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-Synapse 1.69.0rc3 (2022-10-12)
+Synapse 1.69.0rc4 (2022-10-14)
 ==============================
 
 Please note that legacy Prometheus metric names are now deprecated and will be removed in Synapse 1.73.0.
@@ -9,6 +9,21 @@ See the [upgrade notes](https://matrix-org.github.io/synapse/v1.69/upgrade.html#
 Bugfixes
 --------
 
+- Fix poor performance of the `event_push_backfill_thread_id` background update, which was introduced in Synapse 1.68.0rc1. ([\#14172](https://github.com/matrix-org/synapse/issues/14172), [\#14181](https://github.com/matrix-org/synapse/issues/14181))
+
+
+Updates to the Docker image
+---------------------------
+
+- Fix docker build OOMing in CI for arm64 builds. ([\#14173](https://github.com/matrix-org/synapse/issues/14173))
+
+
+Synapse 1.69.0rc3 (2022-10-12)
+==============================
+
+Bugfixes
+--------
+
 - Fix an issue with Docker images causing the Rust dependencies to not be pinned correctly. Introduced in v1.68.0 ([\#14129](https://github.com/matrix-org/synapse/issues/14129))
 - Fix a bug introduced in Synapse 1.69.0rc1 which would cause registration replication requests to fail if the worker sending the request is not running Synapse 1.69. ([\#14135](https://github.com/matrix-org/synapse/issues/14135))
 - Fix error in background update when rotating existing notifications. Introduced in v1.69.0rc2. ([\#14138](https://github.com/matrix-org/synapse/issues/14138))