deploy: 8de3283ebe

develop/print.html

@@ -1843,6 +1843,22 @@ v1.61.0.</p>
 <tr><td>v1.92.0 – v1.97.0</td><td>v1.90.0</td></tr>
 <tr><td>v1.98.0 – v1.101.0</td><td>v1.96.0</td></tr>
 </tbody></table>
+<h2 id="upgrading-from-a-very-old-version"><a class="header" href="#upgrading-from-a-very-old-version">Upgrading from a very old version</a></h2>
+<p>You need to read all of the upgrade notes for each version between your current
+version and the latest so that you can update your dependencies, environment,
+config files, etc. if necessary. But you do not need to perform an
+upgrade to each individual version that was missed.</p>
+<p>We do not have a list of which versions must be installed. Instead, we recommend
+that you upgrade through each incompatible database schema version, which would
+give you the ability to roll back the maximum number of versions should anything
+go wrong. See <a href="upgrade.html#rolling-back-to-older-versions">Rolling back to older versions</a>
+above.</p>
+<p>Additionally, new versions of Synapse will occasionally run database migrations
+and background updates to update the database. Synapse will not start until
+database migrations are complete. You should wait until background updates from
+each upgrade are complete before moving on to the next upgrade, to avoid
+stacking them up. You can monitor the currently running background updates with
+<a href="usage/administration/admin_api/background_updates.html#status">the Admin API</a>.</p>
 <h1 id="upgrading-to-v11000"><a class="header" href="#upgrading-to-v11000">Upgrading to v1.100.0</a></h1>
 <h2 id="minimum-supported-rust-version"><a class="header" href="#minimum-supported-rust-version">Minimum supported Rust version</a></h2>
 <p>The minimum supported Rust version has been increased from v1.61.0 to v1.65.0.
@@ -16344,6 +16360,9 @@ for file in $source_directory/*; do
     fi
 done
 </code></pre>
+<h2 id="how-do-i-upgrade-from-a-very-old-version-of-synapse-to-the-latest"><a class="header" href="#how-do-i-upgrade-from-a-very-old-version-of-synapse-to-the-latest">How do I upgrade from a very old version of Synapse to the latest?</a></h2>
+<p>See <a href="usage/administration/../../upgrade.html#upgrading-from-a-very-old-version">this</a> section in the
+upgrade docs.</p>
 <h2 id="manually-resetting-passwords"><a class="header" href="#manually-resetting-passwords">Manually resetting passwords</a></h2>
 <p>Users can reset their password through their client. Alternatively, a server admin
 can reset a user's password using the <a href="usage/administration/../../admin_api/user_admin_api.html#reset-password">admin API</a>.</p>

develop/searchindex.js

@@ -1 +1 @@
-Object.assign(window.search, {"doc_urls":["welcome_and_overview.html#introduction","welcome_and_overview.html#installing-and-using-synapse","welcome_and_overview.html#developing-on-synapse","welcome_and_overview.html#reporting-a-security-vulnerability","setup/installation.html#installation-instructions","setup/installation.html#choosing-your-server-name","setup/installation.html#installing-synapse","setup/installation.html#prebuilt-packages","setup/installation.html#installing-as-a-python-module-from-pypi","setup/installation.html#setting-up-synapse","setup/installation.html#using-postgresql","setup/installation.html#tls-certificates","setup/installation.html#client-well-known-uri","setup/installation.html#email","setup/installation.html#registering-a-user","setup/installation.html#setting-up-a-turn-server","setup/installation.html#url-previews","setup/installation.html#troubleshooting-installation","postgres.html#using-postgres","postgres.html#install-postgres-client-libraries","postgres.html#set-up-database","postgres.html#synapse-config","postgres.html#tuning-postgres","postgres.html#porting-from-sqlite","postgres.html#overview","postgres.html#using-the-port-script","postgres.html#troubleshooting","postgres.html#alternative-auth-methods","postgres.html#fixing-incorrect-collate-or-ctype","postgres.html#fixing-inconsistent-sequences-error","reverse_proxy.html#using-a-reverse-proxy-with-synapse","reverse_proxy.html#homeserver-configuration","reverse_proxy.html#reverse-proxy-configuration-examples","reverse_proxy.html#nginx","reverse_proxy.html#caddy-v2","reverse_proxy.html#apache","reverse_proxy.html#haproxy","reverse_proxy.html#relayd","reverse_proxy.html#health-check-endpoint","reverse_proxy.html#synapse-administration-endpoints","setup/forward_proxy.html#using-a-forward-proxy-with-synapse","setup/forward_proxy.html#configure","setup/forward_proxy.html#connection-types","setup/forward_proxy.html#troubleshooting","turn-howto.html#overview","turn-howto.html#requirements","turn-howto.html#synapse-setup","turn-howto.html#troubleshooting","setup/turn/coturn.html#coturn-turn-server","setup/turn/coturn.html#coturn-setup","setup/turn/coturn.html#initial-installation","setup/turn/coturn.html#configuration","setup/turn/eturnal.html#eturnal-turn-server","setup/turn/eturnal.html#eturnal-setup","setup/turn/eturnal.html#initial-installation","setup/turn/eturnal.html#configuration","setup/turn/eturnal.html#eturnalctl-opterations-script","delegate.html#delegation-of-incoming-federation-traffic","delegate.html#well-known-delegation","delegate.html#external-server","delegate.html#serving-a-well-knownmatrixserver-file-with-synapse","delegate.html#srv-dns-record-delegation","delegate.html#delegation-faq","delegate.html#when-do-i-need-delegation","delegate.html#should-i-use-a-reverse-proxy-for-federation-traffic","upgrade.html#upgrading-synapse","upgrade.html#rolling-back-to-older-versions","upgrade.html#upgrading-to-v11000","upgrade.html#minimum-supported-rust-version","upgrade.html#upgrading-to-v1930","upgrade.html#minimum-supported-rust-version-1","upgrade.html#upgrading-to-v1900","upgrade.html#app-service-query-parameter-authorization-is-now-a-configuration-option","upgrade.html#upgrading-to-v1890","upgrade.html#removal-of-unspecced-user-property-for-register","upgrade.html#upgrading-to-v1880","upgrade.html#minimum-supported-python-version","upgrade.html#removal-of-worker_replication_-settings","upgrade.html#upgrading-to-v1860","upgrade.html#minimum-supported-rust-version-2","upgrade.html#upgrading-to-v1850","upgrade.html#application-service-registration-with-user-property-deprecation","upgrade.html#upgrading-to-v1840","upgrade.html#deprecation-of-worker_replication_-configuration-settings","upgrade.html#example-change","upgrade.html#upgrading-to-v1810","upgrade.html#application-service-path--authentication-deprecations","upgrade.html#upgrading-to-v1800","upgrade.html#reporting-events-error-code-change","upgrade.html#upgrading-to-v1790","upgrade.html#the-on_threepid_bind-module-callback-method-has-been-deprecated","upgrade.html#upgrading-to-v1780","upgrade.html#deprecate-the-_synapseadminv1mediadelete-admin-api","upgrade.html#upgrading-to-v1760","upgrade.html#faster-joins-are-enabled-by-default","upgrade.html#changes-to-the-account-data-replication-streams","upgrade.html#minimum-version-of-poetry-is-now-132","upgrade.html#upgrading-to-v1740","upgrade.html#unicode-support-in-user-search","upgrade.html#user-directory-rebuild","upgrade.html#upgrading-to-v1730","upgrade.html#legacy-prometheus-metric-names-have-now-been-removed","upgrade.html#upgrading-to-v1720","upgrade.html#dropping-support-for-postgresql-10","upgrade.html#upgrading-to-v1710","upgrade.html#removal-of-the-generate_short_term_login_token-module-api-method","upgrade.html#changes-to-the-events-received-by-application-services-interest","upgrade.html#legacy-prometheus-metric-names-are-now-disabled-by-default","upgrade.html#upgrading-to-v1690","upgrade.html#changLine truncated
+Object.assign(window.search, {"doc_urls":["welcome_and_overview.html#introduction","welcome_and_overview.html#installing-and-using-synapse","welcome_and_overview.html#developing-on-synapse","welcome_and_overview.html#reporting-a-security-vulnerability","setup/installation.html#installation-instructions","setup/installation.html#choosing-your-server-name","setup/installation.html#installing-synapse","setup/installation.html#prebuilt-packages","setup/installation.html#installing-as-a-python-module-from-pypi","setup/installation.html#setting-up-synapse","setup/installation.html#using-postgresql","setup/installation.html#tls-certificates","setup/installation.html#client-well-known-uri","setup/installation.html#email","setup/installation.html#registering-a-user","setup/installation.html#setting-up-a-turn-server","setup/installation.html#url-previews","setup/installation.html#troubleshooting-installation","postgres.html#using-postgres","postgres.html#install-postgres-client-libraries","postgres.html#set-up-database","postgres.html#synapse-config","postgres.html#tuning-postgres","postgres.html#porting-from-sqlite","postgres.html#overview","postgres.html#using-the-port-script","postgres.html#troubleshooting","postgres.html#alternative-auth-methods","postgres.html#fixing-incorrect-collate-or-ctype","postgres.html#fixing-inconsistent-sequences-error","reverse_proxy.html#using-a-reverse-proxy-with-synapse","reverse_proxy.html#homeserver-configuration","reverse_proxy.html#reverse-proxy-configuration-examples","reverse_proxy.html#nginx","reverse_proxy.html#caddy-v2","reverse_proxy.html#apache","reverse_proxy.html#haproxy","reverse_proxy.html#relayd","reverse_proxy.html#health-check-endpoint","reverse_proxy.html#synapse-administration-endpoints","setup/forward_proxy.html#using-a-forward-proxy-with-synapse","setup/forward_proxy.html#configure","setup/forward_proxy.html#connection-types","setup/forward_proxy.html#troubleshooting","turn-howto.html#overview","turn-howto.html#requirements","turn-howto.html#synapse-setup","turn-howto.html#troubleshooting","setup/turn/coturn.html#coturn-turn-server","setup/turn/coturn.html#coturn-setup","setup/turn/coturn.html#initial-installation","setup/turn/coturn.html#configuration","setup/turn/eturnal.html#eturnal-turn-server","setup/turn/eturnal.html#eturnal-setup","setup/turn/eturnal.html#initial-installation","setup/turn/eturnal.html#configuration","setup/turn/eturnal.html#eturnalctl-opterations-script","delegate.html#delegation-of-incoming-federation-traffic","delegate.html#well-known-delegation","delegate.html#external-server","delegate.html#serving-a-well-knownmatrixserver-file-with-synapse","delegate.html#srv-dns-record-delegation","delegate.html#delegation-faq","delegate.html#when-do-i-need-delegation","delegate.html#should-i-use-a-reverse-proxy-for-federation-traffic","upgrade.html#upgrading-synapse","upgrade.html#rolling-back-to-older-versions","upgrade.html#upgrading-from-a-very-old-version","upgrade.html#upgrading-to-v11000","upgrade.html#minimum-supported-rust-version","upgrade.html#upgrading-to-v1930","upgrade.html#minimum-supported-rust-version-1","upgrade.html#upgrading-to-v1900","upgrade.html#app-service-query-parameter-authorization-is-now-a-configuration-option","upgrade.html#upgrading-to-v1890","upgrade.html#removal-of-unspecced-user-property-for-register","upgrade.html#upgrading-to-v1880","upgrade.html#minimum-supported-python-version","upgrade.html#removal-of-worker_replication_-settings","upgrade.html#upgrading-to-v1860","upgrade.html#minimum-supported-rust-version-2","upgrade.html#upgrading-to-v1850","upgrade.html#application-service-registration-with-user-property-deprecation","upgrade.html#upgrading-to-v1840","upgrade.html#deprecation-of-worker_replication_-configuration-settings","upgrade.html#example-change","upgrade.html#upgrading-to-v1810","upgrade.html#application-service-path--authentication-deprecations","upgrade.html#upgrading-to-v1800","upgrade.html#reporting-events-error-code-change","upgrade.html#upgrading-to-v1790","upgrade.html#the-on_threepid_bind-module-callback-method-has-been-deprecated","upgrade.html#upgrading-to-v1780","upgrade.html#deprecate-the-_synapseadminv1mediadelete-admin-api","upgrade.html#upgrading-to-v1760","upgrade.html#faster-joins-are-enabled-by-default","upgrade.html#changes-to-the-account-data-replication-streams","upgrade.html#minimum-version-of-poetry-is-now-132","upgrade.html#upgrading-to-v1740","upgrade.html#unicode-support-in-user-search","upgrade.html#user-directory-rebuild","upgrade.html#upgrading-to-v1730","upgrade.html#legacy-prometheus-metric-names-have-now-been-removed","upgrade.html#upgrading-to-v1720","upgrade.html#dropping-support-for-postgresql-10","upgrade.html#upgrading-to-v1710","upgrade.html#removal-of-the-generate_short_term_login_token-module-api-method","upgrade.html#changes-to-the-events-received-by-application-services-interest","upgrade.html#legacy-prometheus-metric-names-are-now-disabled-by-default","upgLine truncated

develop/searchindex.json

@@ -1 +1 @@
-{"doc_urls":["welcome_and_overview.html#introduction","welcome_and_overview.html#installing-and-using-synapse","welcome_and_overview.html#developing-on-synapse","welcome_and_overview.html#reporting-a-security-vulnerability","setup/installation.html#installation-instructions","setup/installation.html#choosing-your-server-name","setup/installation.html#installing-synapse","setup/installation.html#prebuilt-packages","setup/installation.html#installing-as-a-python-module-from-pypi","setup/installation.html#setting-up-synapse","setup/installation.html#using-postgresql","setup/installation.html#tls-certificates","setup/installation.html#client-well-known-uri","setup/installation.html#email","setup/installation.html#registering-a-user","setup/installation.html#setting-up-a-turn-server","setup/installation.html#url-previews","setup/installation.html#troubleshooting-installation","postgres.html#using-postgres","postgres.html#install-postgres-client-libraries","postgres.html#set-up-database","postgres.html#synapse-config","postgres.html#tuning-postgres","postgres.html#porting-from-sqlite","postgres.html#overview","postgres.html#using-the-port-script","postgres.html#troubleshooting","postgres.html#alternative-auth-methods","postgres.html#fixing-incorrect-collate-or-ctype","postgres.html#fixing-inconsistent-sequences-error","reverse_proxy.html#using-a-reverse-proxy-with-synapse","reverse_proxy.html#homeserver-configuration","reverse_proxy.html#reverse-proxy-configuration-examples","reverse_proxy.html#nginx","reverse_proxy.html#caddy-v2","reverse_proxy.html#apache","reverse_proxy.html#haproxy","reverse_proxy.html#relayd","reverse_proxy.html#health-check-endpoint","reverse_proxy.html#synapse-administration-endpoints","setup/forward_proxy.html#using-a-forward-proxy-with-synapse","setup/forward_proxy.html#configure","setup/forward_proxy.html#connection-types","setup/forward_proxy.html#troubleshooting","turn-howto.html#overview","turn-howto.html#requirements","turn-howto.html#synapse-setup","turn-howto.html#troubleshooting","setup/turn/coturn.html#coturn-turn-server","setup/turn/coturn.html#coturn-setup","setup/turn/coturn.html#initial-installation","setup/turn/coturn.html#configuration","setup/turn/eturnal.html#eturnal-turn-server","setup/turn/eturnal.html#eturnal-setup","setup/turn/eturnal.html#initial-installation","setup/turn/eturnal.html#configuration","setup/turn/eturnal.html#eturnalctl-opterations-script","delegate.html#delegation-of-incoming-federation-traffic","delegate.html#well-known-delegation","delegate.html#external-server","delegate.html#serving-a-well-knownmatrixserver-file-with-synapse","delegate.html#srv-dns-record-delegation","delegate.html#delegation-faq","delegate.html#when-do-i-need-delegation","delegate.html#should-i-use-a-reverse-proxy-for-federation-traffic","upgrade.html#upgrading-synapse","upgrade.html#rolling-back-to-older-versions","upgrade.html#upgrading-to-v11000","upgrade.html#minimum-supported-rust-version","upgrade.html#upgrading-to-v1930","upgrade.html#minimum-supported-rust-version-1","upgrade.html#upgrading-to-v1900","upgrade.html#app-service-query-parameter-authorization-is-now-a-configuration-option","upgrade.html#upgrading-to-v1890","upgrade.html#removal-of-unspecced-user-property-for-register","upgrade.html#upgrading-to-v1880","upgrade.html#minimum-supported-python-version","upgrade.html#removal-of-worker_replication_-settings","upgrade.html#upgrading-to-v1860","upgrade.html#minimum-supported-rust-version-2","upgrade.html#upgrading-to-v1850","upgrade.html#application-service-registration-with-user-property-deprecation","upgrade.html#upgrading-to-v1840","upgrade.html#deprecation-of-worker_replication_-configuration-settings","upgrade.html#example-change","upgrade.html#upgrading-to-v1810","upgrade.html#application-service-path--authentication-deprecations","upgrade.html#upgrading-to-v1800","upgrade.html#reporting-events-error-code-change","upgrade.html#upgrading-to-v1790","upgrade.html#the-on_threepid_bind-module-callback-method-has-been-deprecated","upgrade.html#upgrading-to-v1780","upgrade.html#deprecate-the-_synapseadminv1mediadelete-admin-api","upgrade.html#upgrading-to-v1760","upgrade.html#faster-joins-are-enabled-by-default","upgrade.html#changes-to-the-account-data-replication-streams","upgrade.html#minimum-version-of-poetry-is-now-132","upgrade.html#upgrading-to-v1740","upgrade.html#unicode-support-in-user-search","upgrade.html#user-directory-rebuild","upgrade.html#upgrading-to-v1730","upgrade.html#legacy-prometheus-metric-names-have-now-been-removed","upgrade.html#upgrading-to-v1720","upgrade.html#dropping-support-for-postgresql-10","upgrade.html#upgrading-to-v1710","upgrade.html#removal-of-the-generate_short_term_login_token-module-api-method","upgrade.html#changes-to-the-events-received-by-application-services-interest","upgrade.html#legacy-prometheus-metric-names-are-now-disabled-by-default","upgrade.html#upgrading-to-v1690","upgrade.html#changes-to-the-receipts-replicatioLine truncated
+{"doc_urls":["welcome_and_overview.html#introduction","welcome_and_overview.html#installing-and-using-synapse","welcome_and_overview.html#developing-on-synapse","welcome_and_overview.html#reporting-a-security-vulnerability","setup/installation.html#installation-instructions","setup/installation.html#choosing-your-server-name","setup/installation.html#installing-synapse","setup/installation.html#prebuilt-packages","setup/installation.html#installing-as-a-python-module-from-pypi","setup/installation.html#setting-up-synapse","setup/installation.html#using-postgresql","setup/installation.html#tls-certificates","setup/installation.html#client-well-known-uri","setup/installation.html#email","setup/installation.html#registering-a-user","setup/installation.html#setting-up-a-turn-server","setup/installation.html#url-previews","setup/installation.html#troubleshooting-installation","postgres.html#using-postgres","postgres.html#install-postgres-client-libraries","postgres.html#set-up-database","postgres.html#synapse-config","postgres.html#tuning-postgres","postgres.html#porting-from-sqlite","postgres.html#overview","postgres.html#using-the-port-script","postgres.html#troubleshooting","postgres.html#alternative-auth-methods","postgres.html#fixing-incorrect-collate-or-ctype","postgres.html#fixing-inconsistent-sequences-error","reverse_proxy.html#using-a-reverse-proxy-with-synapse","reverse_proxy.html#homeserver-configuration","reverse_proxy.html#reverse-proxy-configuration-examples","reverse_proxy.html#nginx","reverse_proxy.html#caddy-v2","reverse_proxy.html#apache","reverse_proxy.html#haproxy","reverse_proxy.html#relayd","reverse_proxy.html#health-check-endpoint","reverse_proxy.html#synapse-administration-endpoints","setup/forward_proxy.html#using-a-forward-proxy-with-synapse","setup/forward_proxy.html#configure","setup/forward_proxy.html#connection-types","setup/forward_proxy.html#troubleshooting","turn-howto.html#overview","turn-howto.html#requirements","turn-howto.html#synapse-setup","turn-howto.html#troubleshooting","setup/turn/coturn.html#coturn-turn-server","setup/turn/coturn.html#coturn-setup","setup/turn/coturn.html#initial-installation","setup/turn/coturn.html#configuration","setup/turn/eturnal.html#eturnal-turn-server","setup/turn/eturnal.html#eturnal-setup","setup/turn/eturnal.html#initial-installation","setup/turn/eturnal.html#configuration","setup/turn/eturnal.html#eturnalctl-opterations-script","delegate.html#delegation-of-incoming-federation-traffic","delegate.html#well-known-delegation","delegate.html#external-server","delegate.html#serving-a-well-knownmatrixserver-file-with-synapse","delegate.html#srv-dns-record-delegation","delegate.html#delegation-faq","delegate.html#when-do-i-need-delegation","delegate.html#should-i-use-a-reverse-proxy-for-federation-traffic","upgrade.html#upgrading-synapse","upgrade.html#rolling-back-to-older-versions","upgrade.html#upgrading-from-a-very-old-version","upgrade.html#upgrading-to-v11000","upgrade.html#minimum-supported-rust-version","upgrade.html#upgrading-to-v1930","upgrade.html#minimum-supported-rust-version-1","upgrade.html#upgrading-to-v1900","upgrade.html#app-service-query-parameter-authorization-is-now-a-configuration-option","upgrade.html#upgrading-to-v1890","upgrade.html#removal-of-unspecced-user-property-for-register","upgrade.html#upgrading-to-v1880","upgrade.html#minimum-supported-python-version","upgrade.html#removal-of-worker_replication_-settings","upgrade.html#upgrading-to-v1860","upgrade.html#minimum-supported-rust-version-2","upgrade.html#upgrading-to-v1850","upgrade.html#application-service-registration-with-user-property-deprecation","upgrade.html#upgrading-to-v1840","upgrade.html#deprecation-of-worker_replication_-configuration-settings","upgrade.html#example-change","upgrade.html#upgrading-to-v1810","upgrade.html#application-service-path--authentication-deprecations","upgrade.html#upgrading-to-v1800","upgrade.html#reporting-events-error-code-change","upgrade.html#upgrading-to-v1790","upgrade.html#the-on_threepid_bind-module-callback-method-has-been-deprecated","upgrade.html#upgrading-to-v1780","upgrade.html#deprecate-the-_synapseadminv1mediadelete-admin-api","upgrade.html#upgrading-to-v1760","upgrade.html#faster-joins-are-enabled-by-default","upgrade.html#changes-to-the-account-data-replication-streams","upgrade.html#minimum-version-of-poetry-is-now-132","upgrade.html#upgrading-to-v1740","upgrade.html#unicode-support-in-user-search","upgrade.html#user-directory-rebuild","upgrade.html#upgrading-to-v1730","upgrade.html#legacy-prometheus-metric-names-have-now-been-removed","upgrade.html#upgrading-to-v1720","upgrade.html#dropping-support-for-postgresql-10","upgrade.html#upgrading-to-v1710","upgrade.html#removal-of-the-generate_short_term_login_token-module-api-method","upgrade.html#changes-to-the-events-received-by-application-services-interest","upgrade.html#legacy-prometheus-metric-names-are-now-disabled-by-default","upgrade.html#upgrading-to-v1690"Line truncated

develop/upgrade.html

@@ -268,6 +268,22 @@ v1.61.0.</p>
 <tr><td>v1.92.0 – v1.97.0</td><td>v1.90.0</td></tr>
 <tr><td>v1.98.0 – v1.101.0</td><td>v1.96.0</td></tr>
 </tbody></table>
+<h2 id="upgrading-from-a-very-old-version"><a class="header" href="#upgrading-from-a-very-old-version">Upgrading from a very old version</a></h2>
+<p>You need to read all of the upgrade notes for each version between your current
+version and the latest so that you can update your dependencies, environment,
+config files, etc. if necessary. But you do not need to perform an
+upgrade to each individual version that was missed.</p>
+<p>We do not have a list of which versions must be installed. Instead, we recommend
+that you upgrade through each incompatible database schema version, which would
+give you the ability to roll back the maximum number of versions should anything
+go wrong. See <a href="#rolling-back-to-older-versions">Rolling back to older versions</a>
+above.</p>
+<p>Additionally, new versions of Synapse will occasionally run database migrations
+and background updates to update the database. Synapse will not start until
+database migrations are complete. You should wait until background updates from
+each upgrade are complete before moving on to the next upgrade, to avoid
+stacking them up. You can monitor the currently running background updates with
+<a href="usage/administration/admin_api/background_updates.html#status">the Admin API</a>.</p>
 <h1 id="upgrading-to-v11000"><a class="header" href="#upgrading-to-v11000">Upgrading to v1.100.0</a></h1>
 <h2 id="minimum-supported-rust-version"><a class="header" href="#minimum-supported-rust-version">Minimum supported Rust version</a></h2>
 <p>The minimum supported Rust version has been increased from v1.61.0 to v1.65.0.

develop/usage/administration/admin_faq.html

@@ -251,6 +251,9 @@ for file in $source_directory/*; do
     fi
 done
 </code></pre>
+<h2 id="how-do-i-upgrade-from-a-very-old-version-of-synapse-to-the-latest"><a class="header" href="#how-do-i-upgrade-from-a-very-old-version-of-synapse-to-the-latest">How do I upgrade from a very old version of Synapse to the latest?</a></h2>
+<p>See <a href="../../upgrade.html#upgrading-from-a-very-old-version">this</a> section in the
+upgrade docs.</p>
 <h2 id="manually-resetting-passwords"><a class="header" href="#manually-resetting-passwords">Manually resetting passwords</a></h2>
 <p>Users can reset their password through their client. Alternatively, a server admin
 can reset a user's password using the <a href="../../admin_api/user_admin_api.html#reset-password">admin API</a>.</p>