Update CHANGES.md to mention PostgreSQL 10 end of life v1.71.0

1 files changed, 2 insertions, 0 deletions

diff --git a/CHANGES.md b/CHANGES.md

index b47346dd47..078a36eac9 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -6,6 +6,8 @@ They will be removed altogether in Synapse 1.73.0.
 If not already done, server administrators should update their dashboards and alerting rules to avoid using the deprecated metric names.
 See the [upgrade notes](https://matrix-org.github.io/synapse/v1.71/upgrade.html#upgrading-to-v1710) for more details.
 
+**Note:** in line with our [deprecation policy](https://matrix-org.github.io/synapse/latest/deprecation_policy.html) for platform dependencies, this will be the last release to support PostgreSQL 10, which reaches upstream end-of-life on November 10th, 2022. Future releases of Synapse will require PostgreSQL 11+.
+
 No significant changes since 1.71.0rc2.