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<ol class="chapter"><li class="chapter-item expanded affix "><li class="part-title">Introduction</li><li class="chapter-item expanded "><a href="../welcome_and_overview.html">Welcome and Overview</a></li><li class="chapter-item expanded affix "><li class="part-title">Setup</li><li class="chapter-item expanded "><a href="../setup/installation.html">Installation</a></li><li class="chapter-item expanded "><a href="../postgres.html">Using Postgres</a></li><li class="chapter-item expanded "><a href="../reverse_proxy.html">Configuring a Reverse Proxy</a></li><li class="chapter-item expanded "><a href="../setup/forward_proxy.html">Configuring a Forward/Outbound Proxy</a></li><li class="chapter-item expanded "><a href="../turn-howto.html">Configuring a Turn Server</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../setup/turn/coturn.html">coturn TURN server</a></li><li class="chapter-item expanded "><a href="../setup/turn/eturnal.html">eturnal TURN server</a></li></ol></li><li class="chapter-item expanded "><a href="../delegate.html">Delegation</a></li><li class="chapter-item expanded affix "><li class="part-title">Upgrading</li><li class="chapter-item expanded "><a href="../upgrade.html">Upgrading between Synapse Versions</a></li><li class="chapter-item expanded affix "><li class="part-title">Usage</li><li class="chapter-item expanded "><a href="../federate.html">Federation</a></li><li class="chapter-item expanded "><a href="../usage/configuration/index.html">Configuration</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../usage/configuration/config_documentation.html">Configuration Manual</a></li><li class="chapter-item expanded "><a href="../usage/configuration/homeserver_sample_config.html">Homeserver Sample Config File</a></li><li class="chapter-item expanded "><a href="../usage/configuration/logging_sample_config.html">Logging Sample Config File</a></li><li class="chapter-item expanded "><a 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<h1 id="synapse-release-cycle"><a class="header" href="#synapse-release-cycle">Synapse Release Cycle</a></h1>
<p>Releases of Synapse follow a two week release cycle with new releases usually
occurring on Tuesdays:</p>
<ul>
<li>Day 0: Synapse <code>N - 1</code> is released.</li>
<li>Day 7: Synapse <code>N</code> release candidate 1 is released.</li>
<li>Days 7 - 13: Synapse <code>N</code> release candidates 2+ are released, if bugs are found.</li>
<li>Day 14: Synapse <code>N</code> is released.</li>
</ul>
<p>Note that this schedule might be modified depending on the availability of the
Synapse team, e.g. releases may be skipped to avoid holidays.</p>
<p>Release announcements can be found in the
<a href="https://matrix.org/blog/category/releases">release category of the Matrix blog</a>.</p>
<h2 id="bugfix-releases"><a class="header" href="#bugfix-releases">Bugfix releases</a></h2>
<p>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.</p>
<h2 id="security-releases"><a class="header" href="#security-releases">Security releases</a></h2>
<p>Security will sometimes be backported to the previous version and released
immediately before the next release candidate. An example of this might be:</p>
<ul>
<li>Day 0: Synapse N - 1 is released.</li>
<li>Day 7: Synapse (N - 1).1 is released as Synapse N - 1 + the security fix.</li>
<li>Day 7: Synapse N release candidate 1 is released (including the security fix).</li>
</ul>
<p>Depending on the impact and complexity of security fixes, multiple fixes might
be held to be released together.</p>
<p>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 <a href="https://matrix.org/blog/category/security">security category of the Matrix blog</a>.</p>
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