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authorAndrew Morgan <andrew@amorgan.xyz>2021-04-20 17:14:15 +0100
committerAndrew Morgan <andrew@amorgan.xyz>2021-04-20 17:14:15 +0100
commiteccacd72cbaf16549379f07fbe7306b0bc54339c (patch)
treea3717d5001f3240c031b59e7766804882f8907dd
parentMerge branch 'master' into develop (diff)
parentMention Prometheus metrics regression in v1.32.0 (diff)
downloadsynapse-eccacd72cbaf16549379f07fbe7306b0bc54339c.tar.xz
Merge branch 'master' into develop
-rw-r--r--CHANGES.md6
-rw-r--r--UPGRADE.rst9
2 files changed, 15 insertions, 0 deletions
diff --git a/CHANGES.md b/CHANGES.md
index 170d1e447d..7713328f12 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,6 +1,12 @@
 Synapse 1.32.0 (2021-04-20)
 ===========================
 
+**Note:** This release introduces [a regression](https://githubcom/matrix-org/synapse/issues/9853)
+that can overwhelm connected Prometheus instances. This issue was not present in
+Synapse v1.32.0rc1. It is recommended not to update to this release. If you have
+upgraded to v1.32.0 already, please downgrade to v1.31.0. This issue will be
+resolved in a subsequent release version shortly.
+
 **Note:** This release requires Python 3.6+ and Postgres 9.6+ or SQLite 3.22+.
 
 This release removes the deprecated `GET /_synapse/admin/v1/users/<user_id>` admin API. Please use the [v2 API](https://github.com/matrix-org/synapse/blob/develop/docs/admin_api/user_admin_api.rst#query-user-account) instead, which has improved capabilities.
diff --git a/UPGRADE.rst b/UPGRADE.rst
index dc87b84cad..e3e0c1e40d 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -111,6 +111,15 @@ upon attempting to use a valid renewal token more than once.
 Upgrading to v1.32.0
 ====================
 
+Regression causing connected Prometheus instances to become overwhelmed
+-----------------------------------------------------------------------
+
+This release introduces `a regression <https://githubcom/matrix-org/synapse/issues/9853>`_
+that can overwhelm connected Prometheus instances. This issue was not present in
+Synapse v1.32.0rc1. It is recommended not to update to this release. If you have
+upgraded to v1.32.0 already, please downgrade to v1.31.0. This issue will be
+resolved in a subsequent release version shortly.
+
 Dropping support for old Python, Postgres and SQLite versions
 -------------------------------------------------------------