Merge v1.35.0rc3 into v1.35.0 due to incorrect tagging

Author: anoadragon453

CHANGES.md

@@ -1,17 +1,13 @@
 Synapse 1.35.0 (2021-06-01)
 ===========================
 
-No changes since v1.35.0rc3.
+Note that [the tag](https://github.com/matrix-org/synapse/releases/tag/v1.35.0rc3) and [docker images](https://hub.docker.com/layers/matrixdotorg/synapse/v1.35.0rc3/images/sha256-34ccc87bd99a17e2cbc0902e678b5937d16bdc1991ead097eee6096481ecf2c4?context=explore) for `v1.35.0rc3` were incorrectly built. If you are experiencing issues with either, it is recommended to upgrade to the equivalent tag or docker image for the `v1.35.0` release.
 
 Deprecations and Removals
 -------------------------
 
 - The core Synapse development team plan to drop support for the [unstable API of MSC2858](https://github.com/matrix-org/matrix-doc/blob/master/proposals/2858-Multiple-SSO-Identity-Providers.md#unstable-prefix), including the undocumented `experimental.msc2858_enabled` config option, in August 2021. Client authors should ensure that their clients are updated to use the stable API (which has been supported since Synapse 1.30) well before that time, to give their users time to upgrade. ([\#10101](https://github.com/matrix-org/synapse/issues/10101))
 
-
-Synapse 1.35.0rc3 (2021-05-28)
-==============================
-
 Bugfixes
 --------