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diff --git a/docs/upgrade.md b/docs/upgrade.md index 312f0b87fe..9f165551fa 100644 --- a/docs/upgrade.md +++ b/docs/upgrade.md @@ -89,6 +89,102 @@ process, for example: dpkg -i matrix-synapse-py3_1.3.0+stretch1_amd64.deb ``` +# Upgrading to v1.67.0 + +## Direct TCP replication is no longer supported: migrate to Redis + +Redis support was added in v1.13.0 with it becoming the recommended method in +v1.18.0. It replaced the old direct TCP connections (which was deprecated as of +v1.18.0) to the main process. With Redis, rather than all the workers connecting +to the main process, all the workers and the main process connect to Redis, +which relays replication commands between processes. This can give a significant +CPU saving on the main process and is a prerequisite for upcoming +performance improvements. + +To migrate to Redis add the [`redis` config](./workers.md#shared-configuration), +and remove the TCP `replication` listener from config of the master and +`worker_replication_port` from worker config. Note that a HTTP listener with a +`replication` resource is still required. + +## Minimum version of Poetry is now v1.2.0 + +The minimum supported version of poetry is now 1.2. This should only affect +those installing from a source checkout. + +## Rust requirement in the next release + +From the next major release (v1.68.0) installing Synapse from a source checkout +will require a recent Rust compiler. Those using packages or +`pip install matrix-synapse` will not be affected. + +The simplest way of installing Rust is via [rustup.rs](https://rustup.rs/) + +## SQLite version requirement in the next release + +From the next major release (v1.68.0) Synapse will require SQLite 3.27.0 or +higher. Synapse v1.67.0 will be the last major release supporting SQLite +versions 3.22 to 3.26. + +Those using docker images or Debian packages from Matrix.org will not be +affected. If you have installed from source, you should check the version of +SQLite used by Python with: + +```shell +python -c "import sqlite3; print(sqlite3.sqlite_version)" +``` + +If this is too old, refer to your distribution for advice on upgrading. + +# Upgrading to v1.66.0 + +## Delegation of email validation no longer supported + +As of this version, Synapse no longer allows the tasks of verifying email address +ownership, and password reset confirmation, to be delegated to an identity server. +This removal was previously planned for Synapse 1.64.0, but was +[delayed](https://github.com/matrix-org/synapse/issues/13421) until now to give +homeserver administrators more notice of the change. + +To continue to allow users to add email addresses to their homeserver accounts, +and perform password resets, make sure that Synapse is configured with a working +email server in the [`email` configuration +section](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#email) +(including, at a minimum, a `notif_from` setting.) + +Specifying an `email` setting under `account_threepid_delegates` will now cause +an error at startup. + +# Upgrading to v1.64.0 + +## Deprecation of the ability to delegate e-mail verification to identity servers + +Synapse v1.66.0 will remove the ability to delegate the tasks of verifying email address ownership, and password reset confirmation, to an identity server. + +If you require your homeserver to verify e-mail addresses or to support password resets via e-mail, please configure your homeserver with SMTP access so that it can send e-mails on its own behalf. +[Consult the configuration documentation for more information.](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#email) + +The option that will be removed is `account_threepid_delegates.email`. + + +## Changes to the event replication streams + +Synapse now includes a flag indicating if an event is an outlier when +replicating it to other workers. This is a forwards- and backwards-incompatible +change: v1.63 and workers cannot process events replicated by v1.64 workers, and +vice versa. + +Once all workers are upgraded to v1.64 (or downgraded to v1.63), event +replication will resume as normal. + +## frozendict release + +[frozendict 2.3.3](https://github.com/Marco-Sulla/python-frozendict/releases/tag/v2.3.3) +has recently been released, which fixes a memory leak that occurs during `/sync` +requests. We advise server administrators who installed Synapse via pip to upgrade +frozendict with `pip install --upgrade frozendict`. The Docker image +`matrixdotorg/synapse` and the Debian packages from `packages.matrix.org` already +include the updated library. + # Upgrading to v1.62.0 ## New signatures for spam checker callbacks @@ -1150,7 +1246,7 @@ updated. When setting up worker processes, we now recommend the use of a Redis server for replication. **The old direct TCP connection method is deprecated and will be removed in a future release.** See -[workers](workers.md) for more details. +the [worker documentation](https://matrix-org.github.io/synapse/v1.66/workers.html) for more details. # Upgrading to v1.14.0 |