Update changelog

CHANGES.md

@@ -1,6 +1,10 @@
 Synapse 1.31.0rc1 (2021-03-30)
 ==============================
 
+**Note:** As announced in v1.25.0, and in line with the deprecation policy for platform dependencies, this is the last release to support Python 3.5 and PostgreSQL 9.5. Future versions of Synapse will require Python 3.6+ and PostgreSQL 9.6+.
+
+This is also the last release that the Synapse team will be publishing packages for Debian Stretch and Ubuntu Xenial.
+
 Features
 --------
 
@@ -15,7 +19,7 @@ Bugfixes
 
 - Fix a longstanding bug that could cause issues when editing a reply to a message. ([\#9585](https://github.com/matrix-org/synapse/issues/9585))
 - Fix the `/capabilities` endpoint to return `m.change_password` as disabled if the local password database is not used for authentication. Contributed by @dklimpel. ([\#9588](https://github.com/matrix-org/synapse/issues/9588))
-- Checks if passwords are allowed before setting it for the user. ([\#9636](https://github.com/matrix-org/synapse/issues/9636))
+- Check if local passwords are enabled before setting them for the user. ([\#9636](https://github.com/matrix-org/synapse/issues/9636))
 - Fix a bug where federation sending can stall due to `concurrent access` database exceptions when it falls behind. ([\#9639](https://github.com/matrix-org/synapse/issues/9639))
 - Fix a bug introduced in Synapse 1.30.1 which meant the suggested `pip` incantation to install an updated `cryptography` was incorrect. ([\#9699](https://github.com/matrix-org/synapse/issues/9699))
 
@@ -44,8 +48,8 @@ Internal Changes
 - Introduce flake8-bugbear to the test suite and fix some of its lint violations. ([\#9499](https://github.com/matrix-org/synapse/issues/9499), [\#9659](https://github.com/matrix-org/synapse/issues/9659))
 - Add additional type hints to the Homeserver object. ([\#9631](https://github.com/matrix-org/synapse/issues/9631), [\#9638](https://github.com/matrix-org/synapse/issues/9638), [\#9675](https://github.com/matrix-org/synapse/issues/9675), [\#9681](https://github.com/matrix-org/synapse/issues/9681))
 - Only save remote cross-signing and device keys if they're different from the current ones. ([\#9634](https://github.com/matrix-org/synapse/issues/9634))
-- Rename storage function to fix spelling and not conflict with another functions name. ([\#9637](https://github.com/matrix-org/synapse/issues/9637))
-- Improve performance of federation catch up by sending events the latest events in the room to the remote, rather than just the last event sent by the local server. ([\#9640](https://github.com/matrix-org/synapse/issues/9640), [\#9664](https://github.com/matrix-org/synapse/issues/9664))
+- Rename storage function to fix spelling and not conflict with another function's name. ([\#9637](https://github.com/matrix-org/synapse/issues/9637))
+- Improve performance of federation catch up by sending the latest events in the room to the remote, rather than just the last event sent by the local server. ([\#9640](https://github.com/matrix-org/synapse/issues/9640), [\#9664](https://github.com/matrix-org/synapse/issues/9664))
 - In the `federation_client` commandline client, stop automatically adding the URL prefix, so that servlets on other prefixes can be tested. ([\#9645](https://github.com/matrix-org/synapse/issues/9645))
 - In the `federation_client` commandline client, handle inline `signing_key`s in `homeserver.yaml`. ([\#9647](https://github.com/matrix-org/synapse/issues/9647))
 - Fixed some antipattern issues to improve code quality. ([\#9649](https://github.com/matrix-org/synapse/issues/9649))