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  74. <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" class="active">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 href="structured_logging.html">Structured Logging</a></li><li class="chapter-item expanded "><a href="templates.html">Templates</a></li><li class="chapter-item expanded "><a href="usage/configuration/user_authentication/index.html">User Authentication</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="usage/configuration/user_authentication/single_sign_on/index.html">Single-Sign On</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="openid.html">OpenID Connect</a></li><li class="chapter-item expanded "><a href="usage/configuration/user_authentication/single_sign_on/saml.html">SAML</a></li><li class="chapter-item expanded "><a href="usage/configuration/user_authentication/single_sign_on/cas.html">CAS</a></li><li class="chapter-item expanded "><a href="sso_mapping_providers.html">SSO Mapping Providers</a></li></ol></li><li class="chapter-item expanded "><a href="password_auth_providers.html">Password Auth Providers</a></li><li class="chapter-item expanded "><a href="jwt.html">JSON Web Tokens</a></li><li class="chapter-item expanded "><a href="usage/configuration/user_authentication/refresh_tokens.html">Refresh Tokens</a></li></ol></li><li class="chapter-item expanded "><a href="CAPTCHA_SETUP.html">Registration Captcha</a></li><li class="chapter-item expanded "><a href="application_services.html">Application Services</a></li><li class="chapter-item expanded "><a href="server_notices.html">Server Notices</a></li><li class="chapter-item expanded "><a href="consent_tracking.html">Consent Tracking</a></li><li class="chapter-item expanded "><a href="user_directory.html">User Directory</a></li><li class="chapter-item expanded "><a href="message_retention_policies.html">Message Retention Policies</a></li><li class="chapter-item expanded "><a href="modules/index.html">Pluggable Modules</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="modules/writing_a_module.html">Writing a module</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="modules/spam_checker_callbacks.html">Spam checker callbacks</a></li><li class="chapter-item expanded "><a href="modules/third_party_rules_callbacks.html">Third-party rules callbacks</a></li><li class="chapter-item expanded "><a href="modules/presence_router_callbacks.html">Presence router callbacks</a></li><li class="chapter-item expanded "><a href="modules/account_validity_callbacks.html">Account validity callbacks</a></li><li class="chapter-item expanded "><a href="modules/password_auth_provider_callbacks.html">Password auth provider callbacks</a></li><li class="chapter-item expanded "><a href="modules/background_update_controller_callbacks.html">Background update controller callbacks</a></li><li class="chapter-item expanded "><a href="modules/account_data_callbacks.html">Account data callbacks</a></li><li class="chapter-item expanded "><a href="modules/porting_legacy_module.html">Porting a legacy module to the new interface</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="workers.html">Workers</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="synctl_workers.html">Using synctl with Workers</a></li><li class="chapter-item expanded "><a href="systemd-with-workers/index.html">Systemd</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="usage/administration/index.html">Administration</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="usage/administration/admin_api/index.html">Admin API</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="admin_api/account_validity.html">Account Validity</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_api/background_updates.html">Background Updates</a></li><li class="chapter-item expanded "><a href="admin_api/event_reports.html">Event Reports</a></li><li class="chapter-item expanded "><a href="admin_api/media_admin_api.html">Media</a></li><li class="chapter-item expanded "><a href="admin_api/purge_history_api.html">Purge History</a></li><li class="chapter-item expanded "><a href="admin_api/register_api.html">Register Users</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_api/registration_tokens.html">Registration Tokens</a></li><li class="chapter-item expanded "><a href="admin_api/room_membership.html">Manipulate Room Membership</a></li><li class="chapter-item expanded "><a href="admin_api/rooms.html">Rooms</a></li><li class="chapter-item expanded "><a href="admin_api/server_notices.html">Server Notices</a></li><li class="chapter-item expanded "><a href="admin_api/statistics.html">Statistics</a></li><li class="chapter-item expanded "><a href="admin_api/user_admin_api.html">Users</a></li><li class="chapter-item expanded "><a href="admin_api/version_api.html">Server Version</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_api/federation.html">Federation</a></li></ol></li><li class="chapter-item expanded "><a href="manhole.html">Manhole</a></li><li class="chapter-item expanded "><a href="metrics-howto.html">Monitoring</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="usage/administration/monitoring/reporting_homeserver_usage_statistics.html">Reporting Homeserver Usage Statistics</a></li></ol></li><li class="chapter-item expanded "><a href="usage/administration/monthly_active_users.html">Monthly Active Users</a></li><li class="chapter-item expanded "><a href="usage/administration/understanding_synapse_through_grafana_graphs.html">Understanding Synapse Through Grafana Graphs</a></li><li class="chapter-item expanded "><a href="usage/administration/useful_sql_for_admins.html">Useful SQL for Admins</a></li><li class="chapter-item expanded "><a href="usage/administration/database_maintenance_tools.html">Database Maintenance Tools</a></li><li class="chapter-item expanded "><a href="usage/administration/state_groups.html">State Groups</a></li><li class="chapter-item expanded "><a href="usage/administration/request_log.html">Request log format</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_faq.html">Admin FAQ</a></li><li class="chapter-item expanded "><div>Scripts</div></li></ol></li><li class="chapter-item expanded "><li class="part-title">Development</li><li class="chapter-item expanded "><a href="development/contributing_guide.html">Contributing Guide</a></li><li class="chapter-item expanded "><a href="code_style.html">Code Style</a></li><li class="chapter-item expanded "><a href="development/reviews.html">Reviewing Code</a></li><li class="chapter-item expanded "><a href="development/releases.html">Release Cycle</a></li><li class="chapter-item expanded "><a href="development/git.html">Git Usage</a></li><li class="chapter-item expanded "><div>Testing</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="development/demo.html">Demo scripts</a></li></ol></li><li class="chapter-item expanded "><a href="opentracing.html">OpenTracing</a></li><li class="chapter-item expanded "><a href="development/database_schema.html">Database Schemas</a></li><li class="chapter-item expanded "><a href="development/experimental_features.html">Experimental features</a></li><li class="chapter-item expanded "><a href="development/dependencies.html">Dependency management</a></li><li class="chapter-item expanded "><div>Synapse Architecture</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="development/synapse_architecture/cancellation.html">Cancellation</a></li><li class="chapter-item expanded "><a href="log_contexts.html">Log Contexts</a></li><li class="chapter-item expanded "><a href="replication.html">Replication</a></li><li class="chapter-item expanded "><a href="tcp_replication.html">TCP Replication</a></li><li class="chapter-item expanded "><a href="development/synapse_architecture/faster_joins.html">Faster remote joins</a></li></ol></li><li class="chapter-item expanded "><a href="development/internal_documentation/index.html">Internal Documentation</a></li><li><ol class="section"><li class="chapter-item expanded "><div>Single Sign-On</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="development/saml.html">SAML</a></li><li class="chapter-item expanded "><a href="development/cas.html">CAS</a></li></ol></li><li class="chapter-item expanded "><a href="development/room-dag-concepts.html">Room DAG concepts</a></li><li class="chapter-item expanded "><div>State Resolution</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="auth_chain_difference_algorithm.html">The Auth Chain Difference Algorithm</a></li></ol></li><li class="chapter-item expanded "><a href="media_repository.html">Media Repository</a></li><li class="chapter-item expanded "><a href="room_and_user_statistics.html">Room and User Statistics</a></li></ol></li><li class="chapter-item expanded "><div>Scripts</div></li><li class="chapter-item expanded affix "><li class="part-title">Other</li><li class="chapter-item expanded "><a href="deprecation_policy.html">Dependency Deprecation Policy</a></li><li class="chapter-item expanded "><a href="other/running_synapse_on_single_board_computers.html">Running Synapse on a Single-Board Computer</a></li></ol>
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  106. <ul class="dropdown-menu">
  107. <!-- Versions will be added dynamically in version-picker.js -->
  108. </ul>
  109. </div>
  110. </div>
  111. </div>
  112. <h1 class="menu-title">Synapse</h1>
  113. <div class="right-buttons">
  114. <a href="print.html" title="Print this book" aria-label="Print this book">
  115. <i id="print-button" class="fa fa-print"></i>
  116. </a>
  117. <a href="https://github.com/matrix-org/synapse" title="Git repository" aria-label="Git repository">
  118. <i id="git-repository-button" class="fa fa-github"></i>
  119. </a>
  120. <a href="https://github.com/matrix-org/synapse/edit/develop/docs/upgrade.md" title="Suggest an edit" aria-label="Suggest an edit">
  121. <i id="git-edit-button" class="fa fa-edit"></i>
  122. </a>
  123. </div>
  124. </div>
  125. <div id="search-wrapper" class="hidden">
  126. <form id="searchbar-outer" class="searchbar-outer">
  127. <input type="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header">
  128. </form>
  129. <div id="searchresults-outer" class="searchresults-outer hidden">
  130. <div id="searchresults-header" class="searchresults-header"></div>
  131. <ul id="searchresults">
  132. </ul>
  133. </div>
  134. </div>
  135. <!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM -->
  136. <script type="text/javascript">
  137. document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible');
  138. document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible');
  139. Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) {
  140. link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1);
  141. });
  142. </script>
  143. <div id="content" class="content">
  144. <main>
  145. <!-- Page table of contents -->
  146. <div class="sidetoc">
  147. <nav class="pagetoc"></nav>
  148. </div>
  149. <h1 id="upgrading-synapse"><a class="header" href="#upgrading-synapse">Upgrading Synapse</a></h1>
  150. <p>Before upgrading check if any special steps are required to upgrade from
  151. the version you currently have installed to the current version of
  152. Synapse. The extra instructions that may be required are listed later in
  153. this document.</p>
  154. <ul>
  155. <li>
  156. <p>Check that your versions of Python and PostgreSQL are still
  157. supported.</p>
  158. <p>Synapse follows upstream lifecycles for <a href="https://endoflife.date/python">Python</a> and
  159. <a href="https://endoflife.date/postgresql">PostgreSQL</a>, and removes support for versions
  160. which are no longer maintained.</p>
  161. <p>The website <a href="https://endoflife.date">https://endoflife.date</a> also offers convenient
  162. summaries.</p>
  163. </li>
  164. <li>
  165. <p>If Synapse was installed using <a href="setup/installation.html#prebuilt-packages">prebuilt packages</a>,
  166. you will need to follow the normal process for upgrading those packages.</p>
  167. </li>
  168. <li>
  169. <p>If Synapse was installed using pip then upgrade to the latest
  170. version by running:</p>
  171. <pre><code class="language-bash">pip install --upgrade matrix-synapse
  172. </code></pre>
  173. </li>
  174. <li>
  175. <p>If Synapse was installed from source, then:</p>
  176. <ol>
  177. <li>
  178. <p>Obtain the latest version of the source code. Git users can run
  179. <code>git pull</code> to do this.</p>
  180. </li>
  181. <li>
  182. <p>If you're running Synapse in a virtualenv, make sure to activate it before
  183. upgrading. For example, if Synapse is installed in a virtualenv in <code>~/synapse/env</code> then
  184. run:</p>
  185. <pre><code class="language-bash">source ~/synapse/env/bin/activate
  186. pip install --upgrade .
  187. </code></pre>
  188. <p>Include any relevant extras between square brackets, e.g. <code>pip install --upgrade &quot;.[postgres,oidc]&quot;</code>.</p>
  189. </li>
  190. <li>
  191. <p>If you're using <code>poetry</code> to manage a Synapse installation, run:</p>
  192. <pre><code class="language-bash">poetry install
  193. </code></pre>
  194. <p>Include any relevant extras with <code>--extras</code>, e.g. <code>poetry install --extras postgres --extras oidc</code>.
  195. It's probably easiest to run <code>poetry install --extras all</code>.</p>
  196. </li>
  197. <li>
  198. <p>Restart Synapse:</p>
  199. <pre><code class="language-bash">synctl restart
  200. </code></pre>
  201. </li>
  202. </ol>
  203. </li>
  204. </ul>
  205. <p>To check whether your update was successful, you can check the running
  206. server version with:</p>
  207. <pre><code class="language-bash"># you may need to replace 'localhost:8008' if synapse is not configured
  208. # to listen on port 8008.
  209. curl http://localhost:8008/_synapse/admin/v1/server_version
  210. </code></pre>
  211. <h2 id="rolling-back-to-older-versions"><a class="header" href="#rolling-back-to-older-versions">Rolling back to older versions</a></h2>
  212. <p>Rolling back to previous releases can be difficult, due to database
  213. schema changes between releases. Where we have been able to test the
  214. rollback process, this will be noted below.</p>
  215. <p>In general, you will need to undo any changes made during the upgrade
  216. process, for example:</p>
  217. <ul>
  218. <li>
  219. <p>pip:</p>
  220. <pre><code class="language-bash">source env/bin/activate
  221. # replace `1.3.0` accordingly:
  222. pip install matrix-synapse==1.3.0
  223. </code></pre>
  224. </li>
  225. <li>
  226. <p>Debian:</p>
  227. <pre><code class="language-bash"># replace `1.3.0` and `stretch` accordingly:
  228. wget https://packages.matrix.org/debian/pool/main/m/matrix-synapse-py3/matrix-synapse-py3_1.3.0+stretch1_amd64.deb
  229. dpkg -i matrix-synapse-py3_1.3.0+stretch1_amd64.deb
  230. </code></pre>
  231. </li>
  232. </ul>
  233. <h1 id="upgrading-to-v1810"><a class="header" href="#upgrading-to-v1810">Upgrading to v1.81.0</a></h1>
  234. <h2 id="application-service-path--authentication-deprecations"><a class="header" href="#application-service-path--authentication-deprecations">Application service path &amp; authentication deprecations</a></h2>
  235. <p>Synapse now attempts the versioned appservice paths before falling back to the
  236. <a href="https://spec.matrix.org/v1.6/application-service-api/#legacy-routes">legacy paths</a>.
  237. Usage of the legacy routes should be considered deprecated.</p>
  238. <p>Additionally, Synapse has supported sending the application service access token
  239. via <a href="https://spec.matrix.org/v1.6/application-service-api/#authorization">the <code>Authorization</code> header</a>
  240. since v1.70.0. For backwards compatibility it is <em>also</em> sent as the <code>access_token</code>
  241. query parameter. This is insecure and should be considered deprecated.</p>
  242. <p>A future version of Synapse (v1.88.0 or later) will remove support for legacy
  243. application service routes and query parameter authorization.</p>
  244. <h1 id="upgrading-to-v1800"><a class="header" href="#upgrading-to-v1800">Upgrading to v1.80.0</a></h1>
  245. <h2 id="reporting-events-error-code-change"><a class="header" href="#reporting-events-error-code-change">Reporting events error code change</a></h2>
  246. <p>Before this update, the
  247. <a href="https://spec.matrix.org/v1.6/client-server-api/#post_matrixclientv3roomsroomidreporteventid"><code>POST /_matrix/client/v3/rooms/{roomId}/report/{eventId}</code></a>
  248. endpoint would return a <code>403</code> if a user attempted to report an event that they did not have access to.
  249. This endpoint will now return a <code>404</code> in this case instead.</p>
  250. <p>Clients that implement event reporting should check that their error handling code will handle this
  251. change.</p>
  252. <h1 id="upgrading-to-v1790"><a class="header" href="#upgrading-to-v1790">Upgrading to v1.79.0</a></h1>
  253. <h2 id="the-on_threepid_bind-module-callback-method-has-been-deprecated"><a class="header" href="#the-on_threepid_bind-module-callback-method-has-been-deprecated">The <code>on_threepid_bind</code> module callback method has been deprecated</a></h2>
  254. <p>Synapse v1.79.0 deprecates the
  255. <a href="modules/third_party_rules_callbacks.html#on_threepid_bind"><code>on_threepid_bind</code></a>
  256. &quot;third-party rules&quot; Synapse module callback method in favour of a new module method,
  257. <a href="modules/third_party_rules_callbacks.html#on_add_user_third_party_identifier"><code>on_add_user_third_party_identifier</code></a>.
  258. <code>on_threepid_bind</code> will be removed in a future version of Synapse. You should check whether any Synapse
  259. modules in use in your deployment are making use of <code>on_threepid_bind</code>, and update them where possible.</p>
  260. <p>The arguments and functionality of the new method are the same.</p>
  261. <p>The justification behind the name change is that the old method's name, <code>on_threepid_bind</code>, was
  262. misleading. A user is considered to &quot;bind&quot; their third-party ID to their Matrix ID only if they
  263. do so via an <a href="https://spec.matrix.org/latest/identity-service-api/">identity server</a>
  264. (so that users on other homeservers may find them). But this method was not called in that case -
  265. it was only called when a user added a third-party identifier on the local homeserver.</p>
  266. <p>Module developers may also be interested in the related
  267. <a href="modules/third_party_rules_callbacks.html#on_remove_user_third_party_identifier"><code>on_remove_user_third_party_identifier</code></a>
  268. module callback method that was also added in Synapse v1.79.0. This new method is called when a
  269. user removes a third-party identifier from their account.</p>
  270. <h1 id="upgrading-to-v1780"><a class="header" href="#upgrading-to-v1780">Upgrading to v1.78.0</a></h1>
  271. <h2 id="deprecate-the-_synapseadminv1mediaserver_namedelete-admin-api"><a class="header" href="#deprecate-the-_synapseadminv1mediaserver_namedelete-admin-api">Deprecate the <code>/_synapse/admin/v1/media/&lt;server_name&gt;/delete</code> admin API</a></h2>
  272. <p>Synapse 1.78.0 replaces the <code>/_synapse/admin/v1/media/&lt;server_name&gt;/delete</code>
  273. admin API with an identical endpoint at <code>/_synapse/admin/v1/media/delete</code>. Please
  274. update your tooling to use the new endpoint. The deprecated version will be removed
  275. in a future release.</p>
  276. <h1 id="upgrading-to-v1760"><a class="header" href="#upgrading-to-v1760">Upgrading to v1.76.0</a></h1>
  277. <h2 id="faster-joins-are-enabled-by-default"><a class="header" href="#faster-joins-are-enabled-by-default">Faster joins are enabled by default</a></h2>
  278. <p>When joining a room for the first time, Synapse 1.76.0 will request a partial join from the other server by default. Previously, server admins had to opt-in to this using an experimental config flag.</p>
  279. <p>Server admins can opt out of this feature for the time being by setting</p>
  280. <pre><code class="language-yaml">experimental:
  281. faster_joins: false
  282. </code></pre>
  283. <p>in their server config.</p>
  284. <h2 id="changes-to-the-account-data-replication-streams"><a class="header" href="#changes-to-the-account-data-replication-streams">Changes to the account data replication streams</a></h2>
  285. <p>Synapse has changed the format of the account data and devices replication
  286. streams (between workers). This is a forwards- and backwards-incompatible
  287. change: v1.75 workers cannot process account data replicated by v1.76 workers,
  288. and vice versa.</p>
  289. <p>Once all workers are upgraded to v1.76 (or downgraded to v1.75), account data
  290. and device replication will resume as normal.</p>
  291. <h2 id="minimum-version-of-poetry-is-now-132"><a class="header" href="#minimum-version-of-poetry-is-now-132">Minimum version of Poetry is now 1.3.2</a></h2>
  292. <p>The minimum supported version of Poetry is now 1.3.2 (previously 1.2.0, <a href="#upgrading-to-v1670">since
  293. Synapse 1.67</a>). If you have used <code>poetry install</code> to
  294. install Synapse from a source checkout, you should upgrade poetry: see its
  295. <a href="https://python-poetry.org/docs/#installation">installation instructions</a>.
  296. For all other installation methods, no acction is required.</p>
  297. <h1 id="upgrading-to-v1740"><a class="header" href="#upgrading-to-v1740">Upgrading to v1.74.0</a></h1>
  298. <h2 id="unicode-support-in-user-search"><a class="header" href="#unicode-support-in-user-search">Unicode support in user search</a></h2>
  299. <p>This version introduces optional support for an <a href="https://github.com/matrix-org/synapse/pull/14464">improved user search dealing with Unicode characters</a>.</p>
  300. <p>If you want to take advantage of this feature you need to install PyICU,
  301. the ICU native dependency and its development headers
  302. so that PyICU can build since no prebuilt wheels are available.</p>
  303. <p>You can follow <a href="https://pypi.org/project/PyICU/">the PyICU documentation</a> to do so,
  304. and then do <code>pip install matrix-synapse[user-search]</code> for a PyPI install.</p>
  305. <p>Docker images and Debian packages need nothing specific as they already
  306. include or specify ICU as an explicit dependency.</p>
  307. <h2 id="user-directory-rebuild"><a class="header" href="#user-directory-rebuild">User directory rebuild</a></h2>
  308. <p>Synapse 1.74 queues a background update
  309. <a href="https://github.com/matrix-org/synapse/pull/14643">to rebuild the user directory</a>,
  310. in order to fix missing or erroneous entries.</p>
  311. <p>When this update begins, the user directory will be cleared out and rebuilt from
  312. scratch. User directory lookups will be incomplete until the rebuild completes.
  313. Admins can monitor the rebuild's progress by using the
  314. <a href="usage/administration/admin_api/background_updates.html#status">Background update Admin API</a>.</p>
  315. <h1 id="upgrading-to-v1730"><a class="header" href="#upgrading-to-v1730">Upgrading to v1.73.0</a></h1>
  316. <h2 id="legacy-prometheus-metric-names-have-now-been-removed"><a class="header" href="#legacy-prometheus-metric-names-have-now-been-removed">Legacy Prometheus metric names have now been removed</a></h2>
  317. <p>Synapse v1.69.0 included the deprecation of legacy Prometheus metric names
  318. and offered an option to disable them.
  319. Synapse v1.71.0 disabled legacy Prometheus metric names by default.</p>
  320. <p>This version, v1.73.0, removes those legacy Prometheus metric names entirely.
  321. This also means that the <code>enable_legacy_metrics</code> configuration option has been
  322. removed; it will no longer be possible to re-enable the legacy metric names.</p>
  323. <p>If you use metrics and have not yet updated your Grafana dashboard(s),
  324. Prometheus console(s) or alerting rule(s), please consider doing so when upgrading
  325. to this version.
  326. Note that the included Grafana dashboard was updated in v1.72.0 to correct some
  327. metric names which were missed when legacy metrics were disabled by default.</p>
  328. <p>See <a href="#deprecation-of-legacy-prometheus-metric-names">v1.69.0: Deprecation of legacy Prometheus metric names</a>
  329. for more context.</p>
  330. <h1 id="upgrading-to-v1720"><a class="header" href="#upgrading-to-v1720">Upgrading to v1.72.0</a></h1>
  331. <h2 id="dropping-support-for-postgresql-10"><a class="header" href="#dropping-support-for-postgresql-10">Dropping support for PostgreSQL 10</a></h2>
  332. <p>In line with our <a href="deprecation_policy.html">deprecation policy</a>, we've dropped
  333. support for PostgreSQL 10, as it is no longer supported upstream.</p>
  334. <p>This release of Synapse requires PostgreSQL 11+.</p>
  335. <h1 id="upgrading-to-v1710"><a class="header" href="#upgrading-to-v1710">Upgrading to v1.71.0</a></h1>
  336. <h2 id="removal-of-the-generate_short_term_login_token-module-api-method"><a class="header" href="#removal-of-the-generate_short_term_login_token-module-api-method">Removal of the <code>generate_short_term_login_token</code> module API method</a></h2>
  337. <p>As announced with the release of <a href="#deprecation-of-the-generate_short_term_login_token-module-api-method">Synapse 1.69.0</a>, the deprecated <code>generate_short_term_login_token</code> module method has been removed.</p>
  338. <p>Modules relying on it can instead use the <code>create_login_token</code> method.</p>
  339. <h2 id="changes-to-the-events-received-by-application-services-interest"><a class="header" href="#changes-to-the-events-received-by-application-services-interest">Changes to the events received by application services (interest)</a></h2>
  340. <p>To align with spec (changed in
  341. <a href="https://github.com/matrix-org/matrix-spec-proposals/pull/3905">MSC3905</a>), Synapse now
  342. only considers local users to be interesting. In other words, the <code>users</code> namespace
  343. regex is only be applied against local users of the homeserver.</p>
  344. <p>Please note, this probably doesn't affect the expected behavior of your application
  345. service, since an interesting local user in a room still means all messages in the room
  346. (from local or remote users) will still be considered interesting. And matching a room
  347. with the <code>rooms</code> or <code>aliases</code> namespace regex will still consider all events sent in the
  348. room to be interesting to the application service.</p>
  349. <p>If one of your application service's <code>users</code> regex was intending to match a remote user,
  350. this will no longer match as you expect. The behavioral mismatch between matching all
  351. local users and some remote users is why the spec was changed/clarified and this
  352. caveat is no longer supported.</p>
  353. <h2 id="legacy-prometheus-metric-names-are-now-disabled-by-default"><a class="header" href="#legacy-prometheus-metric-names-are-now-disabled-by-default">Legacy Prometheus metric names are now disabled by default</a></h2>
  354. <p>Synapse v1.71.0 disables legacy Prometheus metric names by default.
  355. For administrators that still rely on them and have not yet had chance to update their
  356. uses of the metrics, it's still possible to specify <code>enable_legacy_metrics: true</code> in
  357. the configuration to re-enable them temporarily.</p>
  358. <p>Synapse v1.73.0 will <strong>remove legacy metric names altogether</strong> and at that point,
  359. it will no longer be possible to re-enable them.</p>
  360. <p>If you do not use metrics or you have already updated your Grafana dashboard(s),
  361. Prometheus console(s) and alerting rule(s), there is no action needed.</p>
  362. <p>See <a href="#deprecation-of-legacy-prometheus-metric-names">v1.69.0: Deprecation of legacy Prometheus metric names</a>.</p>
  363. <h1 id="upgrading-to-v1690"><a class="header" href="#upgrading-to-v1690">Upgrading to v1.69.0</a></h1>
  364. <h2 id="changes-to-the-receipts-replication-streams"><a class="header" href="#changes-to-the-receipts-replication-streams">Changes to the receipts replication streams</a></h2>
  365. <p>Synapse now includes information indicating if a receipt applies to a thread when
  366. replicating it to other workers. This is a forwards- and backwards-incompatible
  367. change: v1.68 and workers cannot process receipts replicated by v1.69 workers, and
  368. vice versa.</p>
  369. <p>Once all workers are upgraded to v1.69 (or downgraded to v1.68), receipts
  370. replication will resume as normal.</p>
  371. <h2 id="deprecation-of-legacy-prometheus-metric-names"><a class="header" href="#deprecation-of-legacy-prometheus-metric-names">Deprecation of legacy Prometheus metric names</a></h2>
  372. <p>In current versions of Synapse, some Prometheus metrics are emitted under two different names,
  373. with one of the names being older but non-compliant with OpenMetrics and Prometheus conventions
  374. and one of the names being newer but compliant.</p>
  375. <p>Synapse v1.71.0 will turn the old metric names off <em>by default</em>.
  376. For administrators that still rely on them and have not had chance to update their
  377. uses of the metrics, it's possible to specify <code>enable_legacy_metrics: true</code> in
  378. the configuration to re-enable them temporarily.</p>
  379. <p>Synapse v1.73.0 will <strong>remove legacy metric names altogether</strong> and it will no longer
  380. be possible to re-enable them.</p>
  381. <p>The Grafana dashboard, Prometheus recording rules and Prometheus Consoles included
  382. in the <code>contrib</code> directory in the Synapse repository have been updated to no longer
  383. rely on the legacy names. These can be used on a current version of Synapse
  384. because current versions of Synapse emit both old and new names.</p>
  385. <p>You may need to update your alerting rules or any other rules that depend on
  386. the names of Prometheus metrics.
  387. If you want to test your changes before legacy names are disabled by default,
  388. you may specify <code>enable_legacy_metrics: false</code> in your homeserver configuration.</p>
  389. <p>A list of affected metrics is available on the <a href="https://matrix-org.github.io/synapse/v1.69/metrics-howto.html?highlight=metrics%20deprecated#renaming-of-metrics--deprecation-of-old-names-in-12">Metrics How-to page</a>.</p>
  390. <h2 id="deprecation-of-the-generate_short_term_login_token-module-api-method"><a class="header" href="#deprecation-of-the-generate_short_term_login_token-module-api-method">Deprecation of the <code>generate_short_term_login_token</code> module API method</a></h2>
  391. <p>The following method of the module API has been deprecated, and is scheduled to
  392. be remove in v1.71.0:</p>
  393. <pre><code class="language-python">def generate_short_term_login_token(
  394. self,
  395. user_id: str,
  396. duration_in_ms: int = (2 * 60 * 1000),
  397. auth_provider_id: str = &quot;&quot;,
  398. auth_provider_session_id: Optional[str] = None,
  399. ) -&gt; str:
  400. ...
  401. </code></pre>
  402. <p>It has been replaced by an asynchronous equivalent:</p>
  403. <pre><code class="language-python">async def create_login_token(
  404. self,
  405. user_id: str,
  406. duration_in_ms: int = (2 * 60 * 1000),
  407. auth_provider_id: Optional[str] = None,
  408. auth_provider_session_id: Optional[str] = None,
  409. ) -&gt; str:
  410. ...
  411. </code></pre>
  412. <p>Synapse will log a warning when a module uses the deprecated method, to help
  413. administrators find modules using it.</p>
  414. <h1 id="upgrading-to-v1680"><a class="header" href="#upgrading-to-v1680">Upgrading to v1.68.0</a></h1>
  415. <p>Two changes announced in the upgrade notes for v1.67.0 have now landed in v1.68.0.</p>
  416. <h2 id="sqlite-version-requirement"><a class="header" href="#sqlite-version-requirement">SQLite version requirement</a></h2>
  417. <p>Synapse now requires a SQLite version of 3.27.0 or higher if SQLite is configured as
  418. Synapse's database.</p>
  419. <p>Installations using</p>
  420. <ul>
  421. <li>Docker images <a href="https://hub.docker.com/r/matrixdotorg/synapse">from <code>matrixdotorg</code></a>,</li>
  422. <li>Debian packages <a href="https://packages.matrix.org/">from Matrix.org</a>, or</li>
  423. <li>a PostgreSQL database</li>
  424. </ul>
  425. <p>are not affected.</p>
  426. <h2 id="rust-requirement-when-building-from-source"><a class="header" href="#rust-requirement-when-building-from-source">Rust requirement when building from source.</a></h2>
  427. <p>Building from a source checkout of Synapse now requires a recent Rust compiler
  428. (currently Rust 1.58.1, but see also the
  429. <a href="https://matrix-org.github.io/synapse/latest/deprecation_policy.html">Platform Dependency Policy</a>).</p>
  430. <p>Installations using</p>
  431. <ul>
  432. <li>Docker images <a href="https://hub.docker.com/r/matrixdotorg/synapse">from <code>matrixdotorg</code></a>,</li>
  433. <li>Debian packages <a href="https://packages.matrix.org/">from Matrix.org</a>, or</li>
  434. <li>PyPI wheels via <code>pip install matrix-synapse</code> (on supported platforms and architectures)</li>
  435. </ul>
  436. <p>will not be affected.</p>
  437. <h1 id="upgrading-to-v1670"><a class="header" href="#upgrading-to-v1670">Upgrading to v1.67.0</a></h1>
  438. <h2 id="direct-tcp-replication-is-no-longer-supported-migrate-to-redis"><a class="header" href="#direct-tcp-replication-is-no-longer-supported-migrate-to-redis">Direct TCP replication is no longer supported: migrate to Redis</a></h2>
  439. <p>Redis support was added in v1.13.0 with it becoming the recommended method in
  440. v1.18.0. It replaced the old direct TCP connections (which was deprecated as of
  441. v1.18.0) to the main process. With Redis, rather than all the workers connecting
  442. to the main process, all the workers and the main process connect to Redis,
  443. which relays replication commands between processes. This can give a significant
  444. CPU saving on the main process and is a prerequisite for upcoming
  445. performance improvements.</p>
  446. <p>To migrate to Redis add the <a href="./workers.html#shared-configuration"><code>redis</code> config</a>,
  447. and remove the TCP <code>replication</code> listener from config of the master and
  448. <code>worker_replication_port</code> from worker config. Note that a HTTP listener with a
  449. <code>replication</code> resource is still required.</p>
  450. <h2 id="minimum-version-of-poetry-is-now-v120"><a class="header" href="#minimum-version-of-poetry-is-now-v120">Minimum version of Poetry is now v1.2.0</a></h2>
  451. <p>The minimum supported version of poetry is now 1.2. This should only affect
  452. those installing from a source checkout.</p>
  453. <h2 id="rust-requirement-in-the-next-release"><a class="header" href="#rust-requirement-in-the-next-release">Rust requirement in the next release</a></h2>
  454. <p>From the next major release (v1.68.0) installing Synapse from a source checkout
  455. will require a recent Rust compiler. Those using packages or
  456. <code>pip install matrix-synapse</code> will not be affected.</p>
  457. <p>The simplest way of installing Rust is via <a href="https://rustup.rs/">rustup.rs</a></p>
  458. <h2 id="sqlite-version-requirement-in-the-next-release"><a class="header" href="#sqlite-version-requirement-in-the-next-release">SQLite version requirement in the next release</a></h2>
  459. <p>From the next major release (v1.68.0) Synapse will require SQLite 3.27.0 or
  460. higher. Synapse v1.67.0 will be the last major release supporting SQLite
  461. versions 3.22 to 3.26.</p>
  462. <p>Those using Docker images or Debian packages from Matrix.org will not be
  463. affected. If you have installed from source, you should check the version of
  464. SQLite used by Python with:</p>
  465. <pre><code class="language-shell">python -c &quot;import sqlite3; print(sqlite3.sqlite_version)&quot;
  466. </code></pre>
  467. <p>If this is too old, refer to your distribution for advice on upgrading.</p>
  468. <h1 id="upgrading-to-v1660"><a class="header" href="#upgrading-to-v1660">Upgrading to v1.66.0</a></h1>
  469. <h2 id="delegation-of-email-validation-no-longer-supported"><a class="header" href="#delegation-of-email-validation-no-longer-supported">Delegation of email validation no longer supported</a></h2>
  470. <p>As of this version, Synapse no longer allows the tasks of verifying email address
  471. ownership, and password reset confirmation, to be delegated to an identity server.
  472. This removal was previously planned for Synapse 1.64.0, but was
  473. <a href="https://github.com/matrix-org/synapse/issues/13421">delayed</a> until now to give
  474. homeserver administrators more notice of the change.</p>
  475. <p>To continue to allow users to add email addresses to their homeserver accounts,
  476. and perform password resets, make sure that Synapse is configured with a working
  477. email server in the <a href="https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#email"><code>email</code> configuration
  478. section</a>
  479. (including, at a minimum, a <code>notif_from</code> setting.)</p>
  480. <p>Specifying an <code>email</code> setting under <code>account_threepid_delegates</code> will now cause
  481. an error at startup.</p>
  482. <h1 id="upgrading-to-v1640"><a class="header" href="#upgrading-to-v1640">Upgrading to v1.64.0</a></h1>
  483. <h2 id="deprecation-of-the-ability-to-delegate-e-mail-verification-to-identity-servers"><a class="header" href="#deprecation-of-the-ability-to-delegate-e-mail-verification-to-identity-servers">Deprecation of the ability to delegate e-mail verification to identity servers</a></h2>
  484. <p>Synapse v1.66.0 will remove the ability to delegate the tasks of verifying email address ownership, and password reset confirmation, to an identity server.</p>
  485. <p>If you require your homeserver to verify e-mail addresses or to support password resets via e-mail, please configure your homeserver with SMTP access so that it can send e-mails on its own behalf.
  486. <a href="https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#email">Consult the configuration documentation for more information.</a></p>
  487. <p>The option that will be removed is <code>account_threepid_delegates.email</code>.</p>
  488. <h2 id="changes-to-the-event-replication-streams"><a class="header" href="#changes-to-the-event-replication-streams">Changes to the event replication streams</a></h2>
  489. <p>Synapse now includes a flag indicating if an event is an outlier when
  490. replicating it to other workers. This is a forwards- and backwards-incompatible
  491. change: v1.63 and workers cannot process events replicated by v1.64 workers, and
  492. vice versa.</p>
  493. <p>Once all workers are upgraded to v1.64 (or downgraded to v1.63), event
  494. replication will resume as normal.</p>
  495. <h2 id="frozendict-release"><a class="header" href="#frozendict-release">frozendict release</a></h2>
  496. <p><a href="https://github.com/Marco-Sulla/python-frozendict/releases/tag/v2.3.3">frozendict 2.3.3</a>
  497. has recently been released, which fixes a memory leak that occurs during <code>/sync</code>
  498. requests. We advise server administrators who installed Synapse via pip to upgrade
  499. frozendict with <code>pip install --upgrade frozendict</code>. The Docker image
  500. <code>matrixdotorg/synapse</code> and the Debian packages from <code>packages.matrix.org</code> already
  501. include the updated library.</p>
  502. <h1 id="upgrading-to-v1620"><a class="header" href="#upgrading-to-v1620">Upgrading to v1.62.0</a></h1>
  503. <h2 id="new-signatures-for-spam-checker-callbacks"><a class="header" href="#new-signatures-for-spam-checker-callbacks">New signatures for spam checker callbacks</a></h2>
  504. <p>As a followup to changes in v1.60.0, the following spam-checker callbacks have changed signature:</p>
  505. <ul>
  506. <li><code>user_may_join_room</code></li>
  507. <li><code>user_may_invite</code></li>
  508. <li><code>user_may_send_3pid_invite</code></li>
  509. <li><code>user_may_create_room</code></li>
  510. <li><code>user_may_create_room_alias</code></li>
  511. <li><code>user_may_publish_room</code></li>
  512. <li><code>check_media_file_for_spam</code></li>
  513. </ul>
  514. <p>For each of these methods, the previous callback signature has been deprecated.</p>
  515. <p>Whereas callbacks used to return <code>bool</code>, they should now return <code>Union[&quot;synapse.module_api.NOT_SPAM&quot;, &quot;synapse.module_api.errors.Codes&quot;]</code>.</p>
  516. <p>For instance, if your module implements <code>user_may_join_room</code> as follows:</p>
  517. <pre><code class="language-python">async def user_may_join_room(self, user_id: str, room_id: str, is_invited: bool)
  518. if ...:
  519. # Request is spam
  520. return False
  521. # Request is not spam
  522. return True
  523. </code></pre>
  524. <p>you should rewrite it as follows:</p>
  525. <pre><code class="language-python">async def user_may_join_room(self, user_id: str, room_id: str, is_invited: bool)
  526. if ...:
  527. # Request is spam, mark it as forbidden (you may use some more precise error
  528. # code if it is useful).
  529. return synapse.module_api.errors.Codes.FORBIDDEN
  530. # Request is not spam, mark it as such.
  531. return synapse.module_api.NOT_SPAM
  532. </code></pre>
  533. <h1 id="upgrading-to-v1610"><a class="header" href="#upgrading-to-v1610">Upgrading to v1.61.0</a></h1>
  534. <h2 id="removal-of-deprecated-communitygroups"><a class="header" href="#removal-of-deprecated-communitygroups">Removal of deprecated community/groups</a></h2>
  535. <p>This release of Synapse will remove deprecated community/groups from codebase.</p>
  536. <h3 id="worker-endpoints"><a class="header" href="#worker-endpoints">Worker endpoints</a></h3>
  537. <p>For those who have deployed workers, following worker endpoints will no longer
  538. exist and they can be removed from the reverse proxy configuration:</p>
  539. <ul>
  540. <li><code>^/_matrix/federation/v1/get_groups_publicised$</code></li>
  541. <li><code>^/_matrix/client/(r0|v3|unstable)/joined_groups$</code></li>
  542. <li><code>^/_matrix/client/(r0|v3|unstable)/publicised_groups$</code></li>
  543. <li><code>^/_matrix/client/(r0|v3|unstable)/publicised_groups/</code></li>
  544. <li><code>^/_matrix/federation/v1/groups/</code></li>
  545. <li><code>^/_matrix/client/(r0|v3|unstable)/groups/</code></li>
  546. </ul>
  547. <h1 id="upgrading-to-v1600"><a class="header" href="#upgrading-to-v1600">Upgrading to v1.60.0</a></h1>
  548. <h2 id="adding-a-new-unique-index-to-state_group_edges-could-fail-if-your-database-is-corrupted"><a class="header" href="#adding-a-new-unique-index-to-state_group_edges-could-fail-if-your-database-is-corrupted">Adding a new unique index to <code>state_group_edges</code> could fail if your database is corrupted</a></h2>
  549. <p>This release of Synapse will add a unique index to the <code>state_group_edges</code> table, in order
  550. to prevent accidentally introducing duplicate information (for example, because a database
  551. backup was restored multiple times).</p>
  552. <p>Duplicate rows being present in this table could cause drastic performance problems; see
  553. <a href="https://github.com/matrix-org/synapse/issues/11779">issue 11779</a> for more details.</p>
  554. <p>If your Synapse database already has had duplicate rows introduced into this table,
  555. this could fail, with either of these errors:</p>
  556. <p><strong>On Postgres:</strong></p>
  557. <pre><code>synapse.storage.background_updates - 623 - INFO - background_updates-0 - Adding index state_group_edges_unique_idx to state_group_edges
  558. synapse.storage.background_updates - 282 - ERROR - background_updates-0 - Error doing update
  559. ...
  560. psycopg2.errors.UniqueViolation: could not create unique index &quot;state_group_edges_unique_idx&quot;
  561. DETAIL: Key (state_group, prev_state_group)=(2, 1) is duplicated.
  562. </code></pre>
  563. <p>(The numbers may be different.)</p>
  564. <p><strong>On SQLite:</strong></p>
  565. <pre><code>synapse.storage.background_updates - 623 - INFO - background_updates-0 - Adding index state_group_edges_unique_idx to state_group_edges
  566. synapse.storage.background_updates - 282 - ERROR - background_updates-0 - Error doing update
  567. ...
  568. sqlite3.IntegrityError: UNIQUE constraint failed: state_group_edges.state_group, state_group_edges.prev_state_group
  569. </code></pre>
  570. <details>
  571. <summary><b>Expand this section for steps to resolve this problem</b></summary>
  572. <h3 id="on-postgres"><a class="header" href="#on-postgres">On Postgres</a></h3>
  573. <p>Connect to your database with <code>psql</code>.</p>
  574. <pre><code class="language-sql">BEGIN;
  575. DELETE FROM state_group_edges WHERE (ctid, state_group, prev_state_group) IN (
  576. SELECT row_id, state_group, prev_state_group
  577. FROM (
  578. SELECT
  579. ctid AS row_id,
  580. MIN(ctid) OVER (PARTITION BY state_group, prev_state_group) AS min_row_id,
  581. state_group,
  582. prev_state_group
  583. FROM state_group_edges
  584. ) AS t1
  585. WHERE row_id &lt;&gt; min_row_id
  586. );
  587. COMMIT;
  588. </code></pre>
  589. <h3 id="on-sqlite"><a class="header" href="#on-sqlite">On SQLite</a></h3>
  590. <p>At the command-line, use <code>sqlite3 path/to/your-homeserver-database.db</code>:</p>
  591. <pre><code class="language-sql">BEGIN;
  592. DELETE FROM state_group_edges WHERE (rowid, state_group, prev_state_group) IN (
  593. SELECT row_id, state_group, prev_state_group
  594. FROM (
  595. SELECT
  596. rowid AS row_id,
  597. MIN(rowid) OVER (PARTITION BY state_group, prev_state_group) AS min_row_id,
  598. state_group,
  599. prev_state_group
  600. FROM state_group_edges
  601. )
  602. WHERE row_id &lt;&gt; min_row_id
  603. );
  604. COMMIT;
  605. </code></pre>
  606. <h3 id="for-more-details"><a class="header" href="#for-more-details">For more details</a></h3>
  607. <p><a href="https://github.com/matrix-org/synapse/issues/11779#issuecomment-1131545970">This comment on issue 11779</a>
  608. has queries that can be used to check a database for this problem in advance.</p>
  609. </details>
  610. <h2 id="new-signature-for-the-spam-checker-callback-check_event_for_spam"><a class="header" href="#new-signature-for-the-spam-checker-callback-check_event_for_spam">New signature for the spam checker callback <code>check_event_for_spam</code></a></h2>
  611. <p>The previous signature has been deprecated.</p>
  612. <p>Whereas <code>check_event_for_spam</code> callbacks used to return <code>Union[str, bool]</code>, they should now return <code>Union[&quot;synapse.module_api.NOT_SPAM&quot;, &quot;synapse.module_api.errors.Codes&quot;]</code>.</p>
  613. <p>This is part of an ongoing refactoring of the SpamChecker API to make it less ambiguous and more powerful.</p>
  614. <p>If your module implements <code>check_event_for_spam</code> as follows:</p>
  615. <pre><code class="language-python">async def check_event_for_spam(event):
  616. if ...:
  617. # Event is spam
  618. return True
  619. # Event is not spam
  620. return False
  621. </code></pre>
  622. <p>you should rewrite it as follows:</p>
  623. <pre><code class="language-python">async def check_event_for_spam(event):
  624. if ...:
  625. # Event is spam, mark it as forbidden (you may use some more precise error
  626. # code if it is useful).
  627. return synapse.module_api.errors.Codes.FORBIDDEN
  628. # Event is not spam, mark it as such.
  629. return synapse.module_api.NOT_SPAM
  630. </code></pre>
  631. <h1 id="upgrading-to-v1590"><a class="header" href="#upgrading-to-v1590">Upgrading to v1.59.0</a></h1>
  632. <h2 id="device-name-lookup-over-federation-has-been-disabled-by-default"><a class="header" href="#device-name-lookup-over-federation-has-been-disabled-by-default">Device name lookup over federation has been disabled by default</a></h2>
  633. <p>The names of user devices are no longer visible to users on other homeservers by default.
  634. Device IDs are unaffected, as these are necessary to facilitate end-to-end encryption.</p>
  635. <p>To re-enable this functionality, set the
  636. <a href="https://matrix-org.github.io/synapse/v1.59/usage/configuration/config_documentation.html#federation"><code>allow_device_name_lookup_over_federation</code></a>
  637. homeserver config option to <code>true</code>.</p>
  638. <h2 id="deprecation-of-the-synapseappappservice-and-synapseappuser_dir-worker-application-types"><a class="header" href="#deprecation-of-the-synapseappappservice-and-synapseappuser_dir-worker-application-types">Deprecation of the <code>synapse.app.appservice</code> and <code>synapse.app.user_dir</code> worker application types</a></h2>
  639. <p>The <code>synapse.app.appservice</code> worker application type allowed you to configure a
  640. single worker to use to notify application services of new events, as long
  641. as this functionality was disabled on the main process with <code>notify_appservices: False</code>.
  642. Further, the <code>synapse.app.user_dir</code> worker application type allowed you to configure
  643. a single worker to be responsible for updating the user directory, as long as this
  644. was disabled on the main process with <code>update_user_directory: False</code>.</p>
  645. <p>To unify Synapse's worker types, the <code>synapse.app.appservice</code> worker application
  646. type and the <code>notify_appservices</code> configuration option have been deprecated.
  647. The <code>synapse.app.user_dir</code> worker application type and <code>update_user_directory</code>
  648. configuration option have also been deprecated.</p>
  649. <p>To get the same functionality as was provided by the deprecated options, it's now recommended that the <code>synapse.app.generic_worker</code>
  650. worker application type is used and that the <code>notify_appservices_from_worker</code> and/or
  651. <code>update_user_directory_from_worker</code> options are set to the name of a worker.</p>
  652. <p>For the time being, the old options can be used alongside the new options to make
  653. it easier to transition between the two configurations, however please note that:</p>
  654. <ul>
  655. <li>the options must not contradict each other (otherwise Synapse won't start); and</li>
  656. <li>the <code>notify_appservices</code> and <code>update_user_directory</code> options will be removed in a future release of Synapse.</li>
  657. </ul>
  658. <p>Please see the <a href="workers.html#notifying-application-services"><em>Notifying Application Services</em></a> and
  659. <a href="workers.html#updating-the-user-directory"><em>Updating the User Directory</em></a> sections of the worker
  660. documentation for more information.</p>
  661. <h1 id="upgrading-to-v1580"><a class="header" href="#upgrading-to-v1580">Upgrading to v1.58.0</a></h1>
  662. <h2 id="groupscommunities-feature-has-been-disabled-by-default"><a class="header" href="#groupscommunities-feature-has-been-disabled-by-default">Groups/communities feature has been disabled by default</a></h2>
  663. <p>The non-standard groups/communities feature in Synapse has been disabled by default
  664. and will be removed in Synapse v1.61.0.</p>
  665. <h1 id="upgrading-to-v1570"><a class="header" href="#upgrading-to-v1570">Upgrading to v1.57.0</a></h1>
  666. <h2 id="changes-to-database-schema-for-application-services"><a class="header" href="#changes-to-database-schema-for-application-services">Changes to database schema for application services</a></h2>
  667. <p>Synapse v1.57.0 includes a <a href="https://github.com/matrix-org/synapse/pull/12209">change</a> to the
  668. way transaction IDs are managed for application services. If your deployment uses a dedicated
  669. worker for application service traffic, <strong>it must be stopped</strong> when the database is upgraded
  670. (which normally happens when the main process is upgraded), to ensure the change is made safely
  671. without any risk of reusing transaction IDs.</p>
  672. <p>Deployments which do not use separate worker processes can be upgraded as normal. Similarly,
  673. deployments where no application services are in use can be upgraded as normal.</p>
  674. <details>
  675. <summary><b>Recovering from an incorrect upgrade</b></summary>
  676. <p>If the database schema is upgraded <em>without</em> stopping the worker responsible
  677. for AS traffic, then the following error may be given when attempting to start
  678. a Synapse worker or master process:</p>
  679. <pre><code>**********************************************************************************
  680. Error during initialisation:
  681. Postgres sequence 'application_services_txn_id_seq' is inconsistent with associated
  682. table 'application_services_txns'. This can happen if Synapse has been downgraded and
  683. then upgraded again, or due to a bad migration.
  684. To fix this error, shut down Synapse (including any and all workers)
  685. and run the following SQL:
  686. SELECT setval('application_services_txn_id_seq', (
  687. SELECT GREATEST(MAX(txn_id), 0) FROM application_services_txns
  688. ));
  689. See docs/postgres.md for more information.
  690. There may be more information in the logs.
  691. **********************************************************************************
  692. </code></pre>
  693. <p>This error may also be seen if Synapse is <em>downgraded</em> to an earlier version,
  694. and then upgraded again to v1.57.0 or later.</p>
  695. <p>In either case:</p>
  696. <ol>
  697. <li>Ensure that the worker responsible for AS traffic is stopped.</li>
  698. <li>Run the SQL command given in the error message via <code>psql</code>.</li>
  699. </ol>
  700. <p>Synapse should then start correctly.</p>
  701. </details>
  702. <h1 id="upgrading-to-v1560"><a class="header" href="#upgrading-to-v1560">Upgrading to v1.56.0</a></h1>
  703. <h2 id="open-registration-without-verification-is-now-disabled-by-default"><a class="header" href="#open-registration-without-verification-is-now-disabled-by-default">Open registration without verification is now disabled by default</a></h2>
  704. <p>Synapse will refuse to start if registration is enabled without email, captcha, or token-based verification unless the new config
  705. flag <code>enable_registration_without_verification</code> is set to &quot;true&quot;.</p>
  706. <h2 id="groupscommunities-feature-has-been-deprecated"><a class="header" href="#groupscommunities-feature-has-been-deprecated">Groups/communities feature has been deprecated</a></h2>
  707. <p>The non-standard groups/communities feature in Synapse has been deprecated and will
  708. be disabled by default in Synapse v1.58.0.</p>
  709. <p>You can test disabling it by adding the following to your homeserver configuration:</p>
  710. <pre><code class="language-yaml">experimental_features:
  711. groups_enabled: false
  712. </code></pre>
  713. <h2 id="change-in-behaviour-for-postgresql-databases-with-unsafe-locale"><a class="header" href="#change-in-behaviour-for-postgresql-databases-with-unsafe-locale">Change in behaviour for PostgreSQL databases with unsafe locale</a></h2>
  714. <p>Synapse now refuses to start when using PostgreSQL with non-<code>C</code> values for <code>COLLATE</code> and
  715. <code>CTYPE</code> unless the config flag <code>allow_unsafe_locale</code>, found in the database section of
  716. the configuration file, is set to <code>true</code>. See the <a href="https://matrix-org.github.io/synapse/latest/postgres.html#fixing-incorrect-collate-or-ctype">PostgreSQL documentation</a>
  717. for more information and instructions on how to fix a database with incorrect values.</p>
  718. <h1 id="upgrading-to-v1550"><a class="header" href="#upgrading-to-v1550">Upgrading to v1.55.0</a></h1>
  719. <h2 id="synctl-script-has-been-moved"><a class="header" href="#synctl-script-has-been-moved"><code>synctl</code> script has been moved</a></h2>
  720. <p>The <code>synctl</code> script
  721. <a href="https://github.com/matrix-org/synapse/pull/12140">has been made</a> an
  722. <a href="https://packaging.python.org/en/latest/specifications/entry-points/">entry point</a>
  723. and no longer exists at the root of Synapse's source tree. If you wish to use
  724. <code>synctl</code> to manage your homeserver, you should invoke <code>synctl</code> directly, e.g.
  725. <code>synctl start</code> instead of <code>./synctl start</code> or <code>/path/to/synctl start</code>.</p>
  726. <p>You will need to ensure <code>synctl</code> is on your <code>PATH</code>.</p>
  727. <ul>
  728. <li>This is automatically the case when using
  729. <a href="https://packages.matrix.org/debian/">Debian packages</a> or
  730. <a href="https://hub.docker.com/r/matrixdotorg/synapse">docker images</a>
  731. provided by Matrix.org.</li>
  732. <li>When installing from a wheel, sdist, or PyPI, a <code>synctl</code> executable is added
  733. to your Python installation's <code>bin</code>. This should be on your <code>PATH</code>
  734. automatically, though you might need to activate a virtual environment
  735. depending on how you installed Synapse.</li>
  736. </ul>
  737. <h2 id="compatibility-dropped-for-mjolnir-131-and-earlier"><a class="header" href="#compatibility-dropped-for-mjolnir-131-and-earlier">Compatibility dropped for Mjolnir 1.3.1 and earlier</a></h2>
  738. <p>Synapse v1.55.0 drops support for Mjolnir 1.3.1 and earlier.
  739. If you use the Mjolnir module to moderate your homeserver,
  740. please upgrade Mjolnir to version 1.3.2 or later before upgrading Synapse.</p>
  741. <h1 id="upgrading-to-v1540"><a class="header" href="#upgrading-to-v1540">Upgrading to v1.54.0</a></h1>
  742. <h2 id="legacy-structured-logging-configuration-removal"><a class="header" href="#legacy-structured-logging-configuration-removal">Legacy structured logging configuration removal</a></h2>
  743. <p>This release removes support for the <code>structured: true</code> logging configuration
  744. which was deprecated in Synapse v1.23.0. If your logging configuration contains
  745. <code>structured: true</code> then it should be modified based on the
  746. <a href="https://matrix-org.github.io/synapse/v1.56/structured_logging.html#upgrading-from-legacy-structured-logging-configuration">structured logging documentation</a>.</p>
  747. <h1 id="upgrading-to-v1530"><a class="header" href="#upgrading-to-v1530">Upgrading to v1.53.0</a></h1>
  748. <h2 id="dropping-support-for-webclient-listeners-and-non-https-web_client_location"><a class="header" href="#dropping-support-for-webclient-listeners-and-non-https-web_client_location">Dropping support for <code>webclient</code> listeners and non-HTTP(S) <code>web_client_location</code></a></h2>
  749. <p>Per the deprecation notice in Synapse v1.51.0, listeners of type <code>webclient</code>
  750. are no longer supported and configuring them is a now a configuration error.</p>
  751. <p>Configuring a non-HTTP(S) <code>web_client_location</code> configuration is is now a
  752. configuration error. Since the <code>webclient</code> listener is no longer supported, this
  753. setting only applies to the root path <code>/</code> of Synapse's web server and no longer
  754. the <code>/_matrix/client/</code> path.</p>
  755. <h2 id="stablisation-of-msc3231"><a class="header" href="#stablisation-of-msc3231">Stablisation of MSC3231</a></h2>
  756. <p>The unstable validity-check endpoint for the
  757. <a href="https://spec.matrix.org/v1.2/client-server-api/#get_matrixclientv1registermloginregistration_tokenvalidity">Registration Tokens</a>
  758. feature has been stabilised and moved from:</p>
  759. <p><code>/_matrix/client/unstable/org.matrix.msc3231/register/org.matrix.msc3231.login.registration_token/validity</code></p>
  760. <p>to:</p>
  761. <p><code>/_matrix/client/v1/register/m.login.registration_token/validity</code></p>
  762. <p>Please update any relevant reverse proxy or firewall configurations appropriately.</p>
  763. <h2 id="time-based-cache-expiry-is-now-enabled-by-default"><a class="header" href="#time-based-cache-expiry-is-now-enabled-by-default">Time-based cache expiry is now enabled by default</a></h2>
  764. <p>Formerly, entries in the cache were not evicted regardless of whether they were accessed after storing.
  765. This behavior has now changed. By default entries in the cache are now evicted after 30m of not being accessed.
  766. To change the default behavior, go to the <code>caches</code> section of the config and change the <code>expire_caches</code> and
  767. <code>cache_entry_ttl</code> flags as necessary. Please note that these flags replace the <code>expiry_time</code> flag in the config.
  768. The <code>expiry_time</code> flag will still continue to work, but it has been deprecated and will be removed in the future.</p>
  769. <h2 id="deprecation-of-capability-orgmatrixmsc3283"><a class="header" href="#deprecation-of-capability-orgmatrixmsc3283">Deprecation of <code>capability</code> <code>org.matrix.msc3283.*</code></a></h2>
  770. <p>The <code>capabilities</code> of MSC3283 from the REST API <code>/_matrix/client/r0/capabilities</code>
  771. becomes stable.</p>
  772. <p>The old <code>capabilities</code></p>
  773. <ul>
  774. <li><code>org.matrix.msc3283.set_displayname</code>,</li>
  775. <li><code>org.matrix.msc3283.set_avatar_url</code> and</li>
  776. <li><code>org.matrix.msc3283.3pid_changes</code></li>
  777. </ul>
  778. <p>are deprecated and scheduled to be removed in Synapse v1.54.0.</p>
  779. <p>The new <code>capabilities</code></p>
  780. <ul>
  781. <li><code>m.set_displayname</code>,</li>
  782. <li><code>m.set_avatar_url</code> and</li>
  783. <li><code>m.3pid_changes</code></li>
  784. </ul>
  785. <p>are now active by default.</p>
  786. <h2 id="removal-of-user_may_create_room_with_invites"><a class="header" href="#removal-of-user_may_create_room_with_invites">Removal of <code>user_may_create_room_with_invites</code></a></h2>
  787. <p>As announced with the release of <a href="#deprecation-of-the-user_may_create_room_with_invites-module-callback">Synapse 1.47.0</a>,
  788. the deprecated <code>user_may_create_room_with_invites</code> module callback has been removed.</p>
  789. <p>Modules relying on it can instead implement <a href="https://matrix-org.github.io/synapse/latest/modules/spam_checker_callbacks.html#user_may_invite"><code>user_may_invite</code></a>
  790. and use the <a href="https://github.com/matrix-org/synapse/blob/872f23b95fa980a61b0866c1475e84491991fa20/synapse/module_api/__init__.py#L869-L876"><code>get_room_state</code></a>
  791. module API to infer whether the invite is happening while creating a room (see <a href="https://github.com/matrix-org/synapse-domain-rule-checker/blob/e7d092dd9f2a7f844928771dbfd9fd24c2332e48/synapse_domain_rule_checker/__init__.py#L56-L89">this function</a>
  792. as an example). Alternately, modules can also implement <a href="https://matrix-org.github.io/synapse/latest/modules/third_party_rules_callbacks.html#on_create_room"><code>on_create_room</code></a>.</p>
  793. <h1 id="upgrading-to-v1520"><a class="header" href="#upgrading-to-v1520">Upgrading to v1.52.0</a></h1>
  794. <h2 id="twisted-security-release"><a class="header" href="#twisted-security-release">Twisted security release</a></h2>
  795. <p>Note that <a href="https://github.com/twisted/twisted/releases/tag/twisted-22.1.0">Twisted 22.1.0</a>
  796. has recently been released, which fixes a <a href="https://github.com/twisted/twisted/security/advisories/GHSA-92x2-jw7w-xvvx">security issue</a>
  797. within the Twisted library. We do not believe Synapse is affected by this vulnerability,
  798. though we advise server administrators who installed Synapse via pip to upgrade Twisted
  799. with <code>pip install --upgrade Twisted treq</code> as a matter of good practice. The Docker image
  800. <code>matrixdotorg/synapse</code> and the Debian packages from <code>packages.matrix.org</code> are using the
  801. updated library.</p>
  802. <h1 id="upgrading-to-v1510"><a class="header" href="#upgrading-to-v1510">Upgrading to v1.51.0</a></h1>
  803. <h2 id="deprecation-of-webclient-listeners-and-non-https-web_client_location"><a class="header" href="#deprecation-of-webclient-listeners-and-non-https-web_client_location">Deprecation of <code>webclient</code> listeners and non-HTTP(S) <code>web_client_location</code></a></h2>
  804. <p>Listeners of type <code>webclient</code> are deprecated and scheduled to be removed in
  805. Synapse v1.53.0.</p>
  806. <p>Similarly, a non-HTTP(S) <code>web_client_location</code> configuration is deprecated and
  807. will become a configuration error in Synapse v1.53.0.</p>
  808. <h1 id="upgrading-to-v1500"><a class="header" href="#upgrading-to-v1500">Upgrading to v1.50.0</a></h1>
  809. <h2 id="dropping-support-for-old-python-and-postgres-versions"><a class="header" href="#dropping-support-for-old-python-and-postgres-versions">Dropping support for old Python and Postgres versions</a></h2>
  810. <p>In line with our <a href="deprecation_policy.html">deprecation policy</a>,
  811. we've dropped support for Python 3.6 and PostgreSQL 9.6, as they are no
  812. longer supported upstream.</p>
  813. <p>This release of Synapse requires Python 3.7+ and PostgreSQL 10+.</p>
  814. <h1 id="upgrading-to-v1470"><a class="header" href="#upgrading-to-v1470">Upgrading to v1.47.0</a></h1>
  815. <h2 id="removal-of-old-room-admin-api"><a class="header" href="#removal-of-old-room-admin-api">Removal of old Room Admin API</a></h2>
  816. <p>The following admin APIs were deprecated in <a href="https://github.com/matrix-org/synapse/blob/v1.34.0/CHANGES.md#deprecations-and-removals">Synapse 1.34</a>
  817. (released on 2021-05-17) and have now been removed:</p>
  818. <ul>
  819. <li><code>POST /_synapse/admin/v1/&lt;room_id&gt;/delete</code></li>
  820. </ul>
  821. <p>Any scripts still using the above APIs should be converted to use the
  822. <a href="https://matrix-org.github.io/synapse/latest/admin_api/rooms.html#delete-room-api">Delete Room API</a>.</p>
  823. <h2 id="deprecation-of-the-user_may_create_room_with_invites-module-callback"><a class="header" href="#deprecation-of-the-user_may_create_room_with_invites-module-callback">Deprecation of the <code>user_may_create_room_with_invites</code> module callback</a></h2>
  824. <p>The <code>user_may_create_room_with_invites</code> is deprecated and will be removed in a future
  825. version of Synapse. Modules implementing this callback can instead implement
  826. <a href="https://matrix-org.github.io/synapse/latest/modules/spam_checker_callbacks.html#user_may_invite"><code>user_may_invite</code></a>
  827. and use the <a href="https://github.com/matrix-org/synapse/blob/872f23b95fa980a61b0866c1475e84491991fa20/synapse/module_api/__init__.py#L869-L876"><code>get_room_state</code></a>
  828. module API method to infer whether the invite is happening in the context of creating a
  829. room.</p>
  830. <p>We plan to remove this callback in January 2022.</p>
  831. <h1 id="upgrading-to-v1450"><a class="header" href="#upgrading-to-v1450">Upgrading to v1.45.0</a></h1>
  832. <h2 id="changes-required-to-media-storage-provider-modules-when-reading-from-the-synapse-configuration-object"><a class="header" href="#changes-required-to-media-storage-provider-modules-when-reading-from-the-synapse-configuration-object">Changes required to media storage provider modules when reading from the Synapse configuration object</a></h2>
  833. <p>Media storage provider modules that read from the Synapse configuration object (i.e. that
  834. read the value of <code>hs.config.[...]</code>) now need to specify the configuration section they're
  835. reading from. This means that if a module reads the value of e.g. <code>hs.config.media_store_path</code>,
  836. it needs to replace it with <code>hs.config.media.media_store_path</code>.</p>
  837. <h1 id="upgrading-to-v1440"><a class="header" href="#upgrading-to-v1440">Upgrading to v1.44.0</a></h1>
  838. <h2 id="the-url-preview-cache-is-no-longer-mirrored-to-storage-providers"><a class="header" href="#the-url-preview-cache-is-no-longer-mirrored-to-storage-providers">The URL preview cache is no longer mirrored to storage providers</a></h2>
  839. <p>The <code>url_cache/</code> and <code>url_cache_thumbnails/</code> directories in the media store are
  840. no longer mirrored to storage providers. These two directories can be safely
  841. deleted from any configured storage providers to reclaim space.</p>
  842. <h1 id="upgrading-to-v1430"><a class="header" href="#upgrading-to-v1430">Upgrading to v1.43.0</a></h1>
  843. <h2 id="the-spaces-summary-apis-can-now-be-handled-by-workers"><a class="header" href="#the-spaces-summary-apis-can-now-be-handled-by-workers">The spaces summary APIs can now be handled by workers</a></h2>
  844. <p>The <a href="https://matrix-org.github.io/synapse/latest/workers.html#available-worker-applications">available worker applications documentation</a>
  845. has been updated to reflect that calls to the <code>/spaces</code>, <code>/hierarchy</code>, and
  846. <code>/summary</code> endpoints can now be routed to workers for both client API and
  847. federation requests.</p>
  848. <h1 id="upgrading-to-v1420"><a class="header" href="#upgrading-to-v1420">Upgrading to v1.42.0</a></h1>
  849. <h2 id="removal-of-old-room-admin-api-1"><a class="header" href="#removal-of-old-room-admin-api-1">Removal of old Room Admin API</a></h2>
  850. <p>The following admin APIs were deprecated in <a href="https://github.com/matrix-org/synapse/blob/v1.25.0/CHANGES.md#removal-warning">Synapse 1.25</a>
  851. (released on 2021-01-13) and have now been removed:</p>
  852. <ul>
  853. <li><code>POST /_synapse/admin/v1/purge_room</code></li>
  854. <li><code>POST /_synapse/admin/v1/shutdown_room/&lt;room_id&gt;</code></li>
  855. </ul>
  856. <p>Any scripts still using the above APIs should be converted to use the
  857. <a href="https://matrix-org.github.io/synapse/latest/admin_api/rooms.html#delete-room-api">Delete Room API</a>.</p>
  858. <h2 id="user-interactive-authentication-fallback-templates-can-now-display-errors"><a class="header" href="#user-interactive-authentication-fallback-templates-can-now-display-errors">User-interactive authentication fallback templates can now display errors</a></h2>
  859. <p>This may affect you if you make use of custom HTML templates for the
  860. <a href="https://github.com/matrix-org/synapse/tree/develop/synapse/res/templates/recaptcha.html">reCAPTCHA (<code>synapse/res/templates/recaptcha.html</code>)</a> or
  861. <a href="https://github.com/matrix-org/synapse/tree/develop/synapse/res/templates/terms.html">terms (<code>synapse/res/templates/terms.html</code>)</a> fallback pages.</p>
  862. <p>The template is now provided an <code>error</code> variable if the authentication
  863. process failed. See the default templates linked above for an example.</p>
  864. <h2 id="removal-of-out-of-date-email-pushers"><a class="header" href="#removal-of-out-of-date-email-pushers">Removal of out-of-date email pushers</a></h2>
  865. <p>Users will stop receiving message updates via email for addresses that were
  866. once, but not still, linked to their account.</p>
  867. <h1 id="upgrading-to-v1410"><a class="header" href="#upgrading-to-v1410">Upgrading to v1.41.0</a></h1>
  868. <h2 id="add-support-for-routing-outbound-http-requests-via-a-proxy-for-federation"><a class="header" href="#add-support-for-routing-outbound-http-requests-via-a-proxy-for-federation">Add support for routing outbound HTTP requests via a proxy for federation</a></h2>
  869. <p>Since Synapse 1.6.0 (2019-11-26) you can set a proxy for outbound HTTP requests via
  870. http_proxy/https_proxy environment variables. This proxy was set for:</p>
  871. <ul>
  872. <li>push</li>
  873. <li>url previews</li>
  874. <li>phone-home stats</li>
  875. <li>recaptcha validation</li>
  876. <li>CAS auth validation</li>
  877. <li>OpenID Connect</li>
  878. <li>Federation (checking public key revocation)</li>
  879. </ul>
  880. <p>In this version we have added support for outbound requests for:</p>
  881. <ul>
  882. <li>Outbound federation</li>
  883. <li>Downloading remote media</li>
  884. <li>Fetching public keys of other servers</li>
  885. </ul>
  886. <p>These requests use the same proxy configuration. If you have a proxy configuration we
  887. recommend to verify the configuration. It may be necessary to adjust the <code>no_proxy</code>
  888. environment variable.</p>
  889. <p>See <a href="setup/forward_proxy.html">using a forward proxy with Synapse documentation</a> for
  890. details.</p>
  891. <h2 id="deprecation-of-template_dir"><a class="header" href="#deprecation-of-template_dir">Deprecation of <code>template_dir</code></a></h2>
  892. <p>The <code>template_dir</code> settings in the <code>sso</code>, <code>account_validity</code> and <code>email</code> sections of the
  893. configuration file are now deprecated. Server admins should use the new
  894. <code>templates.custom_template_directory</code> setting in the configuration file and use one single
  895. custom template directory for all aforementioned features. Template file names remain
  896. unchanged. See <a href="https://matrix-org.github.io/synapse/latest/templates.html">the related documentation</a>
  897. for more information and examples.</p>
  898. <p>We plan to remove support for these settings in October 2021.</p>
  899. <h2 id="_synapseadminv1usersuseridmedia-must-be-handled-by-media-workers"><a class="header" href="#_synapseadminv1usersuseridmedia-must-be-handled-by-media-workers"><code>/_synapse/admin/v1/users/{userId}/media</code> must be handled by media workers</a></h2>
  900. <p>The <a href="https://matrix-org.github.io/synapse/latest/workers.html#synapseappmedia_repository">media repository worker documentation</a>
  901. has been updated to reflect that calls to <code>/_synapse/admin/v1/users/{userId}/media</code>
  902. must now be handled by media repository workers. This is due to the new <code>DELETE</code> method
  903. of this endpoint modifying the media store.</p>
  904. <h1 id="upgrading-to-v1390"><a class="header" href="#upgrading-to-v1390">Upgrading to v1.39.0</a></h1>
  905. <h2 id="deprecation-of-the-current-third-party-rules-module-interface"><a class="header" href="#deprecation-of-the-current-third-party-rules-module-interface">Deprecation of the current third-party rules module interface</a></h2>
  906. <p>The current third-party rules module interface is deprecated in favour of the new generic
  907. modules system introduced in Synapse v1.37.0. Authors of third-party rules modules can refer
  908. to <a href="modules/porting_legacy_module.html">this documentation</a>
  909. to update their modules. Synapse administrators can refer to <a href="modules/index.html">this documentation</a>
  910. to update their configuration once the modules they are using have been updated.</p>
  911. <p>We plan to remove support for the current third-party rules interface in September 2021.</p>
  912. <h1 id="upgrading-to-v1380"><a class="header" href="#upgrading-to-v1380">Upgrading to v1.38.0</a></h1>
  913. <h2 id="re-indexing-of-events-table-on-postgres-databases"><a class="header" href="#re-indexing-of-events-table-on-postgres-databases">Re-indexing of <code>events</code> table on Postgres databases</a></h2>
  914. <p>This release includes a database schema update which requires re-indexing one of
  915. the larger tables in the database, <code>events</code>. This could result in increased
  916. disk I/O for several hours or days after upgrading while the migration
  917. completes. Furthermore, because we have to keep the old indexes until the new
  918. indexes are ready, it could result in a significant, temporary, increase in
  919. disk space.</p>
  920. <p>To get a rough idea of the disk space required, check the current size of one
  921. of the indexes. For example, from a <code>psql</code> shell, run the following sql:</p>
  922. <pre><code class="language-sql">SELECT pg_size_pretty(pg_relation_size('events_order_room'));
  923. </code></pre>
  924. <p>We need to rebuild <strong>four</strong> indexes, so you will need to multiply this result
  925. by four to give an estimate of the disk space required. For example, on one
  926. particular server:</p>
  927. <pre><code>synapse=# select pg_size_pretty(pg_relation_size('events_order_room'));
  928. pg_size_pretty
  929. ----------------
  930. 288 MB
  931. (1 row)
  932. </code></pre>
  933. <p>On this server, it would be wise to ensure that at least 1152MB are free.</p>
  934. <p>The additional disk space will be freed once the migration completes.</p>
  935. <p>SQLite databases are unaffected by this change.</p>
  936. <h1 id="upgrading-to-v1370"><a class="header" href="#upgrading-to-v1370">Upgrading to v1.37.0</a></h1>
  937. <h2 id="deprecation-of-the-current-spam-checker-interface"><a class="header" href="#deprecation-of-the-current-spam-checker-interface">Deprecation of the current spam checker interface</a></h2>
  938. <p>The current spam checker interface is deprecated in favour of a new generic modules system.
  939. Authors of spam checker modules can refer to [this
  940. documentation](modules/porting_legacy_module.md
  941. to update their modules. Synapse administrators can refer to <a href="modules/index.html">this
  942. documentation</a>
  943. to update their configuration once the modules they are using have been updated.</p>
  944. <p>We plan to remove support for the current spam checker interface in August 2021.</p>
  945. <p>More module interfaces will be ported over to this new generic system in future versions
  946. of Synapse.</p>
  947. <h1 id="upgrading-to-v1340"><a class="header" href="#upgrading-to-v1340">Upgrading to v1.34.0</a></h1>
  948. <h2 id="room_invite_state_types-configuration-setting"><a class="header" href="#room_invite_state_types-configuration-setting"><code>room_invite_state_types</code> configuration setting</a></h2>
  949. <p>The <code>room_invite_state_types</code> configuration setting has been deprecated
  950. and replaced with <code>room_prejoin_state</code>. See the <a href="https://github.com/matrix-org/synapse/blob/v1.34.0/docs/sample_config.yaml#L1515">sample configuration
  951. file</a>.</p>
  952. <p>If you have set <code>room_invite_state_types</code> to the default value you
  953. should simply remove it from your configuration file. The default value
  954. used to be:</p>
  955. <pre><code class="language-yaml">room_invite_state_types:
  956. - &quot;m.room.join_rules&quot;
  957. - &quot;m.room.canonical_alias&quot;
  958. - &quot;m.room.avatar&quot;
  959. - &quot;m.room.encryption&quot;
  960. - &quot;m.room.name&quot;
  961. </code></pre>
  962. <p>If you have customised this value, you should remove
  963. <code>room_invite_state_types</code> and configure <code>room_prejoin_state</code> instead.</p>
  964. <h1 id="upgrading-to-v1330"><a class="header" href="#upgrading-to-v1330">Upgrading to v1.33.0</a></h1>
  965. <h2 id="account-validity-html-templates-can-now-display-a-users-expiration-date"><a class="header" href="#account-validity-html-templates-can-now-display-a-users-expiration-date">Account Validity HTML templates can now display a user's expiration date</a></h2>
  966. <p>This may affect you if you have enabled the account validity feature,
  967. and have made use of a custom HTML template specified by the
  968. <code>account_validity.template_dir</code> or
  969. <code>account_validity.account_renewed_html_path</code> Synapse config options.</p>
  970. <p>The template can now accept an <code>expiration_ts</code> variable, which
  971. represents the unix timestamp in milliseconds for the future date of
  972. which their account has been renewed until. See the <a href="https://github.com/matrix-org/synapse/blob/release-v1.33.0/synapse/res/templates/account_renewed.html">default
  973. template</a>
  974. for an example of usage.</p>
  975. <p>ALso note that a new HTML template, <code>account_previously_renewed.html</code>,
  976. has been added. This is is shown to users when they attempt to renew
  977. their account with a valid renewal token that has already been used
  978. before. The default template contents can been found
  979. <a href="https://github.com/matrix-org/synapse/blob/release-v1.33.0/synapse/res/templates/account_previously_renewed.html">here</a>,
  980. and can also accept an <code>expiration_ts</code> variable. This template replaces
  981. the error message users would previously see upon attempting to use a
  982. valid renewal token more than once.</p>
  983. <h1 id="upgrading-to-v1320"><a class="header" href="#upgrading-to-v1320">Upgrading to v1.32.0</a></h1>
  984. <h2 id="regression-causing-connected-prometheus-instances-to-become-overwhelmed"><a class="header" href="#regression-causing-connected-prometheus-instances-to-become-overwhelmed">Regression causing connected Prometheus instances to become overwhelmed</a></h2>
  985. <p>This release introduces <a href="https://github.com/matrix-org/synapse/issues/9853">a
  986. regression</a> that can
  987. overwhelm connected Prometheus instances. This issue is not present in
  988. Synapse v1.32.0rc1.</p>
  989. <p>If you have been affected, please downgrade to 1.31.0. You then may need
  990. to remove excess writeahead logs in order for Prometheus to recover.
  991. Instructions for doing so are provided
  992. <a href="https://github.com/matrix-org/synapse/pull/9854#issuecomment-823472183">here</a>.</p>
  993. <h2 id="dropping-support-for-old-python-postgres-and-sqlite-versions"><a class="header" href="#dropping-support-for-old-python-postgres-and-sqlite-versions">Dropping support for old Python, Postgres and SQLite versions</a></h2>
  994. <p>In line with our <a href="deprecation_policy.html">deprecation policy</a>,
  995. we've dropped support for Python 3.5 and PostgreSQL 9.5, as they are no
  996. longer supported upstream.</p>
  997. <p>This release of Synapse requires Python 3.6+ and PostgresSQL 9.6+ or
  998. SQLite 3.22+.</p>
  999. <h2 id="removal-of-old-list-accounts-admin-api"><a class="header" href="#removal-of-old-list-accounts-admin-api">Removal of old List Accounts Admin API</a></h2>
  1000. <p>The deprecated v1 &quot;list accounts&quot; admin API
  1001. (<code>GET /_synapse/admin/v1/users/&lt;user_id&gt;</code>) has been removed in this
  1002. version.</p>
  1003. <p>The <a href="admin_api/user_admin_api.html#list-accounts">v2 list accounts API</a>
  1004. has been available since Synapse 1.7.0 (2019-12-13), and is accessible
  1005. under <code>GET /_synapse/admin/v2/users</code>.</p>
  1006. <p>The deprecation of the old endpoint was announced with Synapse 1.28.0
  1007. (released on 2021-02-25).</p>
  1008. <h2 id="application-services-must-use-type-mloginapplication_service-when-registering-users"><a class="header" href="#application-services-must-use-type-mloginapplication_service-when-registering-users">Application Services must use type <code>m.login.application_service</code> when registering users</a></h2>
  1009. <p>In compliance with the <a href="https://matrix.org/docs/spec/application_service/r0.1.2#server-admin-style-permissions">Application Service
  1010. spec</a>,
  1011. Application Services are now required to use the
  1012. <code>m.login.application_service</code> type when registering users via the
  1013. <code>/_matrix/client/r0/register</code> endpoint. This behaviour was deprecated in
  1014. Synapse v1.30.0.</p>
  1015. <p>Please ensure your Application Services are up to date.</p>
  1016. <h1 id="upgrading-to-v1290"><a class="header" href="#upgrading-to-v1290">Upgrading to v1.29.0</a></h1>
  1017. <h2 id="requirement-for-x-forwarded-proto-header"><a class="header" href="#requirement-for-x-forwarded-proto-header">Requirement for X-Forwarded-Proto header</a></h2>
  1018. <p>When using Synapse with a reverse proxy (in particular, when using the
  1019. <code>x_forwarded</code> option on an HTTP listener), Synapse now
  1020. expects to receive an <code>X-Forwarded-Proto</code> header on incoming
  1021. HTTP requests. If it is not set, Synapse will log a warning on each
  1022. received request.</p>
  1023. <p>To avoid the warning, administrators using a reverse proxy should ensure
  1024. that the reverse proxy sets <code>X-Forwarded-Proto</code> header to
  1025. <code>https</code> or <code>http</code> to indicate the protocol used
  1026. by the client.</p>
  1027. <p>Synapse also requires the <code>Host</code> header to be preserved.</p>
  1028. <p>See the <a href="reverse_proxy.html">reverse proxy documentation</a>, where the
  1029. example configurations have been updated to show how to set these
  1030. headers.</p>
  1031. <p>(Users of <a href="https://caddyserver.com/">Caddy</a> are unaffected, since we
  1032. believe it sets <code>X-Forwarded-Proto</code> by default.)</p>
  1033. <h1 id="upgrading-to-v1270"><a class="header" href="#upgrading-to-v1270">Upgrading to v1.27.0</a></h1>
  1034. <h2 id="changes-to-callback-uri-for-oauth2--openid-connect-and-saml2"><a class="header" href="#changes-to-callback-uri-for-oauth2--openid-connect-and-saml2">Changes to callback URI for OAuth2 / OpenID Connect and SAML2</a></h2>
  1035. <p>This version changes the URI used for callbacks from OAuth2 and SAML2
  1036. identity providers:</p>
  1037. <ul>
  1038. <li>
  1039. <p>If your server is configured for single sign-on via an OpenID
  1040. Connect or OAuth2 identity provider, you will need to add
  1041. <code>[synapse public baseurl]/_synapse/client/oidc/callback</code> to the list
  1042. of permitted &quot;redirect URIs&quot; at the identity provider.</p>
  1043. <p>See the <a href="openid.html">OpenID docs</a> for more information on setting
  1044. up OpenID Connect.</p>
  1045. </li>
  1046. <li>
  1047. <p>If your server is configured for single sign-on via a SAML2 identity
  1048. provider, you will need to add
  1049. <code>[synapse public baseurl]/_synapse/client/saml2/authn_response</code> as a
  1050. permitted &quot;ACS location&quot; (also known as &quot;allowed callback URLs&quot;)
  1051. at the identity provider.</p>
  1052. <p>The &quot;Issuer&quot; in the &quot;AuthnRequest&quot; to the SAML2 identity
  1053. provider is also updated to
  1054. <code>[synapse public baseurl]/_synapse/client/saml2/metadata.xml</code>. If
  1055. your SAML2 identity provider uses this property to validate or
  1056. otherwise identify Synapse, its configuration will need to be
  1057. updated to use the new URL. Alternatively you could create a new,
  1058. separate &quot;EntityDescriptor&quot; in your SAML2 identity provider with
  1059. the new URLs and leave the URLs in the existing &quot;EntityDescriptor&quot;
  1060. as they were.</p>
  1061. </li>
  1062. </ul>
  1063. <h2 id="changes-to-html-templates"><a class="header" href="#changes-to-html-templates">Changes to HTML templates</a></h2>
  1064. <p>The HTML templates for SSO and email notifications now have <a href="https://jinja.palletsprojects.com/en/2.11.x/api/#autoescaping">Jinja2's
  1065. autoescape</a>
  1066. enabled for files ending in <code>.html</code>, <code>.htm</code>, and <code>.xml</code>. If you have
  1067. customised these templates and see issues when viewing them you might
  1068. need to update them. It is expected that most configurations will need
  1069. no changes.</p>
  1070. <p>If you have customised the templates <em>names</em> for these templates, it is
  1071. recommended to verify they end in <code>.html</code> to ensure autoescape is
  1072. enabled.</p>
  1073. <p>The above applies to the following templates:</p>
  1074. <ul>
  1075. <li><code>add_threepid.html</code></li>
  1076. <li><code>add_threepid_failure.html</code></li>
  1077. <li><code>add_threepid_success.html</code></li>
  1078. <li><code>notice_expiry.html</code></li>
  1079. <li><code>notice_expiry.html</code></li>
  1080. <li><code>notif_mail.html</code> (which, by default, includes <code>room.html</code> and
  1081. <code>notif.html</code>)</li>
  1082. <li><code>password_reset.html</code></li>
  1083. <li><code>password_reset_confirmation.html</code></li>
  1084. <li><code>password_reset_failure.html</code></li>
  1085. <li><code>password_reset_success.html</code></li>
  1086. <li><code>registration.html</code></li>
  1087. <li><code>registration_failure.html</code></li>
  1088. <li><code>registration_success.html</code></li>
  1089. <li><code>sso_account_deactivated.html</code></li>
  1090. <li><code>sso_auth_bad_user.html</code></li>
  1091. <li><code>sso_auth_confirm.html</code></li>
  1092. <li><code>sso_auth_success.html</code></li>
  1093. <li><code>sso_error.html</code></li>
  1094. <li><code>sso_login_idp_picker.html</code></li>
  1095. <li><code>sso_redirect_confirm.html</code></li>
  1096. </ul>
  1097. <h1 id="upgrading-to-v1260"><a class="header" href="#upgrading-to-v1260">Upgrading to v1.26.0</a></h1>
  1098. <h2 id="rolling-back-to-v1250-after-a-failed-upgrade"><a class="header" href="#rolling-back-to-v1250-after-a-failed-upgrade">Rolling back to v1.25.0 after a failed upgrade</a></h2>
  1099. <p>v1.26.0 includes a lot of large changes. If something problematic
  1100. occurs, you may want to roll-back to a previous version of Synapse.
  1101. Because v1.26.0 also includes a new database schema version, reverting
  1102. that version is also required alongside the generic rollback
  1103. instructions mentioned above. In short, to roll back to v1.25.0 you need
  1104. to:</p>
  1105. <ol>
  1106. <li>
  1107. <p>Stop the server</p>
  1108. </li>
  1109. <li>
  1110. <p>Decrease the schema version in the database:</p>
  1111. <pre><code class="language-sql">UPDATE schema_version SET version = 58;
  1112. </code></pre>
  1113. </li>
  1114. <li>
  1115. <p>Delete the ignored users &amp; chain cover data:</p>
  1116. <pre><code class="language-sql">DROP TABLE IF EXISTS ignored_users;
  1117. UPDATE rooms SET has_auth_chain_index = false;
  1118. </code></pre>
  1119. <p>For PostgreSQL run:</p>
  1120. <pre><code class="language-sql">TRUNCATE event_auth_chain_links;
  1121. TRUNCATE event_auth_chains;
  1122. </code></pre>
  1123. <p>For SQLite run:</p>
  1124. <pre><code class="language-sql">DELETE FROM event_auth_chain_links;
  1125. DELETE FROM event_auth_chains;
  1126. </code></pre>
  1127. </li>
  1128. <li>
  1129. <p>Mark the deltas as not run (so they will re-run on upgrade).</p>
  1130. <pre><code class="language-sql">DELETE FROM applied_schema_deltas WHERE version = 59 AND file = &quot;59/01ignored_user.py&quot;;
  1131. DELETE FROM applied_schema_deltas WHERE version = 59 AND file = &quot;59/06chain_cover_index.sql&quot;;
  1132. </code></pre>
  1133. </li>
  1134. <li>
  1135. <p>Downgrade Synapse by following the instructions for your
  1136. installation method in the &quot;Rolling back to older versions&quot;
  1137. section above.</p>
  1138. </li>
  1139. </ol>
  1140. <h1 id="upgrading-to-v1250"><a class="header" href="#upgrading-to-v1250">Upgrading to v1.25.0</a></h1>
  1141. <h2 id="last-release-supporting-python-35"><a class="header" href="#last-release-supporting-python-35">Last release supporting Python 3.5</a></h2>
  1142. <p>This is the last release of Synapse which guarantees support with Python
  1143. 3.5, which passed its upstream End of Life date several months ago.</p>
  1144. <p>We will attempt to maintain support through March 2021, but without
  1145. guarantees.</p>
  1146. <p>In the future, Synapse will follow upstream schedules for ending support
  1147. of older versions of Python and PostgreSQL. Please upgrade to at least
  1148. Python 3.6 and PostgreSQL 9.6 as soon as possible.</p>
  1149. <h2 id="blacklisting-ip-ranges"><a class="header" href="#blacklisting-ip-ranges">Blacklisting IP ranges</a></h2>
  1150. <p>Synapse v1.25.0 includes new settings, <code>ip_range_blacklist</code> and
  1151. <code>ip_range_whitelist</code>, for controlling outgoing requests from Synapse for
  1152. federation, identity servers, push, and for checking key validity for
  1153. third-party invite events. The previous setting,
  1154. <code>federation_ip_range_blacklist</code>, is deprecated. The new
  1155. <code>ip_range_blacklist</code> defaults to private IP ranges if it is not defined.</p>
  1156. <p>If you have never customised <code>federation_ip_range_blacklist</code> it is
  1157. recommended that you remove that setting.</p>
  1158. <p>If you have customised <code>federation_ip_range_blacklist</code> you should update
  1159. the setting name to <code>ip_range_blacklist</code>.</p>
  1160. <p>If you have a custom push server that is reached via private IP space
  1161. you may need to customise <code>ip_range_blacklist</code> or <code>ip_range_whitelist</code>.</p>
  1162. <h1 id="upgrading-to-v1240"><a class="header" href="#upgrading-to-v1240">Upgrading to v1.24.0</a></h1>
  1163. <h2 id="custom-openid-connect-mapping-provider-breaking-change"><a class="header" href="#custom-openid-connect-mapping-provider-breaking-change">Custom OpenID Connect mapping provider breaking change</a></h2>
  1164. <p>This release allows the OpenID Connect mapping provider to perform
  1165. normalisation of the localpart of the Matrix ID. This allows for the
  1166. mapping provider to specify different algorithms, instead of the
  1167. <a href="https://matrix.org/docs/spec/appendices#mapping-from-other-character-sets">default
  1168. way</a>.</p>
  1169. <p>If your Synapse configuration uses a custom mapping provider
  1170. (<code>oidc_config.user_mapping_provider.module</code> is specified and
  1171. not equal to
  1172. <code>synapse.handlers.oidc_handler.JinjaOidcMappingProvider</code>)
  1173. then you <em>must</em> ensure that <code>map_user_attributes</code> of the
  1174. mapping provider performs some normalisation of the
  1175. <code>localpart</code> returned. To match previous behaviour you can
  1176. use the <code>map_username_to_mxid_localpart</code> function provided
  1177. by Synapse. An example is shown below:</p>
  1178. <pre><code class="language-python">from synapse.types import map_username_to_mxid_localpart
  1179. class MyMappingProvider:
  1180. def map_user_attributes(self, userinfo, token):
  1181. # ... your custom logic ...
  1182. sso_user_id = ...
  1183. localpart = map_username_to_mxid_localpart(sso_user_id)
  1184. return {&quot;localpart&quot;: localpart}
  1185. </code></pre>
  1186. <h2 id="removal-historical-synapse-admin-api"><a class="header" href="#removal-historical-synapse-admin-api">Removal historical Synapse Admin API</a></h2>
  1187. <p>Historically, the Synapse Admin API has been accessible under:</p>
  1188. <ul>
  1189. <li><code>/_matrix/client/api/v1/admin</code></li>
  1190. <li><code>/_matrix/client/unstable/admin</code></li>
  1191. <li><code>/_matrix/client/r0/admin</code></li>
  1192. <li><code>/_synapse/admin/v1</code></li>
  1193. </ul>
  1194. <p>The endpoints with <code>/_matrix/client/*</code> prefixes have been removed as of
  1195. v1.24.0. The Admin API is now only accessible under:</p>
  1196. <ul>
  1197. <li><code>/_synapse/admin/v1</code></li>
  1198. </ul>
  1199. <p>The only exception is the <code>/admin/whois</code> endpoint, which is
  1200. <a href="https://matrix.org/docs/spec/client_server/r0.6.1#get-matrix-client-r0-admin-whois-userid">also available via the client-server
  1201. API</a>.</p>
  1202. <p>The deprecation of the old endpoints was announced with Synapse 1.20.0
  1203. (released on 2020-09-22) and makes it easier for homeserver admins to
  1204. lock down external access to the Admin API endpoints.</p>
  1205. <h1 id="upgrading-to-v1230"><a class="header" href="#upgrading-to-v1230">Upgrading to v1.23.0</a></h1>
  1206. <h2 id="structured-logging-configuration-breaking-changes"><a class="header" href="#structured-logging-configuration-breaking-changes">Structured logging configuration breaking changes</a></h2>
  1207. <p>This release deprecates use of the <code>structured: true</code> logging
  1208. configuration for structured logging. If your logging configuration
  1209. contains <code>structured: true</code> then it should be modified based on the
  1210. <a href="https://matrix-org.github.io/synapse/v1.56/structured_logging.html#upgrading-from-legacy-structured-logging-configuration">structured logging documentation</a>.</p>
  1211. <p>The <code>structured</code> and <code>drains</code> logging options are now deprecated and
  1212. should be replaced by standard logging configuration of <code>handlers</code> and
  1213. <code>formatters</code>.</p>
  1214. <p>A future will release of Synapse will make using <code>structured: true</code> an
  1215. error.</p>
  1216. <h1 id="upgrading-to-v1220"><a class="header" href="#upgrading-to-v1220">Upgrading to v1.22.0</a></h1>
  1217. <h2 id="thirdpartyeventrules-breaking-changes"><a class="header" href="#thirdpartyeventrules-breaking-changes">ThirdPartyEventRules breaking changes</a></h2>
  1218. <p>This release introduces a backwards-incompatible change to modules
  1219. making use of <code>ThirdPartyEventRules</code> in Synapse. If you make use of a
  1220. module defined under the <code>third_party_event_rules</code> config option, please
  1221. make sure it is updated to handle the below change:</p>
  1222. <p>The <code>http_client</code> argument is no longer passed to modules as they are
  1223. initialised. Instead, modules are expected to make use of the
  1224. <code>http_client</code> property on the <code>ModuleApi</code> class. Modules are now passed
  1225. a <code>module_api</code> argument during initialisation, which is an instance of
  1226. <code>ModuleApi</code>. <code>ModuleApi</code> instances have a <code>http_client</code> property which
  1227. acts the same as the <code>http_client</code> argument previously passed to
  1228. <code>ThirdPartyEventRules</code> modules.</p>
  1229. <h1 id="upgrading-to-v1210"><a class="header" href="#upgrading-to-v1210">Upgrading to v1.21.0</a></h1>
  1230. <h2 id="forwarding-_synapseclient-through-your-reverse-proxy"><a class="header" href="#forwarding-_synapseclient-through-your-reverse-proxy">Forwarding <code>/_synapse/client</code> through your reverse proxy</a></h2>
  1231. <p>The <a href="reverse_proxy.html">reverse proxy documentation</a>
  1232. has been updated to include reverse proxy directives for
  1233. <code>/_synapse/client/*</code> endpoints. As the user password reset flow now uses
  1234. endpoints under this prefix, <strong>you must update your reverse proxy
  1235. configurations for user password reset to work</strong>.</p>
  1236. <p>Additionally, note that the <a href="workers.html">Synapse worker documentation</a> has been updated to</p>
  1237. <p>: state that the <code>/_synapse/client/password_reset/email/submit_token</code>
  1238. endpoint can be handled</p>
  1239. <p>by all workers. If you make use of Synapse's worker feature, please
  1240. update your reverse proxy configuration to reflect this change.</p>
  1241. <h2 id="new-html-templates"><a class="header" href="#new-html-templates">New HTML templates</a></h2>
  1242. <p>A new HTML template,
  1243. <a href="https://github.com/matrix-org/synapse/blob/develop/synapse/res/templates/password_reset_confirmation.html">password_reset_confirmation.html</a>,
  1244. has been added to the <code>synapse/res/templates</code> directory. If you are
  1245. using a custom template directory, you may want to copy the template
  1246. over and modify it.</p>
  1247. <p>Note that as of v1.20.0, templates do not need to be included in custom
  1248. template directories for Synapse to start. The default templates will be
  1249. used if a custom template cannot be found.</p>
  1250. <p>This page will appear to the user after clicking a password reset link
  1251. that has been emailed to them.</p>
  1252. <p>To complete password reset, the page must include a way to make a
  1253. <code>POST</code> request to
  1254. <code>/_synapse/client/password_reset/{medium}/submit_token</code> with the query
  1255. parameters from the original link, presented as a URL-encoded form. See
  1256. the file itself for more details.</p>
  1257. <h2 id="updated-single-sign-on-html-templates"><a class="header" href="#updated-single-sign-on-html-templates">Updated Single Sign-on HTML Templates</a></h2>
  1258. <p>The <code>saml_error.html</code> template was removed from Synapse and replaced
  1259. with the <code>sso_error.html</code> template. If your Synapse is configured to use
  1260. SAML and a custom <code>sso_redirect_confirm_template_dir</code> configuration then
  1261. any customisations of the <code>saml_error.html</code> template will need to be
  1262. merged into the <code>sso_error.html</code> template. These templates are similar,
  1263. but the parameters are slightly different:</p>
  1264. <ul>
  1265. <li>The <code>msg</code> parameter should be renamed to <code>error_description</code>.</li>
  1266. <li>There is no longer a <code>code</code> parameter for the response code.</li>
  1267. <li>A string <code>error</code> parameter is available that includes a short hint
  1268. of why a user is seeing the error page.</li>
  1269. </ul>
  1270. <h1 id="upgrading-to-v1180"><a class="header" href="#upgrading-to-v1180">Upgrading to v1.18.0</a></h1>
  1271. <h2 id="docker--py3-suffix-will-be-removed-in-future-versions"><a class="header" href="#docker--py3-suffix-will-be-removed-in-future-versions">Docker <code>-py3</code> suffix will be removed in future versions</a></h2>
  1272. <p>From 10th August 2020, we will no longer publish Docker images with the
  1273. <code>-py3</code> tag suffix. The images tagged with the
  1274. <code>-py3</code> suffix have been identical to the non-suffixed tags
  1275. since release 0.99.0, and the suffix is obsolete.</p>
  1276. <p>On 10th August, we will remove the <code>latest-py3</code> tag.
  1277. Existing per-release tags (such as <code>v1.18.0-py3</code> will not
  1278. be removed, but no new <code>-py3</code> tags will be added.</p>
  1279. <p>Scripts relying on the <code>-py3</code> suffix will need to be
  1280. updated.</p>
  1281. <h2 id="redis-replication-is-now-recommended-in-lieu-of-tcp-replication"><a class="header" href="#redis-replication-is-now-recommended-in-lieu-of-tcp-replication">Redis replication is now recommended in lieu of TCP replication</a></h2>
  1282. <p>When setting up worker processes, we now recommend the use of a Redis
  1283. server for replication. <strong>The old direct TCP connection method is
  1284. deprecated and will be removed in a future release.</strong> See
  1285. the <a href="https://matrix-org.github.io/synapse/v1.66/workers.html">worker documentation</a> for more details.</p>
  1286. <h1 id="upgrading-to-v1140"><a class="header" href="#upgrading-to-v1140">Upgrading to v1.14.0</a></h1>
  1287. <p>This version includes a database update which is run as part of the
  1288. upgrade, and which may take a couple of minutes in the case of a large
  1289. server. Synapse will not respond to HTTP requests while this update is
  1290. taking place.</p>
  1291. <h1 id="upgrading-to-v1130"><a class="header" href="#upgrading-to-v1130">Upgrading to v1.13.0</a></h1>
  1292. <h2 id="incorrect-database-migration-in-old-synapse-versions"><a class="header" href="#incorrect-database-migration-in-old-synapse-versions">Incorrect database migration in old synapse versions</a></h2>
  1293. <p>A bug was introduced in Synapse 1.4.0 which could cause the room
  1294. directory to be incomplete or empty if Synapse was upgraded directly
  1295. from v1.2.1 or earlier, to versions between v1.4.0 and v1.12.x.</p>
  1296. <p>This will <em>not</em> be a problem for Synapse installations which were:</p>
  1297. <p>: - created at v1.4.0 or later,
  1298. - upgraded via v1.3.x, or
  1299. - upgraded straight from v1.2.1 or earlier to v1.13.0 or later.</p>
  1300. <p>If completeness of the room directory is a concern, installations which
  1301. are affected can be repaired as follows:</p>
  1302. <ol>
  1303. <li>
  1304. <p>Run the following sql from a <code>psql</code> or
  1305. <code>sqlite3</code> console:</p>
  1306. <pre><code class="language-sql">INSERT INTO background_updates (update_name, progress_json, depends_on) VALUES
  1307. ('populate_stats_process_rooms', '{}', 'current_state_events_membership');
  1308. INSERT INTO background_updates (update_name, progress_json, depends_on) VALUES
  1309. ('populate_stats_process_users', '{}', 'populate_stats_process_rooms');
  1310. </code></pre>
  1311. </li>
  1312. <li>
  1313. <p>Restart synapse.</p>
  1314. </li>
  1315. </ol>
  1316. <h2 id="new-single-sign-on-html-templates"><a class="header" href="#new-single-sign-on-html-templates">New Single Sign-on HTML Templates</a></h2>
  1317. <p>New templates (<code>sso_auth_confirm.html</code>, <code>sso_auth_success.html</code>, and
  1318. <code>sso_account_deactivated.html</code>) were added to Synapse. If your Synapse
  1319. is configured to use SSO and a custom
  1320. <code>sso_redirect_confirm_template_dir</code> configuration then these templates
  1321. will need to be copied from
  1322. <a href="https://github.com/matrix-org/synapse/tree/develop/synapse/res/templates"><code>synapse/res/templates</code></a> into that directory.</p>
  1323. <h2 id="synapse-sso-plugins-method-deprecation"><a class="header" href="#synapse-sso-plugins-method-deprecation">Synapse SSO Plugins Method Deprecation</a></h2>
  1324. <p>Plugins using the <code>complete_sso_login</code> method of
  1325. <code>synapse.module_api.ModuleApi</code> should update to using the async/await
  1326. version <code>complete_sso_login_async</code> which includes additional checks. The
  1327. non-async version is considered deprecated.</p>
  1328. <h2 id="rolling-back-to-v1124-after-a-failed-upgrade"><a class="header" href="#rolling-back-to-v1124-after-a-failed-upgrade">Rolling back to v1.12.4 after a failed upgrade</a></h2>
  1329. <p>v1.13.0 includes a lot of large changes. If something problematic
  1330. occurs, you may want to roll-back to a previous version of Synapse.
  1331. Because v1.13.0 also includes a new database schema version, reverting
  1332. that version is also required alongside the generic rollback
  1333. instructions mentioned above. In short, to roll back to v1.12.4 you need
  1334. to:</p>
  1335. <ol>
  1336. <li>
  1337. <p>Stop the server</p>
  1338. </li>
  1339. <li>
  1340. <p>Decrease the schema version in the database:</p>
  1341. <pre><code class="language-sql">UPDATE schema_version SET version = 57;
  1342. </code></pre>
  1343. </li>
  1344. <li>
  1345. <p>Downgrade Synapse by following the instructions for your
  1346. installation method in the &quot;Rolling back to older versions&quot;
  1347. section above.</p>
  1348. </li>
  1349. </ol>
  1350. <h1 id="upgrading-to-v1120"><a class="header" href="#upgrading-to-v1120">Upgrading to v1.12.0</a></h1>
  1351. <p>This version includes a database update which is run as part of the
  1352. upgrade, and which may take some time (several hours in the case of a
  1353. large server). Synapse will not respond to HTTP requests while this
  1354. update is taking place.</p>
  1355. <p>This is only likely to be a problem in the case of a server which is
  1356. participating in many rooms.</p>
  1357. <ol start="0">
  1358. <li>
  1359. <p>As with all upgrades, it is recommended that you have a recent
  1360. backup of your database which can be used for recovery in the event
  1361. of any problems.</p>
  1362. </li>
  1363. <li>
  1364. <p>As an initial check to see if you will be affected, you can try
  1365. running the following query from the <code>psql</code> or
  1366. <code>sqlite3</code> console. It is safe to run it while Synapse is
  1367. still running.</p>
  1368. <pre><code class="language-sql">SELECT MAX(q.v) FROM (
  1369. SELECT (
  1370. SELECT ej.json AS v
  1371. FROM state_events se INNER JOIN event_json ej USING (event_id)
  1372. WHERE se.room_id=rooms.room_id AND se.type='m.room.create' AND se.state_key=''
  1373. LIMIT 1
  1374. ) FROM rooms WHERE rooms.room_version IS NULL
  1375. ) q;
  1376. </code></pre>
  1377. <p>This query will take about the same amount of time as the upgrade
  1378. process: ie, if it takes 5 minutes, then it is likely that Synapse
  1379. will be unresponsive for 5 minutes during the upgrade.</p>
  1380. <p>If you consider an outage of this duration to be acceptable, no
  1381. further action is necessary and you can simply start Synapse 1.12.0.</p>
  1382. <p>If you would prefer to reduce the downtime, continue with the steps
  1383. below.</p>
  1384. </li>
  1385. <li>
  1386. <p>The easiest workaround for this issue is to manually create a new
  1387. index before upgrading. On PostgreSQL, his can be done as follows:</p>
  1388. <pre><code class="language-sql">CREATE INDEX CONCURRENTLY tmp_upgrade_1_12_0_index
  1389. ON state_events(room_id) WHERE type = 'm.room.create';
  1390. </code></pre>
  1391. <p>The above query may take some time, but is also safe to run while
  1392. Synapse is running.</p>
  1393. <p>We assume that no SQLite users have databases large enough to be
  1394. affected. If you <em>are</em> affected, you can run a similar query,
  1395. omitting the <code>CONCURRENTLY</code> keyword. Note however that this
  1396. operation may in itself cause Synapse to stop running for some time.
  1397. Synapse admins are reminded that <a href="postgres.html">SQLite is not recommended for use
  1398. outside a test environment</a>.</p>
  1399. </li>
  1400. <li>
  1401. <p>Once the index has been created, the <code>SELECT</code> query in step 1 above
  1402. should complete quickly. It is therefore safe to upgrade to Synapse
  1403. 1.12.0.</p>
  1404. </li>
  1405. <li>
  1406. <p>Once Synapse 1.12.0 has successfully started and is responding to
  1407. HTTP requests, the temporary index can be removed:</p>
  1408. <pre><code class="language-sql">DROP INDEX tmp_upgrade_1_12_0_index;
  1409. </code></pre>
  1410. </li>
  1411. </ol>
  1412. <h1 id="upgrading-to-v1100"><a class="header" href="#upgrading-to-v1100">Upgrading to v1.10.0</a></h1>
  1413. <p>Synapse will now log a warning on start up if used with a PostgreSQL
  1414. database that has a non-recommended locale set.</p>
  1415. <p>See <a href="postgres.html">Postgres</a> for details.</p>
  1416. <h1 id="upgrading-to-v180"><a class="header" href="#upgrading-to-v180">Upgrading to v1.8.0</a></h1>
  1417. <p>Specifying a <code>log_file</code> config option will now cause Synapse to refuse
  1418. to start, and should be replaced by with the <code>log_config</code> option.
  1419. Support for the <code>log_file</code> option was removed in v1.3.0 and has since
  1420. had no effect.</p>
  1421. <h1 id="upgrading-to-v170"><a class="header" href="#upgrading-to-v170">Upgrading to v1.7.0</a></h1>
  1422. <p>In an attempt to configure Synapse in a privacy preserving way, the
  1423. default behaviours of <code>allow_public_rooms_without_auth</code> and
  1424. <code>allow_public_rooms_over_federation</code> have been inverted. This means that
  1425. by default, only authenticated users querying the Client/Server API will
  1426. be able to query the room directory, and relatedly that the server will
  1427. not share room directory information with other servers over federation.</p>
  1428. <p>If your installation does not explicitly set these settings one way or
  1429. the other and you want either setting to be <code>true</code> then it will
  1430. necessary to update your homeserver configuration file accordingly.</p>
  1431. <p>For more details on the surrounding context see our
  1432. <a href="https://matrix.org/blog/2019/11/09/avoiding-unwelcome-visitors-on-private-matrix-servers">explainer</a>.</p>
  1433. <h1 id="upgrading-to-v150"><a class="header" href="#upgrading-to-v150">Upgrading to v1.5.0</a></h1>
  1434. <p>This release includes a database migration which may take several
  1435. minutes to complete if there are a large number (more than a million or
  1436. so) of entries in the <code>devices</code> table. This is only likely to a be a
  1437. problem on very large installations.</p>
  1438. <h1 id="upgrading-to-v140"><a class="header" href="#upgrading-to-v140">Upgrading to v1.4.0</a></h1>
  1439. <h2 id="new-custom-templates"><a class="header" href="#new-custom-templates">New custom templates</a></h2>
  1440. <p>If you have configured a custom template directory with the
  1441. <code>email.template_dir</code> option, be aware that there are new templates
  1442. regarding registration and threepid management (see below) that must be
  1443. included.</p>
  1444. <ul>
  1445. <li><code>registration.html</code> and <code>registration.txt</code></li>
  1446. <li><code>registration_success.html</code> and <code>registration_failure.html</code></li>
  1447. <li><code>add_threepid.html</code> and <code>add_threepid.txt</code></li>
  1448. <li><code>add_threepid_failure.html</code> and <code>add_threepid_success.html</code></li>
  1449. </ul>
  1450. <p>Synapse will expect these files to exist inside the configured template
  1451. directory, and <strong>will fail to start</strong> if they are absent. To view the
  1452. default templates, see
  1453. <a href="https://github.com/matrix-org/synapse/tree/master/synapse/res/templates">synapse/res/templates</a>.</p>
  1454. <h2 id="3pid-verification-changes"><a class="header" href="#3pid-verification-changes">3pid verification changes</a></h2>
  1455. <p><strong>Note: As of this release, users will be unable to add phone numbers or
  1456. email addresses to their accounts, without changes to the Synapse
  1457. configuration. This includes adding an email address during
  1458. registration.</strong></p>
  1459. <p>It is possible for a user to associate an email address or phone number
  1460. with their account, for a number of reasons:</p>
  1461. <ul>
  1462. <li>for use when logging in, as an alternative to the user id.</li>
  1463. <li>in the case of email, as an alternative contact to help with account
  1464. recovery.</li>
  1465. <li>in the case of email, to receive notifications of missed messages.</li>
  1466. </ul>
  1467. <p>Before an email address or phone number can be added to a user's
  1468. account, or before such an address is used to carry out a
  1469. password-reset, Synapse must confirm the operation with the owner of the
  1470. email address or phone number. It does this by sending an email or text
  1471. giving the user a link or token to confirm receipt. This process is
  1472. known as '3pid verification'. ('3pid', or 'threepid', stands for
  1473. third-party identifier, and we use it to refer to external identifiers
  1474. such as email addresses and phone numbers.)</p>
  1475. <p>Previous versions of Synapse delegated the task of 3pid verification to
  1476. an identity server by default. In most cases this server is <code>vector.im</code>
  1477. or <code>matrix.org</code>.</p>
  1478. <p>In Synapse 1.4.0, for security and privacy reasons, the homeserver will
  1479. no longer delegate this task to an identity server by default. Instead,
  1480. the server administrator will need to explicitly decide how they would
  1481. like the verification messages to be sent.</p>
  1482. <p>In the medium term, the <code>vector.im</code> and <code>matrix.org</code> identity servers
  1483. will disable support for delegated 3pid verification entirely. However,
  1484. in order to ease the transition, they will retain the capability for a
  1485. limited period. Delegated email verification will be disabled on Monday
  1486. 2nd December 2019 (giving roughly 2 months notice). Disabling delegated
  1487. SMS verification will follow some time after that once SMS verification
  1488. support lands in Synapse.</p>
  1489. <p>Once delegated 3pid verification support has been disabled in the
  1490. <code>vector.im</code> and <code>matrix.org</code> identity servers, all Synapse versions that
  1491. depend on those instances will be unable to verify email and phone
  1492. numbers through them. There are no imminent plans to remove delegated
  1493. 3pid verification from Sydent generally. (Sydent is the identity server
  1494. project that backs the <code>vector.im</code> and <code>matrix.org</code> instances).</p>
  1495. <h3 id="email"><a class="header" href="#email">Email</a></h3>
  1496. <p>Following upgrade, to continue verifying email (e.g. as part of the
  1497. registration process), admins can either:-</p>
  1498. <ul>
  1499. <li>Configure Synapse to use an email server.</li>
  1500. <li>Run or choose an identity server which allows delegated email
  1501. verification and delegate to it.</li>
  1502. </ul>
  1503. <h4 id="configure-smtp-in-synapse"><a class="header" href="#configure-smtp-in-synapse">Configure SMTP in Synapse</a></h4>
  1504. <p>To configure an SMTP server for Synapse, modify the configuration
  1505. section headed <code>email</code>, and be sure to have at least the
  1506. <code>smtp_host, smtp_port</code> and <code>notif_from</code> fields filled out.</p>
  1507. <p>You may also need to set <code>smtp_user</code>, <code>smtp_pass</code>, and
  1508. <code>require_transport_security</code>.</p>
  1509. <p>See the <a href="usage/configuration/homeserver_sample_config.html">sample configuration file</a>
  1510. for more details on these settings.</p>
  1511. <h4 id="delegate-email-to-an-identity-server"><a class="header" href="#delegate-email-to-an-identity-server">Delegate email to an identity server</a></h4>
  1512. <p>Some admins will wish to continue using email verification as part of
  1513. the registration process, but will not immediately have an appropriate
  1514. SMTP server at hand.</p>
  1515. <p>To this end, we will continue to support email verification delegation
  1516. via the <code>vector.im</code> and <code>matrix.org</code> identity servers for two months.
  1517. Support for delegated email verification will be disabled on Monday 2nd
  1518. December.</p>
  1519. <p>The <code>account_threepid_delegates</code> dictionary defines whether the
  1520. homeserver should delegate an external server (typically an <a href="https://matrix.org/docs/spec/identity_service/r0.2.1">identity
  1521. server</a>) to handle
  1522. sending confirmation messages via email and SMS.</p>
  1523. <p>So to delegate email verification, in <code>homeserver.yaml</code>, set
  1524. <code>account_threepid_delegates.email</code> to the base URL of an identity
  1525. server. For example:</p>
  1526. <pre><code class="language-yaml">account_threepid_delegates:
  1527. email: https://example.com # Delegate email sending to example.com
  1528. </code></pre>
  1529. <p>Note that <code>account_threepid_delegates.email</code> replaces the deprecated
  1530. <code>email.trust_identity_server_for_password_resets</code>: if
  1531. <code>email.trust_identity_server_for_password_resets</code> is set to <code>true</code>, and
  1532. <code>account_threepid_delegates.email</code> is not set, then the first entry in
  1533. <code>trusted_third_party_id_servers</code> will be used as the
  1534. <code>account_threepid_delegate</code> for email. This is to ensure compatibility
  1535. with existing Synapse installs that set up external server handling for
  1536. these tasks before v1.4.0. If
  1537. <code>email.trust_identity_server_for_password_resets</code> is <code>true</code> and no
  1538. trusted identity server domains are configured, Synapse will report an
  1539. error and refuse to start.</p>
  1540. <p>If <code>email.trust_identity_server_for_password_resets</code> is <code>false</code> or
  1541. absent and no <code>email</code> delegate is configured in
  1542. <code>account_threepid_delegates</code>, then Synapse will send email verification
  1543. messages itself, using the configured SMTP server (see above). that
  1544. type.</p>
  1545. <h3 id="phone-numbers"><a class="header" href="#phone-numbers">Phone numbers</a></h3>
  1546. <p>Synapse does not support phone-number verification itself, so the only
  1547. way to maintain the ability for users to add phone numbers to their
  1548. accounts will be by continuing to delegate phone number verification to
  1549. the <code>matrix.org</code> and <code>vector.im</code> identity servers (or another identity
  1550. server that supports SMS sending).</p>
  1551. <p>The <code>account_threepid_delegates</code> dictionary defines whether the
  1552. homeserver should delegate an external server (typically an <a href="https://matrix.org/docs/spec/identity_service/r0.2.1">identity
  1553. server</a>) to handle
  1554. sending confirmation messages via email and SMS.</p>
  1555. <p>So to delegate phone number verification, in <code>homeserver.yaml</code>, set
  1556. <code>account_threepid_delegates.msisdn</code> to the base URL of an identity
  1557. server. For example:</p>
  1558. <pre><code class="language-yaml">account_threepid_delegates:
  1559. msisdn: https://example.com # Delegate sms sending to example.com
  1560. </code></pre>
  1561. <p>The <code>matrix.org</code> and <code>vector.im</code> identity servers will continue to
  1562. support delegated phone number verification via SMS until such time as
  1563. it is possible for admins to configure their servers to perform phone
  1564. number verification directly. More details will follow in a future
  1565. release.</p>
  1566. <h2 id="rolling-back-to-v131"><a class="header" href="#rolling-back-to-v131">Rolling back to v1.3.1</a></h2>
  1567. <p>If you encounter problems with v1.4.0, it should be possible to roll
  1568. back to v1.3.1, subject to the following:</p>
  1569. <ul>
  1570. <li>
  1571. <p>The 'room statistics' engine was heavily reworked in this release
  1572. (see <a href="https://github.com/matrix-org/synapse/pull/5971">#5971</a>),
  1573. including significant changes to the database schema, which are not
  1574. easily reverted. This will cause the room statistics engine to stop
  1575. updating when you downgrade.</p>
  1576. <p>The room statistics are essentially unused in v1.3.1 (in future
  1577. versions of Synapse, they will be used to populate the room
  1578. directory), so there should be no loss of functionality. However,
  1579. the statistics engine will write errors to the logs, which can be
  1580. avoided by setting the following in <code>homeserver.yaml</code>:</p>
  1581. <pre><code class="language-yaml">stats:
  1582. enabled: false
  1583. </code></pre>
  1584. <p>Don't forget to re-enable it when you upgrade again, in preparation
  1585. for its use in the room directory!</p>
  1586. </li>
  1587. </ul>
  1588. <h1 id="upgrading-to-v120"><a class="header" href="#upgrading-to-v120">Upgrading to v1.2.0</a></h1>
  1589. <p>Some counter metrics have been renamed, with the old names deprecated.
  1590. See <a href="metrics-howto.html#renaming-of-metrics--deprecation-of-old-names-in-12">the metrics
  1591. documentation</a>
  1592. for details.</p>
  1593. <h1 id="upgrading-to-v110"><a class="header" href="#upgrading-to-v110">Upgrading to v1.1.0</a></h1>
  1594. <p>Synapse v1.1.0 removes support for older Python and PostgreSQL versions,
  1595. as outlined in <a href="https://matrix.org/blog/2019/04/08/synapse-deprecating-postgres-9-4-and-python-2-x">our deprecation
  1596. notice</a>.</p>
  1597. <h2 id="minimum-python-version"><a class="header" href="#minimum-python-version">Minimum Python Version</a></h2>
  1598. <p>Synapse v1.1.0 has a minimum Python requirement of Python 3.5. Python
  1599. 3.6 or Python 3.7 are recommended as they have improved internal string
  1600. handling, significantly reducing memory usage.</p>
  1601. <p>If you use current versions of the Matrix.org-distributed Debian
  1602. packages or Docker images, action is not required.</p>
  1603. <p>If you install Synapse in a Python virtual environment, please see
  1604. &quot;Upgrading to v0.34.0&quot; for notes on setting up a new virtualenv under
  1605. Python 3.</p>
  1606. <h2 id="minimum-postgresql-version"><a class="header" href="#minimum-postgresql-version">Minimum PostgreSQL Version</a></h2>
  1607. <p>If using PostgreSQL under Synapse, you will need to use PostgreSQL 9.5
  1608. or above. Please see the <a href="https://www.postgresql.org/docs/11/upgrading.html">PostgreSQL
  1609. documentation</a> for
  1610. more details on upgrading your database.</p>
  1611. <h1 id="upgrading-to-v10"><a class="header" href="#upgrading-to-v10">Upgrading to v1.0</a></h1>
  1612. <h2 id="validation-of-tls-certificates"><a class="header" href="#validation-of-tls-certificates">Validation of TLS certificates</a></h2>
  1613. <p>Synapse v1.0 is the first release to enforce validation of TLS
  1614. certificates for the federation API. It is therefore essential that your
  1615. certificates are correctly configured.</p>
  1616. <p>Note, v1.0 installations will also no longer be able to federate with
  1617. servers that have not correctly configured their certificates.</p>
  1618. <p>In rare cases, it may be desirable to disable certificate checking: for
  1619. example, it might be essential to be able to federate with a given
  1620. legacy server in a closed federation. This can be done in one of two
  1621. ways:-</p>
  1622. <ul>
  1623. <li>Configure the global switch <code>federation_verify_certificates</code> to
  1624. <code>false</code>.</li>
  1625. <li>Configure a whitelist of server domains to trust via
  1626. <code>federation_certificate_verification_whitelist</code>.</li>
  1627. </ul>
  1628. <p>See the <a href="usage/configuration/homeserver_sample_config.html">sample configuration file</a>
  1629. for more details on these settings.</p>
  1630. <h2 id="email-1"><a class="header" href="#email-1">Email</a></h2>
  1631. <p>When a user requests a password reset, Synapse will send an email to the
  1632. user to confirm the request.</p>
  1633. <p>Previous versions of Synapse delegated the job of sending this email to
  1634. an identity server. If the identity server was somehow malicious or
  1635. became compromised, it would be theoretically possible to hijack an
  1636. account through this means.</p>
  1637. <p>Therefore, by default, Synapse v1.0 will send the confirmation email
  1638. itself. If Synapse is not configured with an SMTP server, password reset
  1639. via email will be disabled.</p>
  1640. <p>To configure an SMTP server for Synapse, modify the configuration
  1641. section headed <code>email</code>, and be sure to have at least the <code>smtp_host</code>,
  1642. <code>smtp_port</code> and <code>notif_from</code> fields filled out. You may also need to set
  1643. <code>smtp_user</code>, <code>smtp_pass</code>, and <code>require_transport_security</code>.</p>
  1644. <p>If you are absolutely certain that you wish to continue using an
  1645. identity server for password resets, set
  1646. <code>trust_identity_server_for_password_resets</code> to <code>true</code>.</p>
  1647. <p>See the <a href="usage/configuration/homeserver_sample_config.html">sample configuration file</a>
  1648. for more details on these settings.</p>
  1649. <h2 id="new-email-templates"><a class="header" href="#new-email-templates">New email templates</a></h2>
  1650. <p>Some new templates have been added to the default template directory for the purpose of
  1651. the homeserver sending its own password reset emails. If you have configured a
  1652. custom <code>template_dir</code> in your Synapse config, these files will need to be added.</p>
  1653. <p><code>password_reset.html</code> and <code>password_reset.txt</code> are HTML and plain text
  1654. templates respectively that contain the contents of what will be emailed
  1655. to the user upon attempting to reset their password via email.
  1656. <code>password_reset_success.html</code> and <code>password_reset_failure.html</code> are HTML
  1657. files that the content of which (assuming no redirect URL is set) will
  1658. be shown to the user after they attempt to click the link in the email
  1659. sent to them.</p>
  1660. <h1 id="upgrading-to-v0990"><a class="header" href="#upgrading-to-v0990">Upgrading to v0.99.0</a></h1>
  1661. <p>Please be aware that, before Synapse v1.0 is released around March 2019,
  1662. you will need to replace any self-signed certificates with those
  1663. verified by a root CA. Information on how to do so can be found at the
  1664. ACME docs.</p>
  1665. <h1 id="upgrading-to-v0340"><a class="header" href="#upgrading-to-v0340">Upgrading to v0.34.0</a></h1>
  1666. <ol>
  1667. <li>
  1668. <p>This release is the first to fully support Python 3. Synapse will
  1669. now run on Python versions 3.5, or 3.6 (as well as 2.7). We
  1670. recommend switching to Python 3, as it has been shown to give
  1671. performance improvements.</p>
  1672. <p>For users who have installed Synapse into a virtualenv, we recommend
  1673. doing this by creating a new virtualenv. For example:</p>
  1674. <pre><code class="language-sh">virtualenv -p python3 ~/synapse/env3
  1675. source ~/synapse/env3/bin/activate
  1676. pip install matrix-synapse
  1677. </code></pre>
  1678. <p>You can then start synapse as normal, having activated the new
  1679. virtualenv:</p>
  1680. <pre><code class="language-sh">cd ~/synapse
  1681. source env3/bin/activate
  1682. synctl start
  1683. </code></pre>
  1684. <p>Users who have installed from distribution packages should see the
  1685. relevant package documentation. See below for notes on Debian
  1686. packages.</p>
  1687. <ul>
  1688. <li>
  1689. <p>When upgrading to Python 3, you <strong>must</strong> make sure that your log
  1690. files are configured as UTF-8, by adding <code>encoding: utf8</code> to the
  1691. <code>RotatingFileHandler</code> configuration (if you have one) in your
  1692. <code>&lt;server&gt;.log.config</code> file. For example, if your <code>log.config</code>
  1693. file contains:</p>
  1694. <pre><code class="language-yaml">handlers:
  1695. file:
  1696. class: logging.handlers.RotatingFileHandler
  1697. formatter: precise
  1698. filename: homeserver.log
  1699. maxBytes: 104857600
  1700. backupCount: 10
  1701. filters: [context]
  1702. console:
  1703. class: logging.StreamHandler
  1704. formatter: precise
  1705. filters: [context]
  1706. </code></pre>
  1707. <p>Then you should update this to be:</p>
  1708. <pre><code class="language-yaml">handlers:
  1709. file:
  1710. class: logging.handlers.RotatingFileHandler
  1711. formatter: precise
  1712. filename: homeserver.log
  1713. maxBytes: 104857600
  1714. backupCount: 10
  1715. filters: [context]
  1716. encoding: utf8
  1717. console:
  1718. class: logging.StreamHandler
  1719. formatter: precise
  1720. filters: [context]
  1721. </code></pre>
  1722. <p>There is no need to revert this change if downgrading to
  1723. Python 2.</p>
  1724. </li>
  1725. </ul>
  1726. <p>We are also making available Debian packages which will run Synapse
  1727. on Python 3. You can switch to these packages with
  1728. <code>apt-get install matrix-synapse-py3</code>, however, please read
  1729. <a href="https://github.com/matrix-org/synapse/blob/release-v0.34.0/debian/NEWS">debian/NEWS</a>
  1730. before doing so. The existing <code>matrix-synapse</code> packages will
  1731. continue to use Python 2 for the time being.</p>
  1732. </li>
  1733. <li>
  1734. <p>This release removes the <code>riot.im</code> from the default list of trusted
  1735. identity servers.</p>
  1736. <p>If <code>riot.im</code> is in your homeserver's list of
  1737. <code>trusted_third_party_id_servers</code>, you should remove it. It was added
  1738. in case a hypothetical future identity server was put there. If you
  1739. don't remove it, users may be unable to deactivate their accounts.</p>
  1740. </li>
  1741. <li>
  1742. <p>This release no longer installs the (unmaintained) Matrix Console
  1743. web client as part of the default installation. It is possible to
  1744. re-enable it by installing it separately and setting the
  1745. <code>web_client_location</code> config option, but please consider switching
  1746. to another client.</p>
  1747. </li>
  1748. </ol>
  1749. <h1 id="upgrading-to-v0337"><a class="header" href="#upgrading-to-v0337">Upgrading to v0.33.7</a></h1>
  1750. <p>This release removes the example email notification templates from
  1751. <code>res/templates</code> (they are now internal to the python package). This
  1752. should only affect you if you (a) deploy your Synapse instance from a
  1753. git checkout or a github snapshot URL, and (b) have email notifications
  1754. enabled.</p>
  1755. <p>If you have email notifications enabled, you should ensure that
  1756. <code>email.template_dir</code> is either configured to point at a directory where
  1757. you have installed customised templates, or leave it unset to use the
  1758. default templates.</p>
  1759. <h1 id="upgrading-to-v0273"><a class="header" href="#upgrading-to-v0273">Upgrading to v0.27.3</a></h1>
  1760. <p>This release expands the anonymous usage stats sent if the opt-in
  1761. <code>report_stats</code> configuration is set to <code>true</code>. We now capture RSS memory
  1762. and cpu use at a very coarse level. This requires administrators to
  1763. install the optional <code>psutil</code> python module.</p>
  1764. <p>We would appreciate it if you could assist by ensuring this module is
  1765. available and <code>report_stats</code> is enabled. This will let us see if
  1766. performance changes to synapse are having an impact to the general
  1767. community.</p>
  1768. <h1 id="upgrading-to-v0150"><a class="header" href="#upgrading-to-v0150">Upgrading to v0.15.0</a></h1>
  1769. <p>If you want to use the new URL previewing API
  1770. (<code>/_matrix/media/r0/preview_url</code>) then you have to explicitly enable it
  1771. in the config and update your dependencies dependencies. See README.rst
  1772. for details.</p>
  1773. <h1 id="upgrading-to-v0110"><a class="header" href="#upgrading-to-v0110">Upgrading to v0.11.0</a></h1>
  1774. <p>This release includes the option to send anonymous usage stats to
  1775. matrix.org, and requires that administrators explictly opt in or out by
  1776. setting the <code>report_stats</code> option to either <code>true</code> or <code>false</code>.</p>
  1777. <p>We would really appreciate it if you could help our project out by
  1778. reporting anonymized usage statistics from your homeserver. Only very
  1779. basic aggregate data (e.g. number of users) will be reported, but it
  1780. helps us to track the growth of the Matrix community, and helps us to
  1781. make Matrix a success, as well as to convince other networks that they
  1782. should peer with us.</p>
  1783. <h1 id="upgrading-to-v090"><a class="header" href="#upgrading-to-v090">Upgrading to v0.9.0</a></h1>
  1784. <p>Application services have had a breaking API change in this version.</p>
  1785. <p>They can no longer register themselves with a home server using the AS
  1786. HTTP API. This decision was made because a compromised application
  1787. service with free reign to register any regex in effect grants full
  1788. read/write access to the home server if a regex of <code>.*</code> is used. An
  1789. attack where a compromised AS re-registers itself with <code>.*</code> was deemed
  1790. too big of a security risk to ignore, and so the ability to register
  1791. with the HS remotely has been removed.</p>
  1792. <p>It has been replaced by specifying a list of application service
  1793. registrations in <code>homeserver.yaml</code>:</p>
  1794. <pre><code class="language-yaml">app_service_config_files: [&quot;registration-01.yaml&quot;, &quot;registration-02.yaml&quot;]
  1795. </code></pre>
  1796. <p>Where <code>registration-01.yaml</code> looks like:</p>
  1797. <pre><code class="language-yaml">url: &lt;String&gt; # e.g. &quot;https://my.application.service.com&quot;
  1798. as_token: &lt;String&gt;
  1799. hs_token: &lt;String&gt;
  1800. sender_localpart: &lt;String&gt; # This is a new field which denotes the user_id localpart when using the AS token
  1801. namespaces:
  1802. users:
  1803. - exclusive: &lt;Boolean&gt;
  1804. regex: &lt;String&gt; # e.g. &quot;@prefix_.*&quot;
  1805. aliases:
  1806. - exclusive: &lt;Boolean&gt;
  1807. regex: &lt;String&gt;
  1808. rooms:
  1809. - exclusive: &lt;Boolean&gt;
  1810. regex: &lt;String&gt;
  1811. </code></pre>
  1812. <h1 id="upgrading-to-v080"><a class="header" href="#upgrading-to-v080">Upgrading to v0.8.0</a></h1>
  1813. <p>Servers which use captchas will need to add their public key to:</p>
  1814. <pre><code>static/client/register/register_config.js
  1815. window.matrixRegistrationConfig = {
  1816. recaptcha_public_key: &quot;YOUR_PUBLIC_KEY&quot;
  1817. };
  1818. </code></pre>
  1819. <p>This is required in order to support registration fallback (typically
  1820. used on mobile devices).</p>
  1821. <h1 id="upgrading-to-v070"><a class="header" href="#upgrading-to-v070">Upgrading to v0.7.0</a></h1>
  1822. <p>New dependencies are:</p>
  1823. <ul>
  1824. <li>pydenticon</li>
  1825. <li>simplejson</li>
  1826. <li>syutil</li>
  1827. <li>matrix-angular-sdk</li>
  1828. </ul>
  1829. <p>To pull in these dependencies in a virtual env, run:</p>
  1830. <pre><code>python synapse/python_dependencies.py | xargs -n 1 pip install
  1831. </code></pre>
  1832. <h1 id="upgrading-to-v060"><a class="header" href="#upgrading-to-v060">Upgrading to v0.6.0</a></h1>
  1833. <p>To pull in new dependencies, run:</p>
  1834. <pre><code>python setup.py develop --user
  1835. </code></pre>
  1836. <p>This update includes a change to the database schema. To upgrade you
  1837. first need to upgrade the database by running:</p>
  1838. <pre><code>python scripts/upgrade_db_to_v0.6.0.py &lt;db&gt; &lt;server_name&gt; &lt;signing_key&gt;
  1839. </code></pre>
  1840. <p>Where <code>&lt;db&gt;</code> is the location of the database,
  1841. <code>&lt;server_name&gt;</code> is the server name as specified in the
  1842. synapse configuration, and <code>&lt;signing_key&gt;</code> is the location
  1843. of the signing key as specified in the synapse configuration.</p>
  1844. <p>This may take some time to complete. Failures of signatures and content
  1845. hashes can safely be ignored.</p>
  1846. <h1 id="upgrading-to-v051"><a class="header" href="#upgrading-to-v051">Upgrading to v0.5.1</a></h1>
  1847. <p>Depending on precisely when you installed v0.5.0 you may have ended up
  1848. with a stale release of the reference matrix webclient installed as a
  1849. python module. To uninstall it and ensure you are depending on the
  1850. latest module, please run:</p>
  1851. <pre><code>$ pip uninstall syweb
  1852. </code></pre>
  1853. <h1 id="upgrading-to-v050"><a class="header" href="#upgrading-to-v050">Upgrading to v0.5.0</a></h1>
  1854. <p>The webclient has been split out into a seperate repository/pacakage in
  1855. this release. Before you restart your homeserver you will need to pull
  1856. in the webclient package by running:</p>
  1857. <pre><code>python setup.py develop --user
  1858. </code></pre>
  1859. <p>This release completely changes the database schema and so requires
  1860. upgrading it before starting the new version of the homeserver.</p>
  1861. <p>The script &quot;database-prepare-for-0.5.0.sh&quot; should be used to upgrade
  1862. the database. This will save all user information, such as logins and
  1863. profiles, but will otherwise purge the database. This includes messages,
  1864. which rooms the home server was a member of and room alias mappings.</p>
  1865. <p>If you would like to keep your history, please take a copy of your
  1866. database file and ask for help in #matrix:matrix.org. The upgrade
  1867. process is, unfortunately, non trivial and requires human intervention
  1868. to resolve any resulting conflicts during the upgrade process.</p>
  1869. <p>Before running the command the homeserver should be first completely
  1870. shutdown. To run it, simply specify the location of the database, e.g.:</p>
  1871. <blockquote>
  1872. <p>./scripts/database-prepare-for-0.5.0.sh &quot;homeserver.db&quot;</p>
  1873. </blockquote>
  1874. <p>Once this has successfully completed it will be safe to restart the
  1875. homeserver. You may notice that the homeserver takes a few seconds
  1876. longer to restart than usual as it reinitializes the database.</p>
  1877. <p>On startup of the new version, users can either rejoin remote rooms
  1878. using room aliases or by being reinvited. Alternatively, if any other
  1879. homeserver sends a message to a room that the homeserver was previously
  1880. in the local HS will automatically rejoin the room.</p>
  1881. <h1 id="upgrading-to-v040"><a class="header" href="#upgrading-to-v040">Upgrading to v0.4.0</a></h1>
  1882. <p>This release needs an updated syutil version. Run:</p>
  1883. <pre><code>python setup.py develop
  1884. </code></pre>
  1885. <p>You will also need to upgrade your configuration as the signing key
  1886. format has changed. Run:</p>
  1887. <pre><code>python -m synapse.app.homeserver --config-path &lt;CONFIG&gt; --generate-config
  1888. </code></pre>
  1889. <h1 id="upgrading-to-v030"><a class="header" href="#upgrading-to-v030">Upgrading to v0.3.0</a></h1>
  1890. <p>This registration API now closely matches the login API. This introduces
  1891. a bit more backwards and forwards between the HS and the client, but
  1892. this improves the overall flexibility of the API. You can now GET on
  1893. /register to retrieve a list of valid registration flows. Upon choosing
  1894. one, they are submitted in the same way as login, e.g:</p>
  1895. <pre><code>{
  1896. type: m.login.password,
  1897. user: foo,
  1898. password: bar
  1899. }
  1900. </code></pre>
  1901. <p>The default HS supports 2 flows, with and without Identity Server email
  1902. authentication. Enabling captcha on the HS will add in an extra step to
  1903. all flows: <code>m.login.recaptcha</code> which must be completed before you can
  1904. transition to the next stage. There is a new login type:
  1905. <code>m.login.email.identity</code> which contains the <code>threepidCreds</code> key which
  1906. were previously sent in the original register request. For more
  1907. information on this, see the specification.</p>
  1908. <h2 id="web-client"><a class="header" href="#web-client">Web Client</a></h2>
  1909. <p>The VoIP specification has changed between v0.2.0 and v0.3.0. Users
  1910. should refresh any browser tabs to get the latest web client code. Users
  1911. on v0.2.0 of the web client will not be able to call those on v0.3.0 and
  1912. vice versa.</p>
  1913. <h1 id="upgrading-to-v020"><a class="header" href="#upgrading-to-v020">Upgrading to v0.2.0</a></h1>
  1914. <p>The home server now requires setting up of SSL config before it can run.
  1915. To automatically generate default config use:</p>
  1916. <pre><code>$ python synapse/app/homeserver.py \
  1917. --server-name machine.my.domain.name \
  1918. --bind-port 8448 \
  1919. --config-path homeserver.config \
  1920. --generate-config
  1921. </code></pre>
  1922. <p>This config can be edited if desired, for example to specify a different
  1923. SSL certificate to use. Once done you can run the home server using:</p>
  1924. <pre><code>$ python synapse/app/homeserver.py --config-path homeserver.config
  1925. </code></pre>
  1926. <p>See the README.rst for more information.</p>
  1927. <p>Also note that some config options have been renamed, including:</p>
  1928. <ul>
  1929. <li>&quot;host&quot; to &quot;server-name&quot;</li>
  1930. <li>&quot;database&quot; to &quot;database-path&quot;</li>
  1931. <li>&quot;port&quot; to &quot;bind-port&quot; and &quot;unsecure-port&quot;</li>
  1932. </ul>
  1933. <h1 id="upgrading-to-v001"><a class="header" href="#upgrading-to-v001">Upgrading to v0.0.1</a></h1>
  1934. <p>This release completely changes the database schema and so requires
  1935. upgrading it before starting the new version of the homeserver.</p>
  1936. <p>The script &quot;database-prepare-for-0.0.1.sh&quot; should be used to upgrade
  1937. the database. This will save all user information, such as logins and
  1938. profiles, but will otherwise purge the database. This includes messages,
  1939. which rooms the home server was a member of and room alias mappings.</p>
  1940. <p>Before running the command the homeserver should be first completely
  1941. shutdown. To run it, simply specify the location of the database, e.g.:</p>
  1942. <blockquote>
  1943. <p>./scripts/database-prepare-for-0.0.1.sh &quot;homeserver.db&quot;</p>
  1944. </blockquote>
  1945. <p>Once this has successfully completed it will be safe to restart the
  1946. homeserver. You may notice that the homeserver takes a few seconds
  1947. longer to restart than usual as it reinitializes the database.</p>
  1948. <p>On startup of the new version, users can either rejoin remote rooms
  1949. using room aliases or by being reinvited. Alternatively, if any other
  1950. homeserver sends a message to a room that the homeserver was previously
  1951. in the local HS will automatically rejoin the room.</p>
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