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| -rw-r--r-- | UPGRADE.rst | 25 |
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diff --git a/UPGRADE.rst b/UPGRADE.rst index 5aaf804902..53f3af4ed1 100644 --- a/UPGRADE.rst +++ b/UPGRADE.rst @@ -99,6 +99,31 @@ Synapse will expect these files to exist inside the configured template director default templates, see `synapse/res/templates <https://github.com/matrix-org/synapse/tree/master/synapse/res/templates>`_. +Rolling back to v1.3.1 +---------------------- + +If you encounter problems with v1.4.0, it should be possible to roll back to +v1.3.1, subject to the following: + +* The 'room statistics' engine was heavily reworked in this release (see + `#5971 <https://github.com/matrix-org/synapse/pull/5971>`_), 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. + + 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 `homeserver.yaml`: + + .. code:: yaml + + stats: + enabled: false + + Don't forget to re-enable it when you upgrade again, in preparation for its + use in the room directory! + Upgrading to v1.2.0 =================== |