Synapse Release Cycle

Releases of Synapse follow a two week release cycle with new releases usually +occurring on Tuesdays:

Day 0: Synapse N - 1 is released.
Day 7: Synapse N release candidate 1 is released.
Days 7 - 13: Synapse N release candidates 2+ are released, if bugs are found.
Day 14: Synapse N is released.

Note that this schedule might be modified depending on the availability of the +Synapse team, e.g. releases may be skipped to avoid holidays.

Release announcements can be found in the +release category of the Matrix blog.

Bugfix releases

If a bug is found after release that is deemed severe enough (by a combination +of the impacted users and the impact on those users) then a bugfix release may +be issued. This may be at any point in the release cycle.

Security releases

Security will sometimes be backported to the previous version and released +immediately before the next release candidate. An example of this might be:

Day 0: Synapse N - 1 is released.
Day 7: Synapse (N - 1).1 is released as Synapse N - 1 + the security fix.
Day 7: Synapse N release candidate 1 is released (including the security fix).

Depending on the impact and complexity of security fixes, multiple fixes might +be held to be released together.

In some cases, a pre-disclosure of a security release will be issued as a notice +to Synapse operators that there is an upcoming security release. These can be +found in the security category of the Matrix blog.

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