73 lines
3.8 KiB
Markdown
73 lines
3.8 KiB
Markdown
+++
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title = "Synapse 1.73 released"
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path = "/blog/2022/12/07/synapse-1-73-released"
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[taxonomies]
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author = ["Mathieu Velten"]
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category = ["Releases"]
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+++
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And here is another update to your beloved Matrix homeserver implementation, [Synapse
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1.73](https://github.com/matrix-org/synapse/releases/tag/v1.73.0).
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## Announcements
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### Legacy Prometheus metric names removed
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When releasing [Synapse 1.69](https://matrix.org/blog/2022/10/17/synapse-1-69-released#upcoming-removal-of-deprecated-prometheus-metric-names)
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a couple of months ago, we also announced the removal of old Prometheus metrics that have been replaced by more aptly named ones.
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he list of these metrics can be found [here](https://matrix-org.github.io/synapse/v1.73/metrics-howto.html#renaming-of-metrics--deprecation-of-old-names-in-12).
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Synapse 1.73 implements the final phase of this plan and entirely removes support for those metrics. As a result,
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the `enable_legacy_metrics` configuration option, which was introduced in
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[Synapse 1.71](https://matrix.org/blog/2022/11/22/synapse-1-72-released#announcements), has also been removed.
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Server administrators who are still relying on these legacy metric names are encouraged to update their dashboards at their earliest convenience.
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For more information, please refer to the [upgrade notes](https://matrix-org.github.io/synapse/v1.73/upgrade#legacy-prometheus-metric-names-have-now-been-removed).
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## The new stuff
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### Performance
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A bunch of performance improvements have been included in this release, specifically around
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the [`/messages`](https://spec.matrix.org/v1.5/client-server-api/#get_matrixclientv3roomsroomidmessages) endpoint.
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[Improvements to event filtering on the client-server API](https://github.com/matrix-org/synapse/pull/14527) gave the matrix.org homeserver a first nice bump as visible on this graph:
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Various optimizations around [fetching](https://github.com/matrix-org/synapse/pull/14491) [bundled](https://github.com/matrix-org/synapse/pull/14508)
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[aggregations](https://github.com/matrix-org/synapse/pull/14510) resulted in yet another nice improvement:
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[](/blog/img/2022-12-07-bundled-aggregations-improvement.png)
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Note that the graph from the first image, and the second graph from the second image are [apdexes](https://en.wikipedia.org/wiki/Apdex), which
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is a measure that shows improvement when it goes up (as opposed to e.g. response times, which improve
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when they go down).
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### Extensible Events experimental support
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Experimental support for Extensible Events has landed in Synapse.
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This is exciting since this global rework of events presentation has been in talks
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[for a while](https://github.com/matrix-org/matrix-spec-proposals/pull/1767), and
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having an implementation to experiment with greatly helps bringing the feature
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closer to completion.
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Note that this support is still very much experimental as the related MSCs are still
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under review and could change at any time, and therefore not recommended for use
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in production.
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## Everything else
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See the full [changelog](https://github.com/matrix-org/synapse/releases/tag/v1.73.0), for a
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complete list of changes in the release. Also please have a look at the [upgrade
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notes](https://matrix-org.github.io/synapse/v1.73/upgrade#upgrading-to-v1730) for this version.
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Synapse is a Free and Open Source Software project, and we'd like to extend our
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thanks to everyone who contributed to this release, including (in no particular
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order) [schmop](https://github.com/schmop), [Ashish Kumar](https://github.com/ashfame),
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[realtyem](https://github.com/realtyem), and [Brennan Chapman](https://github.com/chapb)
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as well as anyone helping us make Synapse better by sharing their feedback and reporting issues.
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