packages or
`pip install matrix-synapse` will not be affected. See the [upgrade
notes](https://matrix-org.github.io/synapse/v1.67/upgrade.html#upgrading-to-v1670).

**Notice:** from the next major release (1.68.0), running Synapse with a SQLite
database will require SQLite version 3.27.0 or higher. (The [current minimum
 version is SQLite 3.22.0](https://github.com/matrix-org/synapse/blob/release-v1.67/synapse/storage/engines/sqlite.py#L69-L78).)
See [matrix-org#12983](matrix-org#12983) and the [upgrade notes](https://matrix-org.github.io/synapse/v1.67/upgrade.html#upgrading-to-v1670) for more details.

No significant changes since 1.67.0rc1.

Synapse 1.67.0rc1 (2022-09-06)
==============================

Features
--------

- Support setting the registration shared secret in a file, via a new `registration_shared_secret_path` configuration option. ([\matrix-org#13614](matrix-org#13614))
- Change the default startup behaviour so that any missing "additional" configuration files (signing key, etc) are generated automatically. ([\matrix-org#13615](matrix-org#13615))
- Improve performance of sending messages in rooms with thousands of local users. ([\matrix-org#13634](matrix-org#13634))

Bugfixes
--------

- Fix a bug introduced in Synapse 1.13 where the [List Rooms admin API](https://matrix-org.github.io/synapse/develop/admin_api/rooms.html#list-room-api) would return integers instead of booleans for the `federatable` and `public` fields when using a Sqlite database. ([\matrix-org#13509](matrix-org#13509))
- Fix bug that user cannot `/forget` rooms after the last member has left the room. ([\matrix-org#13546](matrix-org#13546))
- Faster Room Joins: fix `/make_knock` blocking indefinitely when the room in question is a partial-stated room. ([\matrix-org#13583](matrix-org#13583))
- Fix loading the current stream position behind the actual position. ([\matrix-org#13585](matrix-org#13585))
- Fix a longstanding bug in `register_new_matrix_user` which meant it was always necessary to explicitly give a server URL. ([\matrix-org#13616](matrix-org#13616))
- Fix the running of [MSC1763](matrix-org/matrix-spec-proposals#1763) retention purge_jobs in deployments with background jobs running on a worker by forcing them back onto the main worker. Contributed by Brad @ Beeper. ([\matrix-org#13632](matrix-org#13632))
- Fix a long-standing bug that downloaded media for URL previews was not deleted while database background updates were running. ([\matrix-org#13657](matrix-org#13657))
- Fix [MSC3030](matrix-org/matrix-spec-proposals#3030) `/timestamp_to_event` endpoint to return the correct next event when the events have the same timestamp. ([\matrix-org#13658](matrix-org#13658))
- Fix bug where we wedge media plugins if clients disconnect early. Introduced in v1.22.0. ([\matrix-org#13660](matrix-org#13660))
- Fix a long-standing bug which meant that keys for unwhitelisted servers were not returned by `/_matrix/key/v2/query`. ([\matrix-org#13683](matrix-org#13683))
- Fix a bug introduced in Synapse v1.20.0 that would cause the unstable unread counts from [MSC2654](matrix-org/matrix-spec-proposals#2654) to be calculated even if the feature is disabled. ([\matrix-org#13694](matrix-org#13694))

Updates to the Docker image
---------------------------

- Update docker image to use a stable version of poetry. ([\matrix-org#13688](matrix-org#13688))

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

- Improve the description of the ["chain cover index"](https://matrix-org.github.io/synapse/latest/auth_chain_difference_algorithm.html) used internally by Synapse. ([\matrix-org#13602](matrix-org#13602))
- Document how ["monthly active users"](https://matrix-org.github.io/synapse/latest/usage/administration/monthly_active_users.html) is calculated and used. ([\matrix-org#13617](matrix-org#13617))
- Improve documentation around user registration. ([\matrix-org#13640](matrix-org#13640))
- Remove documentation of legacy `frontend_proxy` worker app. ([\matrix-org#13645](matrix-org#13645))
- Clarify documentation that HTTP replication traffic can be protected with a shared secret. ([\matrix-org#13656](matrix-org#13656))
- Remove unintentional colons from [config manual](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html) headers. ([\matrix-org#13665](matrix-org#13665))
- Update docs to make enabling metrics more clear. ([\matrix-org#13678](matrix-org#13678))
- Clarify `(room_id, event_id)` global uniqueness and how we should scope our database schemas. ([\matrix-org#13701](matrix-org#13701))

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

- Drop support for calling `/_matrix/client/v3/rooms/{roomId}/invite` without an `id_access_token`, which was not permitted by the spec. Contributed by @Vetchu. ([\matrix-org#13241](matrix-org#13241))
- Remove redundant `_get_joined_users_from_context` cache. Contributed by Nick @ Beeper (@Fizzadar). ([\matrix-org#13569](matrix-org#13569))
- Remove the ability to use direct TCP replication with workers. Direct TCP replication was deprecated in Synapse v1.18.0. Workers now require using Redis. ([\matrix-org#13647](matrix-org#13647))
- Remove support for unstable [private read receipts](matrix-org/matrix-spec-proposals#2285). ([\matrix-org#13653](matrix-org#13653), [\matrix-org#13692](matrix-org#13692))

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

- Extend the release script to wait for GitHub Actions to finish and to be usable as a guide for the whole process. ([\matrix-org#13483](matrix-org#13483))
- Add experimental configuration option to allow disabling legacy Prometheus metric names. ([\matrix-org#13540](matrix-org#13540))
- Cache user IDs instead of profiles to reduce cache memory usage. Contributed by Nick @ Beeper (@Fizzadar). ([\matrix-org#13573](matrix-org#13573), [\matrix-org#13600](matrix-org#13600))
- Optimize how Synapse calculates domains to fetch from during backfill. ([\matrix-org#13575](matrix-org#13575))
- Comment about a better future where we can get the state diff between two events. ([\matrix-org#13586](matrix-org#13586))
- Instrument `_check_sigs_and_hash_and_fetch` to trace time spent in child concurrent calls for understandable traces in Jaeger. ([\matrix-org#13588](matrix-org#13588))
- Improve performance of `@cachedList`. ([\matrix-org#13591](matrix-org#13591))
- Minor speed up of fetching large numbers of push rules. ([\matrix-org#13592](matrix-org#13592))
- Optimise push action fetching queries. Contributed by Nick @ Beeper (@Fizzadar). ([\matrix-org#13597](matrix-org#13597))
- Rename `event_map` to `unpersisted_events` when computing the auth differences. ([\matrix-org#13603](matrix-org#13603))
- Refactor `get_users_in_room(room_id)` mis-use with dedicated `get_current_hosts_in_room(room_id)` function. ([\matrix-org#13605](matrix-org#13605))
- Use dedicated `get_local_users_in_room(room_id)` function to find local users when calculating `join_authorised_via_users_server` of a `/make_join` request. ([\matrix-org#13606](matrix-org#13606))
- Refactor `get_users_in_room(room_id)` mis-use to lookup single local user with dedicated `check_local_user_in_room(...)` function. ([\matrix-org#13608](matrix-org#13608))
- Drop unused column `application_services_state.last_txn`. ([\matrix-org#13627](matrix-org#13627))
- Improve readability of Complement CI logs by printing failure results last. ([\matrix-org#13639](matrix-org#13639))
- Generalise the `@cancellable` annotation so it can be used on functions other than just servlet methods. ([\matrix-org#13662](matrix-org#13662))
- Introduce a `CommonUsageMetrics` class to share some usage metrics between the Prometheus exporter and the phone home stats. ([\matrix-org#13671](matrix-org#13671))
- Add some logging to help track down matrix-org#13444. ([\matrix-org#13679](matrix-org#13679))
- Update poetry lock file for v1.2.0. ([\matrix-org#13689](matrix-org#13689))
- Add cache to `is_partial_state_room`. ([\matrix-org#13693](matrix-org#13693))
- Update the Grafana dashboard that is included with Synapse in the `contrib` directory. ([\matrix-org#13697](matrix-org#13697))
- Only run trial CI on all python versions on non-PRs. ([\matrix-org#13698](matrix-org#13698))
- Fix typechecking with latest types-jsonschema. ([\matrix-org#13712](matrix-org#13712))
- Reduce number of CI checks we run for PRs. ([\matrix-org#13713](matrix-org#13713))

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# Conflicts:
#	synapse/config/experimental.py
#	synapse/push/bulk_push_rule_evaluator.py
#	synapse/storage/databases/main/event_push_actions.py
#	synapse/util/caches/descriptors.py
@matrixbot matrixbot mentioned this pull request Dec 21, 2023
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