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| <h1 id="upgrading-synapse"><a class="header" href="#upgrading-synapse">Upgrading Synapse</a></h1>
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| <p>Before upgrading check if any special steps are required to upgrade from the
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| version you currently have installed to the current version of Synapse. The extra
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| instructions that may be required are listed later in this document.</p>
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| <ul>
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| <li>
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| <p>Check that your versions of Python and PostgreSQL are still supported.</p>
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| <p>Synapse follows upstream lifecycles for <code>Python</code>_ and <code>PostgreSQL</code>_, and
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| removes support for versions which are no longer maintained.</p>
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| <p>The website https://endoflife.date also offers convenient summaries.</p>
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| <p>.. _Python: https://devguide.python.org/devcycle/#end-of-life-branches
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| .. _PostgreSQL: https://www.postgresql.org/support/versioning/</p>
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| </li>
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| <li>
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| <p>If Synapse was installed using <code>prebuilt packages <INSTALL.md#prebuilt-packages></code>_, you will need to follow the normal process
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| for upgrading those packages.</p>
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| </li>
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| <li>
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| <p>If Synapse was installed from source, then:</p>
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| <ol>
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| <li>
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| <p>Activate the virtualenv before upgrading. For example, if Synapse is
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| installed in a virtualenv in <code>~/synapse/env</code> then run:</p>
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| <p>.. code:: bash</p>
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| <p>source ~/synapse/env/bin/activate</p>
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| </li>
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| <li>
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| <p>If Synapse was installed using pip then upgrade to the latest version by
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| running:</p>
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| <p>.. code:: bash</p>
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| <p>pip install --upgrade matrix-synapse</p>
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| <p>If Synapse was installed using git then upgrade to the latest version by
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| running:</p>
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| <p>.. code:: bash</p>
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| <p>git pull
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| pip install --upgrade .</p>
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| </li>
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| <li>
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| <p>Restart Synapse:</p>
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| <p>.. code:: bash</p>
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| <p>./synctl restart</p>
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| </li>
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| </ol>
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| </li>
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| </ul>
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| <p>To check whether your update was successful, you can check the running server
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| version with:</p>
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| <p>.. code:: bash</p>
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| <pre><code># you may need to replace 'localhost:8008' if synapse is not configured
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| # to listen on port 8008.
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| 
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| curl http://localhost:8008/_synapse/admin/v1/server_version
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| </code></pre>
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| <h2 id="rolling-back-to-older-versions"><a class="header" href="#rolling-back-to-older-versions">Rolling back to older versions</a></h2>
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| <p>Rolling back to previous releases can be difficult, due to database schema
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| changes between releases. Where we have been able to test the rollback process,
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| this will be noted below.</p>
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| <p>In general, you will need to undo any changes made during the upgrade process,
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| for example:</p>
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| <ul>
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| <li>
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| <p>pip:</p>
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| <p>.. code:: bash</p>
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| <p>source env/bin/activate</p>
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| <h1 id="replace-130-accordingly"><a class="header" href="#replace-130-accordingly">replace <code>1.3.0</code> accordingly:</a></h1>
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| <p>pip install matrix-synapse==1.3.0</p>
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| </li>
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| <li>
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| <p>Debian:</p>
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| <p>.. code:: bash</p>
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| <h1 id="replace-130-and-stretch-accordingly"><a class="header" href="#replace-130-and-stretch-accordingly">replace <code>1.3.0</code> and <code>stretch</code> accordingly:</a></h1>
 | |
| <p>wget https://packages.matrix.org/debian/pool/main/m/matrix-synapse-py3/matrix-synapse-py3_1.3.0+stretch1_amd64.deb
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| dpkg -i matrix-synapse-py3_1.3.0+stretch1_amd64.deb</p>
 | |
| </li>
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| </ul>
 | |
| <h1 id="upgrading-to-v1370"><a class="header" href="#upgrading-to-v1370">Upgrading to v1.37.0</a></h1>
 | |
| <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>
 | |
| <p>The current spam checker interface is deprecated in favour of a new generic modules system.
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| Authors of spam checker modules can refer to <code>this documentation <https://matrix-org.github.io/synapse/develop/modules.html#porting-an-existing-module-that-uses-the-old-interface></code>_
 | |
| to update their modules. Synapse administrators can refer to <code>this documentation <https://matrix-org.github.io/synapse/develop/modules.html#using-modules></code>_
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| to update their configuration once the modules they are using have been updated.</p>
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| <p>We plan to remove support for the current spam checker interface in August 2021.</p>
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| <p>More module interfaces will be ported over to this new generic system in future versions
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| of Synapse.</p>
 | |
| <h1 id="upgrading-to-v1340"><a class="header" href="#upgrading-to-v1340">Upgrading to v1.34.0</a></h1>
 | |
| <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>
 | |
| <p>The <code>room_invite_state_types</code> configuration setting has been deprecated and
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| replaced with <code>room_prejoin_state</code>. See the <code>sample configuration file <https://github.com/matrix-org/synapse/blob/v1.34.0/docs/sample_config.yaml#L1515></code>_.</p>
 | |
| <p>If you have set <code>room_invite_state_types</code> to the default value you should simply
 | |
| remove it from your configuration file. The default value used to be:</p>
 | |
| <p>.. code:: yaml</p>
 | |
| <p>room_invite_state_types:
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| - "m.room.join_rules"
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| - "m.room.canonical_alias"
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| - "m.room.avatar"
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| - "m.room.encryption"
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| - "m.room.name"</p>
 | |
| <p>If you have customised this value, you should remove <code>room_invite_state_types</code> and
 | |
| configure <code>room_prejoin_state</code> instead.</p>
 | |
| <h1 id="upgrading-to-v1330"><a class="header" href="#upgrading-to-v1330">Upgrading to v1.33.0</a></h1>
 | |
| <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>
 | |
| <p>This may affect you if you have enabled the account validity feature, and have made use of a
 | |
| custom HTML template specified by the <code>account_validity.template_dir</code> or <code>account_validity.account_renewed_html_path</code>
 | |
| Synapse config options.</p>
 | |
| <p>The template can now accept an <code>expiration_ts</code> variable, which represents the unix timestamp in milliseconds for the
 | |
| future date of which their account has been renewed until. See the
 | |
| <code>default template <https://github.com/matrix-org/synapse/blob/release-v1.33.0/synapse/res/templates/account_renewed.html></code>_
 | |
| for an example of usage.</p>
 | |
| <p>ALso note that a new HTML template, <code>account_previously_renewed.html</code>, has been added. This is is shown to users
 | |
| when they attempt to renew their account with a valid renewal token that has already been used before. The default
 | |
| template contents can been found
 | |
| <code>here <https://github.com/matrix-org/synapse/blob/release-v1.33.0/synapse/res/templates/account_previously_renewed.html></code>_,
 | |
| and can also accept an <code>expiration_ts</code> variable. This template replaces the error message users would previously see
 | |
| upon attempting to use a valid renewal token more than once.</p>
 | |
| <h1 id="upgrading-to-v1320"><a class="header" href="#upgrading-to-v1320">Upgrading to v1.32.0</a></h1>
 | |
| <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>
 | |
| <p>This release introduces <code>a regression <https://github.com/matrix-org/synapse/issues/9853></code>_
 | |
| that can overwhelm connected Prometheus instances. This issue is not present in
 | |
| Synapse v1.32.0rc1.</p>
 | |
| <p>If you have been affected, please downgrade to 1.31.0. You then may need to
 | |
| remove excess writeahead logs in order for Prometheus to recover. Instructions
 | |
| for doing so are provided
 | |
| <code>here <https://github.com/matrix-org/synapse/pull/9854#issuecomment-823472183></code>_.</p>
 | |
| <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>
 | |
| <p>In line with our <code>deprecation policy <https://github.com/matrix-org/synapse/blob/release-v1.32.0/docs/deprecation_policy.md></code>_,
 | |
| we've dropped support for Python 3.5 and PostgreSQL 9.5, as they are no longer supported upstream.</p>
 | |
| <p>This release of Synapse requires Python 3.6+ and PostgresSQL 9.6+ or SQLite 3.22+.</p>
 | |
| <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>
 | |
| <p>The deprecated v1 "list accounts" admin API (<code>GET /_synapse/admin/v1/users/<user_id></code>) has been removed in this version.</p>
 | |
| <p>The <code>v2 list accounts API <https://github.com/matrix-org/synapse/blob/master/docs/admin_api/user_admin_api.rst#list-accounts></code>_
 | |
| has been available since Synapse 1.7.0 (2019-12-13), and is accessible under <code>GET /_synapse/admin/v2/users</code>.</p>
 | |
| <p>The deprecation of the old endpoint was announced with Synapse 1.28.0 (released on 2021-02-25).</p>
 | |
| <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>
 | |
| <p>In compliance with the
 | |
| <code>Application Service spec <https://matrix.org/docs/spec/application_service/r0.1.2#server-admin-style-permissions></code>_,
 | |
| Application Services are now required to use the <code>m.login.application_service</code> type when registering users via the
 | |
| <code>/_matrix/client/r0/register</code> endpoint. This behaviour was deprecated in Synapse v1.30.0.</p>
 | |
| <p>Please ensure your Application Services are up to date.</p>
 | |
| <h1 id="upgrading-to-v1290"><a class="header" href="#upgrading-to-v1290">Upgrading to v1.29.0</a></h1>
 | |
| <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>
 | |
| <p>When using Synapse with a reverse proxy (in particular, when using the
 | |
| <code>x_forwarded</code> option on an HTTP listener), Synapse now expects to receive an
 | |
| <code>X-Forwarded-Proto</code> header on incoming HTTP requests. If it is not set, Synapse
 | |
| will log a warning on each received request.</p>
 | |
| <p>To avoid the warning, administrators using a reverse proxy should ensure that
 | |
| the reverse proxy sets <code>X-Forwarded-Proto</code> header to <code>https</code> or <code>http</code> to
 | |
| indicate the protocol used by the client.</p>
 | |
| <p>Synapse also requires the <code>Host</code> header to be preserved.</p>
 | |
| <p>See the <code>reverse proxy documentation <docs/reverse_proxy.md></code>_, where the
 | |
| example configurations have been updated to show how to set these headers.</p>
 | |
| <p>(Users of <code>Caddy <https://caddyserver.com/></code>_ are unaffected, since we believe it
 | |
| sets <code>X-Forwarded-Proto</code> by default.)</p>
 | |
| <h1 id="upgrading-to-v1270"><a class="header" href="#upgrading-to-v1270">Upgrading to v1.27.0</a></h1>
 | |
| <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>
 | |
| <p>This version changes the URI used for callbacks from OAuth2 and SAML2 identity providers:</p>
 | |
| <ul>
 | |
| <li>
 | |
| <p>If your server is configured for single sign-on via an OpenID Connect or OAuth2 identity
 | |
| provider, you will need to add <code>[synapse public baseurl]/_synapse/client/oidc/callback</code>
 | |
| to the list of permitted "redirect URIs" at the identity provider.</p>
 | |
| <p>See <code>docs/openid.md <docs/openid.md></code>_ for more information on setting up OpenID
 | |
| Connect.</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>If your server is configured for single sign-on via a SAML2 identity provider, you will
 | |
| need to add <code>[synapse public baseurl]/_synapse/client/saml2/authn_response</code> as a permitted
 | |
| "ACS location" (also known as "allowed callback URLs") at the identity provider.</p>
 | |
| <p>The "Issuer" in the "AuthnRequest" to the SAML2 identity provider is also updated to
 | |
| <code>[synapse public baseurl]/_synapse/client/saml2/metadata.xml</code>. If your SAML2 identity
 | |
| provider uses this property to validate or otherwise identify Synapse, its configuration
 | |
| will need to be updated to use the new URL. Alternatively you could create a new, separate
 | |
| "EntityDescriptor" in your SAML2 identity provider with the new URLs and leave the URLs in
 | |
| the existing "EntityDescriptor" as they were.</p>
 | |
| </li>
 | |
| </ul>
 | |
| <h2 id="changes-to-html-templates"><a class="header" href="#changes-to-html-templates">Changes to HTML templates</a></h2>
 | |
| <p>The HTML templates for SSO and email notifications now have <code>Jinja2's autoescape <https://jinja.palletsprojects.com/en/2.11.x/api/#autoescaping></code>_
 | |
| enabled for files ending in <code>.html</code>, <code>.htm</code>, and <code>.xml</code>. If you have customised
 | |
| these templates and see issues when viewing them you might need to update them.
 | |
| It is expected that most configurations will need no changes.</p>
 | |
| <p>If you have customised the templates <em>names</em> for these templates, it is recommended
 | |
| to verify they end in <code>.html</code> to ensure autoescape is enabled.</p>
 | |
| <p>The above applies to the following templates:</p>
 | |
| <ul>
 | |
| <li><code>add_threepid.html</code></li>
 | |
| <li><code>add_threepid_failure.html</code></li>
 | |
| <li><code>add_threepid_success.html</code></li>
 | |
| <li><code>notice_expiry.html</code></li>
 | |
| <li><code>notice_expiry.html</code></li>
 | |
| <li><code>notif_mail.html</code> (which, by default, includes <code>room.html</code> and <code>notif.html</code>)</li>
 | |
| <li><code>password_reset.html</code></li>
 | |
| <li><code>password_reset_confirmation.html</code></li>
 | |
| <li><code>password_reset_failure.html</code></li>
 | |
| <li><code>password_reset_success.html</code></li>
 | |
| <li><code>registration.html</code></li>
 | |
| <li><code>registration_failure.html</code></li>
 | |
| <li><code>registration_success.html</code></li>
 | |
| <li><code>sso_account_deactivated.html</code></li>
 | |
| <li><code>sso_auth_bad_user.html</code></li>
 | |
| <li><code>sso_auth_confirm.html</code></li>
 | |
| <li><code>sso_auth_success.html</code></li>
 | |
| <li><code>sso_error.html</code></li>
 | |
| <li><code>sso_login_idp_picker.html</code></li>
 | |
| <li><code>sso_redirect_confirm.html</code></li>
 | |
| </ul>
 | |
| <h1 id="upgrading-to-v1260"><a class="header" href="#upgrading-to-v1260">Upgrading to v1.26.0</a></h1>
 | |
| <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>
 | |
| <p>v1.26.0 includes a lot of large changes. If something problematic occurs, you
 | |
| may want to roll-back to a previous version of Synapse. Because v1.26.0 also
 | |
| includes a new database schema version, reverting that version is also required
 | |
| alongside the generic rollback instructions mentioned above. In short, to roll
 | |
| back to v1.25.0 you need to:</p>
 | |
| <ol>
 | |
| <li>
 | |
| <p>Stop the server</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>Decrease the schema version in the database:</p>
 | |
| <p>.. code:: sql</p>
 | |
| <p>UPDATE schema_version SET version = 58;</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>Delete the ignored users & chain cover data:</p>
 | |
| <p>.. code:: sql</p>
 | |
| <p>DROP TABLE IF EXISTS ignored_users;
 | |
| UPDATE rooms SET has_auth_chain_index = false;</p>
 | |
| <p>For PostgreSQL run:</p>
 | |
| <p>.. code:: sql</p>
 | |
| <p>TRUNCATE event_auth_chain_links;
 | |
| TRUNCATE event_auth_chains;</p>
 | |
| <p>For SQLite run:</p>
 | |
| <p>.. code:: sql</p>
 | |
| <p>DELETE FROM event_auth_chain_links;
 | |
| DELETE FROM event_auth_chains;</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>Mark the deltas as not run (so they will re-run on upgrade).</p>
 | |
| <p>.. code:: sql</p>
 | |
| <p>DELETE FROM applied_schema_deltas WHERE version = 59 AND file = "59/01ignored_user.py";
 | |
| DELETE FROM applied_schema_deltas WHERE version = 59 AND file = "59/06chain_cover_index.sql";</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>Downgrade Synapse by following the instructions for your installation method
 | |
| in the "Rolling back to older versions" section above.</p>
 | |
| </li>
 | |
| </ol>
 | |
| <h1 id="upgrading-to-v1250"><a class="header" href="#upgrading-to-v1250">Upgrading to v1.25.0</a></h1>
 | |
| <h2 id="last-release-supporting-python-35"><a class="header" href="#last-release-supporting-python-35">Last release supporting Python 3.5</a></h2>
 | |
| <p>This is the last release of Synapse which guarantees support with Python 3.5,
 | |
| which passed its upstream End of Life date several months ago.</p>
 | |
| <p>We will attempt to maintain support through March 2021, but without guarantees.</p>
 | |
| <p>In the future, Synapse will follow upstream schedules for ending support of
 | |
| older versions of Python and PostgreSQL. Please upgrade to at least Python 3.6
 | |
| and PostgreSQL 9.6 as soon as possible.</p>
 | |
| <h2 id="blacklisting-ip-ranges"><a class="header" href="#blacklisting-ip-ranges">Blacklisting IP ranges</a></h2>
 | |
| <p>Synapse v1.25.0 includes new settings, <code>ip_range_blacklist</code> and
 | |
| <code>ip_range_whitelist</code>, for controlling outgoing requests from Synapse for federation,
 | |
| identity servers, push, and for checking key validity for third-party invite events.
 | |
| The previous setting, <code>federation_ip_range_blacklist</code>, is deprecated. The new
 | |
| <code>ip_range_blacklist</code> defaults to private IP ranges if it is not defined.</p>
 | |
| <p>If you have never customised <code>federation_ip_range_blacklist</code> it is recommended
 | |
| that you remove that setting.</p>
 | |
| <p>If you have customised <code>federation_ip_range_blacklist</code> you should update the
 | |
| setting name to <code>ip_range_blacklist</code>.</p>
 | |
| <p>If you have a custom push server that is reached via private IP space you may
 | |
| need to customise <code>ip_range_blacklist</code> or <code>ip_range_whitelist</code>.</p>
 | |
| <h1 id="upgrading-to-v1240"><a class="header" href="#upgrading-to-v1240">Upgrading to v1.24.0</a></h1>
 | |
| <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>
 | |
| <p>This release allows the OpenID Connect mapping provider to perform normalisation
 | |
| of the localpart of the Matrix ID. This allows for the mapping provider to
 | |
| specify different algorithms, instead of the <a href="https://matrix.org/docs/spec/appendices#mapping-from-other-character-sets">default way</a>.</p>
 | |
| <p>If your Synapse configuration uses a custom mapping provider
 | |
| (<code>oidc_config.user_mapping_provider.module</code> is specified and not equal to
 | |
| <code>synapse.handlers.oidc_handler.JinjaOidcMappingProvider</code>) then you <em>must</em> ensure
 | |
| that <code>map_user_attributes</code> of the mapping provider performs some normalisation
 | |
| of the <code>localpart</code> returned. To match previous behaviour you can use the
 | |
| <code>map_username_to_mxid_localpart</code> function provided by Synapse. An example is
 | |
| shown below:</p>
 | |
| <p>.. code-block:: python</p>
 | |
| <p>from synapse.types import map_username_to_mxid_localpart</p>
 | |
| <p>class MyMappingProvider:
 | |
| def map_user_attributes(self, userinfo, token):
 | |
| # ... your custom logic ...
 | |
| sso_user_id = ...
 | |
| localpart = map_username_to_mxid_localpart(sso_user_id)</p>
 | |
| <pre><code>      return {"localpart": localpart}
 | |
| </code></pre>
 | |
| <h2 id="removal-historical-synapse-admin-api"><a class="header" href="#removal-historical-synapse-admin-api">Removal historical Synapse Admin API</a></h2>
 | |
| <p>Historically, the Synapse Admin API has been accessible under:</p>
 | |
| <ul>
 | |
| <li><code>/_matrix/client/api/v1/admin</code></li>
 | |
| <li><code>/_matrix/client/unstable/admin</code></li>
 | |
| <li><code>/_matrix/client/r0/admin</code></li>
 | |
| <li><code>/_synapse/admin/v1</code></li>
 | |
| </ul>
 | |
| <p>The endpoints with <code>/_matrix/client/*</code> prefixes have been removed as of v1.24.0.
 | |
| The Admin API is now only accessible under:</p>
 | |
| <ul>
 | |
| <li><code>/_synapse/admin/v1</code></li>
 | |
| </ul>
 | |
| <p>The only exception is the <code>/admin/whois</code> endpoint, which is
 | |
| <code>also available via the client-server API <https://matrix.org/docs/spec/client_server/r0.6.1#get-matrix-client-r0-admin-whois-userid></code>_.</p>
 | |
| <p>The deprecation of the old endpoints was announced with Synapse 1.20.0 (released
 | |
| on 2020-09-22) and makes it easier for homeserver admins to lock down external
 | |
| access to the Admin API endpoints.</p>
 | |
| <h1 id="upgrading-to-v1230"><a class="header" href="#upgrading-to-v1230">Upgrading to v1.23.0</a></h1>
 | |
| <h2 id="structured-logging-configuration-breaking-changes"><a class="header" href="#structured-logging-configuration-breaking-changes">Structured logging configuration breaking changes</a></h2>
 | |
| <p>This release deprecates use of the <code>structured: true</code> logging configuration for
 | |
| structured logging. If your logging configuration contains <code>structured: true</code>
 | |
| then it should be modified based on the <code>structured logging documentation <https://github.com/matrix-org/synapse/blob/master/docs/structured_logging.md></code>_.</p>
 | |
| <p>The <code>structured</code> and <code>drains</code> logging options are now deprecated and should
 | |
| be replaced by standard logging configuration of <code>handlers</code> and <code>formatters</code>.</p>
 | |
| <p>A future will release of Synapse will make using <code>structured: true</code> an error.</p>
 | |
| <h1 id="upgrading-to-v1220"><a class="header" href="#upgrading-to-v1220">Upgrading to v1.22.0</a></h1>
 | |
| <h2 id="thirdpartyeventrules-breaking-changes"><a class="header" href="#thirdpartyeventrules-breaking-changes">ThirdPartyEventRules breaking changes</a></h2>
 | |
| <p>This release introduces a backwards-incompatible change to modules making use of
 | |
| <code>ThirdPartyEventRules</code> in Synapse. If you make use of a module defined under the
 | |
| <code>third_party_event_rules</code> config option, please make sure it is updated to handle
 | |
| the below change:</p>
 | |
| <p>The <code>http_client</code> argument is no longer passed to modules as they are initialised. Instead,
 | |
| modules are expected to make use of the <code>http_client</code> property on the <code>ModuleApi</code> class.
 | |
| Modules are now passed a <code>module_api</code> argument during initialisation, which is an instance of
 | |
| <code>ModuleApi</code>. <code>ModuleApi</code> instances have a <code>http_client</code> property which acts the same as
 | |
| the <code>http_client</code> argument previously passed to <code>ThirdPartyEventRules</code> modules.</p>
 | |
| <h1 id="upgrading-to-v1210"><a class="header" href="#upgrading-to-v1210">Upgrading to v1.21.0</a></h1>
 | |
| <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>
 | |
| <p>The <code>reverse proxy documentation <https://github.com/matrix-org/synapse/blob/develop/docs/reverse_proxy.md></code>_ has been updated
 | |
| to include reverse proxy directives for <code>/_synapse/client/*</code> endpoints. As the user password
 | |
| reset flow now uses endpoints under this prefix, <strong>you must update your reverse proxy
 | |
| configurations for user password reset to work</strong>.</p>
 | |
| <p>Additionally, note that the <code>Synapse worker documentation <https://github.com/matrix-org/synapse/blob/develop/docs/workers.md></code>_ has been updated to
 | |
| state that the <code>/_synapse/client/password_reset/email/submit_token</code> endpoint can be handled
 | |
| by all workers. If you make use of Synapse's worker feature, please update your reverse proxy
 | |
| configuration to reflect this change.</p>
 | |
| <h2 id="new-html-templates"><a class="header" href="#new-html-templates">New HTML templates</a></h2>
 | |
| <p>A new HTML template,
 | |
| <code>password_reset_confirmation.html <https://github.com/matrix-org/synapse/blob/develop/synapse/res/templates/password_reset_confirmation.html></code>_,
 | |
| has been added to the <code>synapse/res/templates</code> directory. If you are using a
 | |
| custom template directory, you may want to copy the template over and modify it.</p>
 | |
| <p>Note that as of v1.20.0, templates do not need to be included in custom template
 | |
| directories for Synapse to start. The default templates will be used if a custom
 | |
| template cannot be found.</p>
 | |
| <p>This page will appear to the user after clicking a password reset link that has
 | |
| been emailed to them.</p>
 | |
| <p>To complete password reset, the page must include a way to make a <code>POST</code>
 | |
| request to
 | |
| <code>/_synapse/client/password_reset/{medium}/submit_token</code>
 | |
| with the query parameters from the original link, presented as a URL-encoded form. See the file
 | |
| itself for more details.</p>
 | |
| <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>
 | |
| <p>The <code>saml_error.html</code> template was removed from Synapse and replaced with the
 | |
| <code>sso_error.html</code> template. If your Synapse is configured to use SAML and a
 | |
| custom <code>sso_redirect_confirm_template_dir</code> configuration then any customisations
 | |
| of the <code>saml_error.html</code> template will need to be merged into the <code>sso_error.html</code>
 | |
| template. These templates are similar, but the parameters are slightly different:</p>
 | |
| <ul>
 | |
| <li>The <code>msg</code> parameter should be renamed to <code>error_description</code>.</li>
 | |
| <li>There is no longer a <code>code</code> parameter for the response code.</li>
 | |
| <li>A string <code>error</code> parameter is available that includes a short hint of why a
 | |
| user is seeing the error page.</li>
 | |
| </ul>
 | |
| <h1 id="upgrading-to-v1180"><a class="header" href="#upgrading-to-v1180">Upgrading to v1.18.0</a></h1>
 | |
| <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>
 | |
| <p>From 10th August 2020, we will no longer publish Docker images with the <code>-py3</code> tag suffix. The images tagged with the <code>-py3</code> suffix have been identical to the non-suffixed tags since release 0.99.0, and the suffix is obsolete.</p>
 | |
| <p>On 10th August, we will remove the <code>latest-py3</code> tag. Existing per-release tags (such as <code>v1.18.0-py3</code>) will not be removed, but no new <code>-py3</code> tags will be added.</p>
 | |
| <p>Scripts relying on the <code>-py3</code> suffix will need to be updated.</p>
 | |
| <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>
 | |
| <p>When setting up worker processes, we now recommend the use of a Redis server for replication. <strong>The old direct TCP connection method is deprecated and will be removed in a future release.</strong>
 | |
| See <code>docs/workers.md <docs/workers.md></code>_ for more details.</p>
 | |
| <h1 id="upgrading-to-v1140"><a class="header" href="#upgrading-to-v1140">Upgrading to v1.14.0</a></h1>
 | |
| <p>This version includes a database update which is run as part of the upgrade,
 | |
| and which may take a couple of minutes in the case of a large server. Synapse
 | |
| will not respond to HTTP requests while this update is taking place.</p>
 | |
| <h1 id="upgrading-to-v1130"><a class="header" href="#upgrading-to-v1130">Upgrading to v1.13.0</a></h1>
 | |
| <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>
 | |
| <p>A bug was introduced in Synapse 1.4.0 which could cause the room directory to
 | |
| be incomplete or empty if Synapse was upgraded directly from v1.2.1 or
 | |
| earlier, to versions between v1.4.0 and v1.12.x.</p>
 | |
| <p>This will <em>not</em> be a problem for Synapse installations which were:</p>
 | |
| <ul>
 | |
| <li>created at v1.4.0 or later,</li>
 | |
| <li>upgraded via v1.3.x, or</li>
 | |
| <li>upgraded straight from v1.2.1 or earlier to v1.13.0 or later.</li>
 | |
| </ul>
 | |
| <p>If completeness of the room directory is a concern, installations which are
 | |
| affected can be repaired as follows:</p>
 | |
| <ol>
 | |
| <li>
 | |
| <p>Run the following sql from a <code>psql</code> or <code>sqlite3</code> console:</p>
 | |
| <p>.. code:: sql</p>
 | |
| <p>INSERT INTO background_updates (update_name, progress_json, depends_on) VALUES
 | |
| ('populate_stats_process_rooms', '{}', 'current_state_events_membership');</p>
 | |
| <p>INSERT INTO background_updates (update_name, progress_json, depends_on) VALUES
 | |
| ('populate_stats_process_users', '{}', 'populate_stats_process_rooms');</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>Restart synapse.</p>
 | |
| </li>
 | |
| </ol>
 | |
| <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>
 | |
| <p>New templates (<code>sso_auth_confirm.html</code>, <code>sso_auth_success.html</code>, and
 | |
| <code>sso_account_deactivated.html</code>) were added to Synapse. If your Synapse is
 | |
| configured to use SSO and a custom  <code>sso_redirect_confirm_template_dir</code>
 | |
| configuration then these templates will need to be copied from
 | |
| <code>synapse/res/templates <synapse/res/templates></code>_ into that directory.</p>
 | |
| <h2 id="synapse-sso-plugins-method-deprecation"><a class="header" href="#synapse-sso-plugins-method-deprecation">Synapse SSO Plugins Method Deprecation</a></h2>
 | |
| <p>Plugins using the <code>complete_sso_login</code> method of
 | |
| <code>synapse.module_api.ModuleApi</code> should update to using the async/await
 | |
| version <code>complete_sso_login_async</code> which includes additional checks. The
 | |
| non-async version is considered deprecated.</p>
 | |
| <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>
 | |
| <p>v1.13.0 includes a lot of large changes. If something problematic occurs, you
 | |
| may want to roll-back to a previous version of Synapse. Because v1.13.0 also
 | |
| includes a new database schema version, reverting that version is also required
 | |
| alongside the generic rollback instructions mentioned above. In short, to roll
 | |
| back to v1.12.4 you need to:</p>
 | |
| <ol>
 | |
| <li>
 | |
| <p>Stop the server</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>Decrease the schema version in the database:</p>
 | |
| <p>.. code:: sql</p>
 | |
| <p>UPDATE schema_version SET version = 57;</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>Downgrade Synapse by following the instructions for your installation method
 | |
| in the "Rolling back to older versions" section above.</p>
 | |
| </li>
 | |
| </ol>
 | |
| <h1 id="upgrading-to-v1120"><a class="header" href="#upgrading-to-v1120">Upgrading to v1.12.0</a></h1>
 | |
| <p>This version includes a database update which is run as part of the upgrade,
 | |
| and which may take some time (several hours in the case of a large
 | |
| server). Synapse will not respond to HTTP requests while this update is taking
 | |
| place.</p>
 | |
| <p>This is only likely to be a problem in the case of a server which is
 | |
| participating in many rooms.</p>
 | |
| <ol start="0">
 | |
| <li>
 | |
| <p>As with all upgrades, it is recommended that you have a recent backup of
 | |
| your database which can be used for recovery in the event of any problems.</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>As an initial check to see if you will be affected, you can try running the
 | |
| following query from the <code>psql</code> or <code>sqlite3</code> console. It is safe to run it
 | |
| while Synapse is still running.</p>
 | |
| <p>.. code:: sql</p>
 | |
| <p>SELECT MAX(q.v) FROM (
 | |
| SELECT (
 | |
| SELECT ej.json AS v
 | |
| FROM state_events se INNER JOIN event_json ej USING (event_id)
 | |
| WHERE se.room_id=rooms.room_id AND se.type='m.room.create' AND se.state_key=''
 | |
| LIMIT 1
 | |
| ) FROM rooms WHERE rooms.room_version IS NULL
 | |
| ) q;</p>
 | |
| <p>This query will take about the same amount of time as the upgrade process: ie,
 | |
| if it takes 5 minutes, then it is likely that Synapse will be unresponsive for
 | |
| 5 minutes during the upgrade.</p>
 | |
| <p>If you consider an outage of this duration to be acceptable, no further
 | |
| action is necessary and you can simply start Synapse 1.12.0.</p>
 | |
| <p>If you would prefer to reduce the downtime, continue with the steps below.</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>The easiest workaround for this issue is to manually
 | |
| create a new index before upgrading. On PostgreSQL, his can be done as follows:</p>
 | |
| <p>.. code:: sql</p>
 | |
| <p>CREATE INDEX CONCURRENTLY tmp_upgrade_1_12_0_index
 | |
| ON state_events(room_id) WHERE type = 'm.room.create';</p>
 | |
| <p>The above query may take some time, but is also safe to run while Synapse is
 | |
| running.</p>
 | |
| <p>We assume that no SQLite users have databases large enough to be
 | |
| affected. If you <em>are</em> affected, you can run a similar query, omitting the
 | |
| <code>CONCURRENTLY</code> keyword. Note however that this operation may in itself cause
 | |
| Synapse to stop running for some time. Synapse admins are reminded that
 | |
| <code>SQLite is not recommended for use outside a test environment <https://github.com/matrix-org/synapse/blob/master/README.rst#using-postgresql></code>_.</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>Once the index has been created, the <code>SELECT</code> query in step 1 above should
 | |
| complete quickly. It is therefore safe to upgrade to Synapse 1.12.0.</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>Once Synapse 1.12.0 has successfully started and is responding to HTTP
 | |
| requests, the temporary index can be removed:</p>
 | |
| <p>.. code:: sql</p>
 | |
| <p>DROP INDEX tmp_upgrade_1_12_0_index;</p>
 | |
| </li>
 | |
| </ol>
 | |
| <h1 id="upgrading-to-v1100"><a class="header" href="#upgrading-to-v1100">Upgrading to v1.10.0</a></h1>
 | |
| <p>Synapse will now log a warning on start up if used with a PostgreSQL database
 | |
| that has a non-recommended locale set.</p>
 | |
| <p>See <code>docs/postgres.md <docs/postgres.md></code>_ for details.</p>
 | |
| <h1 id="upgrading-to-v180"><a class="header" href="#upgrading-to-v180">Upgrading to v1.8.0</a></h1>
 | |
| <p>Specifying a <code>log_file</code> config option will now cause Synapse to refuse to
 | |
| start, and should be replaced by with the <code>log_config</code> option. Support for
 | |
| the <code>log_file</code> option was removed in v1.3.0 and has since had no effect.</p>
 | |
| <h1 id="upgrading-to-v170"><a class="header" href="#upgrading-to-v170">Upgrading to v1.7.0</a></h1>
 | |
| <p>In an attempt to configure Synapse in a privacy preserving way, the default
 | |
| behaviours of <code>allow_public_rooms_without_auth</code> and
 | |
| <code>allow_public_rooms_over_federation</code> have been inverted. This means that by
 | |
| default, only authenticated users querying the Client/Server API will be able
 | |
| to query the room directory, and relatedly that the server will not share
 | |
| room directory information with other servers over federation.</p>
 | |
| <p>If your installation does not explicitly set these settings one way or the other
 | |
| and you want either setting to be <code>true</code> then it will necessary to update
 | |
| your homeserver configuration file accordingly.</p>
 | |
| <p>For more details on the surrounding context see our <code>explainer <https://matrix.org/blog/2019/11/09/avoiding-unwelcome-visitors-on-private-matrix-servers></code>_.</p>
 | |
| <h1 id="upgrading-to-v150"><a class="header" href="#upgrading-to-v150">Upgrading to v1.5.0</a></h1>
 | |
| <p>This release includes a database migration which may take several minutes to
 | |
| complete if there are a large number (more than a million or so) of entries in
 | |
| the <code>devices</code> table. This is only likely to a be a problem on very large
 | |
| installations.</p>
 | |
| <h1 id="upgrading-to-v140"><a class="header" href="#upgrading-to-v140">Upgrading to v1.4.0</a></h1>
 | |
| <h2 id="new-custom-templates"><a class="header" href="#new-custom-templates">New custom templates</a></h2>
 | |
| <p>If you have configured a custom template directory with the
 | |
| <code>email.template_dir</code> option, be aware that there are new templates regarding
 | |
| registration and threepid management (see below) that must be included.</p>
 | |
| <ul>
 | |
| <li><code>registration.html</code> and <code>registration.txt</code></li>
 | |
| <li><code>registration_success.html</code> and <code>registration_failure.html</code></li>
 | |
| <li><code>add_threepid.html</code> and  <code>add_threepid.txt</code></li>
 | |
| <li><code>add_threepid_failure.html</code> and <code>add_threepid_success.html</code></li>
 | |
| </ul>
 | |
| <p>Synapse will expect these files to exist inside the configured template
 | |
| directory, and <strong>will fail to start</strong> if they are absent.
 | |
| To view the default templates, see <code>synapse/res/templates <https://github.com/matrix-org/synapse/tree/master/synapse/res/templates></code>_.</p>
 | |
| <h2 id="3pid-verification-changes"><a class="header" href="#3pid-verification-changes">3pid verification changes</a></h2>
 | |
| <p><strong>Note: As of this release, users will be unable to add phone numbers or email
 | |
| addresses to their accounts, without changes to the Synapse configuration. This
 | |
| includes adding an email address during registration.</strong></p>
 | |
| <p>It is possible for a user to associate an email address or phone number
 | |
| with their account, for a number of reasons:</p>
 | |
| <ul>
 | |
| <li>for use when logging in, as an alternative to the user id.</li>
 | |
| <li>in the case of email, as an alternative contact to help with account recovery.</li>
 | |
| <li>in the case of email, to receive notifications of missed messages.</li>
 | |
| </ul>
 | |
| <p>Before an email address or phone number can be added to a user's account,
 | |
| or before such an address is used to carry out a password-reset, Synapse must
 | |
| confirm the operation with the owner of the email address or phone number.
 | |
| It does this by sending an email or text giving the user a link or token to confirm
 | |
| receipt. This process is known as '3pid verification'. ('3pid', or 'threepid',
 | |
| stands for third-party identifier, and we use it to refer to external
 | |
| identifiers such as email addresses and phone numbers.)</p>
 | |
| <p>Previous versions of Synapse delegated the task of 3pid verification to an
 | |
| identity server by default. In most cases this server is <code>vector.im</code> or
 | |
| <code>matrix.org</code>.</p>
 | |
| <p>In Synapse 1.4.0, for security and privacy reasons, the homeserver will no
 | |
| longer delegate this task to an identity server by default. Instead,
 | |
| the server administrator will need to explicitly decide how they would like the
 | |
| verification messages to be sent.</p>
 | |
| <p>In the medium term, the <code>vector.im</code> and <code>matrix.org</code> identity servers will
 | |
| disable support for delegated 3pid verification entirely. However, in order to
 | |
| ease the transition, they will retain the capability for a limited
 | |
| period. Delegated email verification will be disabled on Monday 2nd December
 | |
| 2019 (giving roughly 2 months notice). Disabling delegated SMS verification
 | |
| will follow some time after that once SMS verification support lands in
 | |
| Synapse.</p>
 | |
| <p>Once delegated 3pid verification support has been disabled in the <code>vector.im</code> and
 | |
| <code>matrix.org</code> identity servers, all Synapse versions that depend on those
 | |
| instances will be unable to verify email and phone numbers through them. There
 | |
| are no imminent plans to remove delegated 3pid verification from Sydent
 | |
| generally. (Sydent is the identity server project that backs the <code>vector.im</code> and
 | |
| <code>matrix.org</code> instances).</p>
 | |
| <p>Email</p>
 | |
| <pre><code>Following upgrade, to continue verifying email (e.g. as part of the
 | |
| registration process), admins can either:-
 | |
| 
 | |
| * Configure Synapse to use an email server.
 | |
| * Run or choose an identity server which allows delegated email verification
 | |
|   and delegate to it.
 | |
| 
 | |
| Configure SMTP in Synapse
 | |
| +++++++++++++++++++++++++
 | |
| 
 | |
| To configure an SMTP server for Synapse, modify the configuration section
 | |
| headed ``email``, and be sure to have at least the ``smtp_host, smtp_port``
 | |
| and ``notif_from`` fields filled out.
 | |
| 
 | |
| You may also need to set ``smtp_user``, ``smtp_pass``, and
 | |
| ``require_transport_security``.
 | |
| 
 | |
| See the `sample configuration file <docs/sample_config.yaml>`_ for more details
 | |
| on these settings.
 | |
| 
 | |
| Delegate email to an identity server
 | |
| ++++++++++++++++++++++++++++++++++++
 | |
| 
 | |
| Some admins will wish to continue using email verification as part of the
 | |
| registration process, but will not immediately have an appropriate SMTP server
 | |
| at hand.
 | |
| 
 | |
| To this end, we will continue to support email verification delegation via the
 | |
| ``vector.im`` and ``matrix.org`` identity servers for two months. Support for
 | |
| delegated email verification will be disabled on Monday 2nd December.
 | |
| 
 | |
| The ``account_threepid_delegates`` dictionary defines whether the homeserver
 | |
| should delegate an external server (typically an `identity server
 | |
| <https://matrix.org/docs/spec/identity_service/r0.2.1>`_) to handle sending
 | |
| confirmation messages via email and SMS.
 | |
| 
 | |
| So to delegate email verification, in ``homeserver.yaml``, set
 | |
| ``account_threepid_delegates.email`` to the base URL of an identity server. For
 | |
| example:
 | |
| 
 | |
| .. code:: yaml
 | |
| 
 | |
|    account_threepid_delegates:
 | |
|        email: https://example.com     # Delegate email sending to example.com
 | |
| 
 | |
| Note that ``account_threepid_delegates.email`` replaces the deprecated
 | |
| ``email.trust_identity_server_for_password_resets``: if
 | |
| ``email.trust_identity_server_for_password_resets`` is set to ``true``, and
 | |
| ``account_threepid_delegates.email`` is not set, then the first entry in
 | |
| ``trusted_third_party_id_servers`` will be used as the
 | |
| ``account_threepid_delegate`` for email. This is to ensure compatibility with
 | |
| existing Synapse installs that set up external server handling for these tasks
 | |
| before v1.4.0. If ``email.trust_identity_server_for_password_resets`` is
 | |
| ``true`` and no trusted identity server domains are configured, Synapse will
 | |
| report an error and refuse to start.
 | |
| 
 | |
| If ``email.trust_identity_server_for_password_resets`` is ``false`` or absent
 | |
| and no ``email`` delegate is configured in ``account_threepid_delegates``,
 | |
| then Synapse will send email verification messages itself, using the configured
 | |
| SMTP server (see above).
 | |
| that type.
 | |
| 
 | |
| Phone numbers
 | |
| </code></pre>
 | |
| <p>Synapse does not support phone-number verification itself, so the only way to
 | |
| maintain the ability for users to add phone numbers to their accounts will be
 | |
| by continuing to delegate phone number verification to the <code>matrix.org</code> and
 | |
| <code>vector.im</code> identity servers (or another identity server that supports SMS
 | |
| sending).</p>
 | |
| <p>The <code>account_threepid_delegates</code> dictionary defines whether the homeserver
 | |
| should delegate an external server (typically an <code>identity server <https://matrix.org/docs/spec/identity_service/r0.2.1></code>_) to handle sending
 | |
| confirmation messages via email and SMS.</p>
 | |
| <p>So to delegate phone number verification, in <code>homeserver.yaml</code>, set
 | |
| <code>account_threepid_delegates.msisdn</code> to the base URL of an identity
 | |
| server. For example:</p>
 | |
| <p>.. code:: yaml</p>
 | |
| <p>account_threepid_delegates:
 | |
| msisdn: https://example.com     # Delegate sms sending to example.com</p>
 | |
| <p>The <code>matrix.org</code> and <code>vector.im</code> identity servers will continue to support
 | |
| delegated phone number verification via SMS until such time as it is possible
 | |
| for admins to configure their servers to perform phone number verification
 | |
| directly. More details will follow in a future release.</p>
 | |
| <h2 id="rolling-back-to-v131"><a class="header" href="#rolling-back-to-v131">Rolling back to v1.3.1</a></h2>
 | |
| <p>If you encounter problems with v1.4.0, it should be possible to roll back to
 | |
| v1.3.1, subject to the following:</p>
 | |
| <ul>
 | |
| <li>
 | |
| <p>The 'room statistics' engine was heavily reworked in this release (see
 | |
| <code>#5971 <https://github.com/matrix-org/synapse/pull/5971></code>_), including
 | |
| significant changes to the database schema, which are not easily
 | |
| reverted. This will cause the room statistics engine to stop updating when
 | |
| you downgrade.</p>
 | |
| <p>The room statistics are essentially unused in v1.3.1 (in future versions of
 | |
| Synapse, they will be used to populate the room directory), so there should
 | |
| be no loss of functionality. However, the statistics engine will write errors
 | |
| to the logs, which can be avoided by setting the following in
 | |
| <code>homeserver.yaml</code>:</p>
 | |
| <p>.. code:: yaml</p>
 | |
| <p>stats:
 | |
| enabled: false</p>
 | |
| <p>Don't forget to re-enable it when you upgrade again, in preparation for its
 | |
| use in the room directory!</p>
 | |
| </li>
 | |
| </ul>
 | |
| <h1 id="upgrading-to-v120"><a class="header" href="#upgrading-to-v120">Upgrading to v1.2.0</a></h1>
 | |
| <p>Some counter metrics have been renamed, with the old names deprecated. See
 | |
| <code>the metrics documentation <docs/metrics-howto.md#renaming-of-metrics--deprecation-of-old-names-in-12></code>_
 | |
| for details.</p>
 | |
| <h1 id="upgrading-to-v110"><a class="header" href="#upgrading-to-v110">Upgrading to v1.1.0</a></h1>
 | |
| <p>Synapse v1.1.0 removes support for older Python and PostgreSQL versions, as
 | |
| outlined in <code>our deprecation notice <https://matrix.org/blog/2019/04/08/synapse-deprecating-postgres-9-4-and-python-2-x></code>_.</p>
 | |
| <h2 id="minimum-python-version"><a class="header" href="#minimum-python-version">Minimum Python Version</a></h2>
 | |
| <p>Synapse v1.1.0 has a minimum Python requirement of Python 3.5. Python 3.6 or
 | |
| Python 3.7 are recommended as they have improved internal string handling,
 | |
| significantly reducing memory usage.</p>
 | |
| <p>If you use current versions of the Matrix.org-distributed Debian packages or
 | |
| Docker images, action is not required.</p>
 | |
| <p>If you install Synapse in a Python virtual environment, please see "Upgrading to
 | |
| v0.34.0" for notes on setting up a new virtualenv under Python 3.</p>
 | |
| <h2 id="minimum-postgresql-version"><a class="header" href="#minimum-postgresql-version">Minimum PostgreSQL Version</a></h2>
 | |
| <p>If using PostgreSQL under Synapse, you will need to use PostgreSQL 9.5 or above.
 | |
| Please see the
 | |
| <code>PostgreSQL documentation <https://www.postgresql.org/docs/11/upgrading.html></code>_
 | |
| for more details on upgrading your database.</p>
 | |
| <h1 id="upgrading-to-v10"><a class="header" href="#upgrading-to-v10">Upgrading to v1.0</a></h1>
 | |
| <h2 id="validation-of-tls-certificates"><a class="header" href="#validation-of-tls-certificates">Validation of TLS certificates</a></h2>
 | |
| <p>Synapse v1.0 is the first release to enforce
 | |
| validation of TLS certificates for the federation API. It is therefore
 | |
| essential that your certificates are correctly configured. See the <code>FAQ <docs/MSC1711_certificates_FAQ.md></code>_ for more information.</p>
 | |
| <p>Note, v1.0 installations will also no longer be able to federate with servers
 | |
| that have not correctly configured their certificates.</p>
 | |
| <p>In rare cases, it may be desirable to disable certificate checking: for
 | |
| example, it might be essential to be able to federate with a given legacy
 | |
| server in a closed federation. This can be done in one of two ways:-</p>
 | |
| <ul>
 | |
| <li>Configure the global switch <code>federation_verify_certificates</code> to <code>false</code>.</li>
 | |
| <li>Configure a whitelist of server domains to trust via <code>federation_certificate_verification_whitelist</code>.</li>
 | |
| </ul>
 | |
| <p>See the <code>sample configuration file <docs/sample_config.yaml></code>_
 | |
| for more details on these settings.</p>
 | |
| <h2 id="email"><a class="header" href="#email">Email</a></h2>
 | |
| <p>When a user requests a password reset, Synapse will send an email to the
 | |
| user to confirm the request.</p>
 | |
| <p>Previous versions of Synapse delegated the job of sending this email to an
 | |
| identity server. If the identity server was somehow malicious or became
 | |
| compromised, it would be theoretically possible to hijack an account through
 | |
| this means.</p>
 | |
| <p>Therefore, by default, Synapse v1.0 will send the confirmation email itself. If
 | |
| Synapse is not configured with an SMTP server, password reset via email will be
 | |
| disabled.</p>
 | |
| <p>To configure an SMTP server for Synapse, modify the configuration section
 | |
| headed <code>email</code>, and be sure to have at least the <code>smtp_host</code>, <code>smtp_port</code>
 | |
| and <code>notif_from</code> fields filled out. You may also need to set <code>smtp_user</code>,
 | |
| <code>smtp_pass</code>, and <code>require_transport_security</code>.</p>
 | |
| <p>If you are absolutely certain that you wish to continue using an identity
 | |
| server for password resets, set <code>trust_identity_server_for_password_resets</code> to <code>true</code>.</p>
 | |
| <p>See the <code>sample configuration file <docs/sample_config.yaml></code>_
 | |
| for more details on these settings.</p>
 | |
| <h2 id="new-email-templates"><a class="header" href="#new-email-templates">New email templates</a></h2>
 | |
| <p>Some new templates have been added to the default template directory for the purpose of the
 | |
| homeserver sending its own password reset emails. If you have configured a custom
 | |
| <code>template_dir</code> in your Synapse config, these files will need to be added.</p>
 | |
| <p><code>password_reset.html</code> and <code>password_reset.txt</code> are HTML and plain text templates
 | |
| respectively that contain the contents of what will be emailed to the user upon attempting to
 | |
| reset their password via email. <code>password_reset_success.html</code> and
 | |
| <code>password_reset_failure.html</code> are HTML files that the content of which (assuming no redirect
 | |
| URL is set) will be shown to the user after they attempt to click the link in the email sent
 | |
| to them.</p>
 | |
| <h1 id="upgrading-to-v0990"><a class="header" href="#upgrading-to-v0990">Upgrading to v0.99.0</a></h1>
 | |
| <p>Please be aware that, before Synapse v1.0 is released around March 2019, you
 | |
| will need to replace any self-signed certificates with those verified by a
 | |
| root CA. Information on how to do so can be found at <code>the ACME docs <docs/ACME.md></code>_.</p>
 | |
| <p>For more information on configuring TLS certificates see the <code>FAQ <docs/MSC1711_certificates_FAQ.md></code>_.</p>
 | |
| <h1 id="upgrading-to-v0340"><a class="header" href="#upgrading-to-v0340">Upgrading to v0.34.0</a></h1>
 | |
| <ol>
 | |
| <li>
 | |
| <p>This release is the first to fully support Python 3. Synapse will now run on
 | |
| Python versions 3.5, or 3.6 (as well as 2.7). We recommend switching to
 | |
| Python 3, as it has been shown to give performance improvements.</p>
 | |
| <p>For users who have installed Synapse into a virtualenv, we recommend doing
 | |
| this by creating a new virtualenv. For example::</p>
 | |
| <pre><code>virtualenv -p python3 ~/synapse/env3
 | |
| source ~/synapse/env3/bin/activate
 | |
| pip install matrix-synapse
 | |
| </code></pre>
 | |
| <p>You can then start synapse as normal, having activated the new virtualenv::</p>
 | |
| <pre><code>cd ~/synapse
 | |
| source env3/bin/activate
 | |
| synctl start
 | |
| </code></pre>
 | |
| <p>Users who have installed from distribution packages should see the relevant
 | |
| package documentation. See below for notes on Debian packages.</p>
 | |
| <ul>
 | |
| <li>
 | |
| <p>When upgrading to Python 3, you <strong>must</strong> make sure that your log files are
 | |
| configured as UTF-8, by adding <code>encoding: utf8</code> to the
 | |
| <code>RotatingFileHandler</code> configuration (if you have one) in your
 | |
| <code><server>.log.config</code> file. For example, if your <code>log.config</code> file
 | |
| contains::</p>
 | |
| <p>handlers:
 | |
| file:
 | |
| class: logging.handlers.RotatingFileHandler
 | |
| formatter: precise
 | |
| filename: homeserver.log
 | |
| maxBytes: 104857600
 | |
| backupCount: 10
 | |
| filters: [context]
 | |
| console:
 | |
| class: logging.StreamHandler
 | |
| formatter: precise
 | |
| filters: [context]</p>
 | |
| <p>Then you should update this to be::</p>
 | |
| <p>handlers:
 | |
| file:
 | |
| class: logging.handlers.RotatingFileHandler
 | |
| formatter: precise
 | |
| filename: homeserver.log
 | |
| maxBytes: 104857600
 | |
| backupCount: 10
 | |
| filters: [context]
 | |
| encoding: utf8
 | |
| console:
 | |
| class: logging.StreamHandler
 | |
| formatter: precise
 | |
| filters: [context]</p>
 | |
| <p>There is no need to revert this change if downgrading to Python 2.</p>
 | |
| </li>
 | |
| </ul>
 | |
| <p>We are also making available Debian packages which will run Synapse on
 | |
| Python 3. You can switch to these packages with <code>apt-get install matrix-synapse-py3</code>, however, please read <code>debian/NEWS <https://github.com/matrix-org/synapse/blob/release-v0.34.0/debian/NEWS></code>_
 | |
| before doing so. The existing <code>matrix-synapse</code> packages will continue to
 | |
| use Python 2 for the time being.</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>This release removes the <code>riot.im</code> from the default list of trusted
 | |
| identity servers.</p>
 | |
| <p>If <code>riot.im</code> is in your homeserver's list of
 | |
| <code>trusted_third_party_id_servers</code>, you should remove it. It was added in
 | |
| case a hypothetical future identity server was put there. If you don't
 | |
| remove it, users may be unable to deactivate their accounts.</p>
 | |
| </li>
 | |
| <li>
 | |
| <p>This release no longer installs the (unmaintained) Matrix Console web client
 | |
| as part of the default installation. It is possible to re-enable it by
 | |
| installing it separately and setting the <code>web_client_location</code> config
 | |
| option, but please consider switching to another client.</p>
 | |
| </li>
 | |
| </ol>
 | |
| <h1 id="upgrading-to-v0337"><a class="header" href="#upgrading-to-v0337">Upgrading to v0.33.7</a></h1>
 | |
| <p>This release removes the example email notification templates from
 | |
| <code>res/templates</code> (they are now internal to the python package). This should
 | |
| only affect you if you (a) deploy your Synapse instance from a git checkout or
 | |
| a github snapshot URL, and (b) have email notifications enabled.</p>
 | |
| <p>If you have email notifications enabled, you should ensure that
 | |
| <code>email.template_dir</code> is either configured to point at a directory where you
 | |
| have installed customised templates, or leave it unset to use the default
 | |
| templates.</p>
 | |
| <h1 id="upgrading-to-v0273"><a class="header" href="#upgrading-to-v0273">Upgrading to v0.27.3</a></h1>
 | |
| <p>This release expands the anonymous usage stats sent if the opt-in
 | |
| <code>report_stats</code> configuration is set to <code>true</code>. We now capture RSS memory
 | |
| and cpu use at a very coarse level. This requires administrators to install
 | |
| the optional <code>psutil</code> python module.</p>
 | |
| <p>We would appreciate it if you could assist by ensuring this module is available
 | |
| and <code>report_stats</code> is enabled. This will let us see if performance changes to
 | |
| synapse are having an impact to the general community.</p>
 | |
| <h1 id="upgrading-to-v0150"><a class="header" href="#upgrading-to-v0150">Upgrading to v0.15.0</a></h1>
 | |
| <p>If you want to use the new URL previewing API (/_matrix/media/r0/preview_url)
 | |
| then you have to explicitly enable it in the config and update your dependencies
 | |
| dependencies.  See README.rst for details.</p>
 | |
| <h1 id="upgrading-to-v0110"><a class="header" href="#upgrading-to-v0110">Upgrading to v0.11.0</a></h1>
 | |
| <p>This release includes the option to send anonymous usage stats to matrix.org,
 | |
| and requires that administrators explictly opt in or out by setting the
 | |
| <code>report_stats</code> option to either <code>true</code> or <code>false</code>.</p>
 | |
| <p>We would really appreciate it if you could help our project out by reporting
 | |
| anonymized usage statistics from your homeserver. Only very basic aggregate
 | |
| data (e.g. number of users) will be reported, but it helps us to track the
 | |
| growth of the Matrix community, and helps us to make Matrix a success, as well
 | |
| as to convince other networks that they should peer with us.</p>
 | |
| <h1 id="upgrading-to-v090"><a class="header" href="#upgrading-to-v090">Upgrading to v0.9.0</a></h1>
 | |
| <p>Application services have had a breaking API change in this version.</p>
 | |
| <p>They can no longer register themselves with a home server using the AS HTTP API. This
 | |
| decision was made because a compromised application service with free reign to register
 | |
| any regex in effect grants full read/write access to the home server if a regex of <code>.*</code>
 | |
| is used. An attack where a compromised AS re-registers itself with <code>.*</code> was deemed too
 | |
| big of a security risk to ignore, and so the ability to register with the HS remotely has
 | |
| been removed.</p>
 | |
| <p>It has been replaced by specifying a list of application service registrations in
 | |
| <code>homeserver.yaml</code>::</p>
 | |
| <p>app_service_config_files: ["registration-01.yaml", "registration-02.yaml"]</p>
 | |
| <p>Where <code>registration-01.yaml</code> looks like::</p>
 | |
| <p>url: <String>  # e.g. "https://my.application.service.com"
 | |
| as_token: <String>
 | |
| hs_token: <String>
 | |
| sender_localpart: <String>  # This is a new field which denotes the user_id localpart when using the AS token
 | |
| namespaces:
 | |
| users:
 | |
| - exclusive: <Boolean>
 | |
| regex: <String>  # e.g. "@prefix_.*"
 | |
| aliases:
 | |
| - exclusive: <Boolean>
 | |
| regex: <String>
 | |
| rooms:
 | |
| - exclusive: <Boolean>
 | |
| regex: <String></p>
 | |
| <h1 id="upgrading-to-v080"><a class="header" href="#upgrading-to-v080">Upgrading to v0.8.0</a></h1>
 | |
| <p>Servers which use captchas will need to add their public key to::</p>
 | |
| <p>static/client/register/register_config.js</p>
 | |
| <pre><code>window.matrixRegistrationConfig = {
 | |
|     recaptcha_public_key: "YOUR_PUBLIC_KEY"
 | |
| };
 | |
| </code></pre>
 | |
| <p>This is required in order to support registration fallback (typically used on
 | |
| mobile devices).</p>
 | |
| <h1 id="upgrading-to-v070"><a class="header" href="#upgrading-to-v070">Upgrading to v0.7.0</a></h1>
 | |
| <p>New dependencies are:</p>
 | |
| <ul>
 | |
| <li>pydenticon</li>
 | |
| <li>simplejson</li>
 | |
| <li>syutil</li>
 | |
| <li>matrix-angular-sdk</li>
 | |
| </ul>
 | |
| <p>To pull in these dependencies in a virtual env, run::</p>
 | |
| <pre><code>python synapse/python_dependencies.py | xargs -n 1 pip install
 | |
| </code></pre>
 | |
| <h1 id="upgrading-to-v060"><a class="header" href="#upgrading-to-v060">Upgrading to v0.6.0</a></h1>
 | |
| <p>To pull in new dependencies, run::</p>
 | |
| <pre><code>python setup.py develop --user
 | |
| </code></pre>
 | |
| <p>This update includes a change to the database schema. To upgrade you first need
 | |
| to upgrade the database by running::</p>
 | |
| <pre><code>python scripts/upgrade_db_to_v0.6.0.py <db> <server_name> <signing_key>
 | |
| </code></pre>
 | |
| <p>Where <code><db></code> is the location of the database, <code><server_name></code> is the
 | |
| server name as specified in the synapse configuration, and <code><signing_key></code> is
 | |
| the location of the signing key as specified in the synapse configuration.</p>
 | |
| <p>This may take some time to complete. Failures of signatures and content hashes
 | |
| can safely be ignored.</p>
 | |
| <h1 id="upgrading-to-v051"><a class="header" href="#upgrading-to-v051">Upgrading to v0.5.1</a></h1>
 | |
| <p>Depending on precisely when you installed v0.5.0 you may have ended up with
 | |
| a stale release of the reference matrix webclient installed as a python module.
 | |
| To uninstall it and ensure you are depending on the latest module, please run::</p>
 | |
| <pre><code>$ pip uninstall syweb
 | |
| </code></pre>
 | |
| <h1 id="upgrading-to-v050"><a class="header" href="#upgrading-to-v050">Upgrading to v0.5.0</a></h1>
 | |
| <p>The webclient has been split out into a seperate repository/pacakage in this
 | |
| release. Before you restart your homeserver you will need to pull in the
 | |
| webclient package by running::</p>
 | |
| <p>python setup.py develop --user</p>
 | |
| <p>This release completely changes the database schema and so requires upgrading
 | |
| it before starting the new version of the homeserver.</p>
 | |
| <p>The script "database-prepare-for-0.5.0.sh" should be used to upgrade the
 | |
| database. This will save all user information, such as logins and profiles,
 | |
| but will otherwise purge the database. This includes messages, which
 | |
| rooms the home server was a member of and room alias mappings.</p>
 | |
| <p>If you would like to keep your history, please take a copy of your database
 | |
| file and ask for help in #matrix:matrix.org. The upgrade process is,
 | |
| unfortunately, non trivial and requires human intervention to resolve any
 | |
| resulting conflicts during the upgrade process.</p>
 | |
| <p>Before running the command the homeserver should be first completely
 | |
| shutdown. To run it, simply specify the location of the database, e.g.:</p>
 | |
| <p>./scripts/database-prepare-for-0.5.0.sh "homeserver.db"</p>
 | |
| <p>Once this has successfully completed it will be safe to restart the
 | |
| homeserver. You may notice that the homeserver takes a few seconds longer to
 | |
| restart than usual as it reinitializes the database.</p>
 | |
| <p>On startup of the new version, users can either rejoin remote rooms using room
 | |
| aliases or by being reinvited. Alternatively, if any other homeserver sends a
 | |
| message to a room that the homeserver was previously in the local HS will
 | |
| automatically rejoin the room.</p>
 | |
| <h1 id="upgrading-to-v040"><a class="header" href="#upgrading-to-v040">Upgrading to v0.4.0</a></h1>
 | |
| <p>This release needs an updated syutil version. Run::</p>
 | |
| <pre><code>python setup.py develop
 | |
| </code></pre>
 | |
| <p>You will also need to upgrade your configuration as the signing key format has
 | |
| changed. Run::</p>
 | |
| <pre><code>python -m synapse.app.homeserver --config-path <CONFIG> --generate-config
 | |
| </code></pre>
 | |
| <h1 id="upgrading-to-v030"><a class="header" href="#upgrading-to-v030">Upgrading to v0.3.0</a></h1>
 | |
| <p>This registration API now closely matches the login API. This introduces a bit
 | |
| more backwards and forwards between the HS and the client, but this improves
 | |
| the overall flexibility of the API. You can now GET on /register to retrieve a list
 | |
| of valid registration flows. Upon choosing one, they are submitted in the same
 | |
| way as login, e.g::</p>
 | |
| <p>{
 | |
| type: m.login.password,
 | |
| user: foo,
 | |
| password: bar
 | |
| }</p>
 | |
| <p>The default HS supports 2 flows, with and without Identity Server email
 | |
| authentication. Enabling captcha on the HS will add in an extra step to all
 | |
| flows: <code>m.login.recaptcha</code> which must be completed before you can transition
 | |
| to the next stage. There is a new login type: <code>m.login.email.identity</code> which
 | |
| contains the <code>threepidCreds</code> key which were previously sent in the original
 | |
| register request. For more information on this, see the specification.</p>
 | |
| <h2 id="web-client"><a class="header" href="#web-client">Web Client</a></h2>
 | |
| <p>The VoIP specification has changed between v0.2.0 and v0.3.0. Users should
 | |
| refresh any browser tabs to get the latest web client code. Users on
 | |
| v0.2.0 of the web client will not be able to call those on v0.3.0 and
 | |
| vice versa.</p>
 | |
| <h1 id="upgrading-to-v020"><a class="header" href="#upgrading-to-v020">Upgrading to v0.2.0</a></h1>
 | |
| <p>The home server now requires setting up of SSL config before it can run. To
 | |
| automatically generate default config use::</p>
 | |
| <pre><code>$ python synapse/app/homeserver.py \
 | |
|     --server-name machine.my.domain.name \
 | |
|     --bind-port 8448 \
 | |
|     --config-path homeserver.config \
 | |
|     --generate-config
 | |
| </code></pre>
 | |
| <p>This config can be edited if desired, for example to specify a different SSL
 | |
| certificate to use. Once done you can run the home server using::</p>
 | |
| <pre><code>$ python synapse/app/homeserver.py --config-path homeserver.config
 | |
| </code></pre>
 | |
| <p>See the README.rst for more information.</p>
 | |
| <p>Also note that some config options have been renamed, including:</p>
 | |
| <ul>
 | |
| <li>"host" to "server-name"</li>
 | |
| <li>"database" to "database-path"</li>
 | |
| <li>"port" to "bind-port" and "unsecure-port"</li>
 | |
| </ul>
 | |
| <h1 id="upgrading-to-v001"><a class="header" href="#upgrading-to-v001">Upgrading to v0.0.1</a></h1>
 | |
| <p>This release completely changes the database schema and so requires upgrading
 | |
| it before starting the new version of the homeserver.</p>
 | |
| <p>The script "database-prepare-for-0.0.1.sh" should be used to upgrade the
 | |
| database. This will save all user information, such as logins and profiles,
 | |
| but will otherwise purge the database. This includes messages, which
 | |
| rooms the home server was a member of and room alias mappings.</p>
 | |
| <p>Before running the command the homeserver should be first completely
 | |
| shutdown. To run it, simply specify the location of the database, e.g.:</p>
 | |
| <p>./scripts/database-prepare-for-0.0.1.sh "homeserver.db"</p>
 | |
| <p>Once this has successfully completed it will be safe to restart the
 | |
| homeserver. You may notice that the homeserver takes a few seconds longer to
 | |
| restart than usual as it reinitializes the database.</p>
 | |
| <p>On startup of the new version, users can either rejoin remote rooms using room
 | |
| aliases or by being reinvited. Alternatively, if any other homeserver sends a
 | |
| message to a room that the homeserver was previously in the local HS will
 | |
| automatically rejoin the room.</p>
 | |
| 
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