From 35ce3bda7aaa6281f02123225ca63d913fa12df1 Mon Sep 17 00:00:00 2001 From: Richard van der Hoff <1389908+richvdh@users.noreply.github.com> Date: Thu, 19 Sep 2019 15:06:48 +0100 Subject: [PATCH] Add some notes on rolling back to v1.3.1. (#6049) --- UPGRADE.rst | 25 +++++++++++++++++++++++++ changelog.d/6049.doc | 1 + 2 files changed, 26 insertions(+) create mode 100644 changelog.d/6049.doc 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 `_. +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 `_), 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 =================== diff --git a/changelog.d/6049.doc b/changelog.d/6049.doc new file mode 100644 index 0000000000..e0307bf5c1 --- /dev/null +++ b/changelog.d/6049.doc @@ -0,0 +1 @@ +Add some notes on rolling back to v1.3.1.