Update changelog

Author: erikjohnston

CHANGES.md

@@ -1,10 +1,15 @@
 Synapse 1.41.0 (2021-08-24)
 ===========================
 
+This release adds support for Debian 12 (Bookworm), but **removes support for Ubuntu 20.10 (Groovy Gorilla)**, which reached End of Life last month.
+
+Note that when using workers the `/_synapse/admin/v1/users/{userId}/media` must now be handled by media workers. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html) for more information.
+
+
 Features
 --------
 
-- Enable room capabilities ([MSC3244](https://github.com/matrix-org/matrix-doc/pull/3244)) by default and set room version 8 as the preferred room version for restricted rooms. ([\#10571](https://github.com/matrix-org/synapse/issues/10571))
+- Enable room capabilities ([MSC3244](https://github.com/matrix-org/matrix-doc/pull/3244)) by default and set room version 8 as the preferred room version when creating restricted rooms. ([\#10571](https://github.com/matrix-org/synapse/issues/10571))
 
 
 Synapse 1.41.0rc1 (2021-08-18)
@@ -16,7 +21,7 @@ Features
 - Add `get_userinfo_by_id` method to ModuleApi. ([\#9581](https://github.com/matrix-org/synapse/issues/9581))
 - Initial local support for [MSC3266](https://github.com/matrix-org/synapse/pull/10394), Room Summary over the unstable `/rooms/{roomIdOrAlias}/summary` API. ([\#10394](https://github.com/matrix-org/synapse/issues/10394))
 - Experimental support for [MSC3288](https://github.com/matrix-org/matrix-doc/pull/3288), sending `room_type` to the identity server for 3pid invites over the `/store-invite` API. ([\#10435](https://github.com/matrix-org/synapse/issues/10435))
-- Add support for sending federation requests through a proxy. Contributed by @Bubu and @dklimpel. ([\#10475](https://github.com/matrix-org/synapse/issues/10475))
+- Add support for sending federation requests through a proxy. Contributed by @Bubu and @dklimpel. See the [upgrade notes](https://matrix-org.github.io/synapse/latest/upgrade.html) for more information. ([\#10596](https://github.com/matrix-org/synapse/issues/10596)). ([\#10475](https://github.com/matrix-org/synapse/issues/10475))
 - Add support for "marker" events which makes historical events discoverable for servers that already have all of the scrollback history (part of [MSC2716](https://github.com/matrix-org/matrix-doc/pull/2716)). ([\#10498](https://github.com/matrix-org/synapse/issues/10498))
 - Add a configuration setting for the time a `/sync` response is cached for. ([\#10513](https://github.com/matrix-org/synapse/issues/10513))
 - The default logging handler for new installations is now `PeriodicallyFlushingMemoryHandler`, a buffered logging handler which periodically flushes itself. ([\#10518](https://github.com/matrix-org/synapse/issues/10518))
@@ -38,7 +43,7 @@ Bugfixes
 - Add some clarification to the sample config file. Contributed by @Kentokamoto. ([\#10129](https://github.com/matrix-org/synapse/issues/10129))
 - Fix a long-standing bug where protocols which are not implemented by any appservices were incorrectly returned via `GET /_matrix/client/r0/thirdparty/protocols`. ([\#10532](https://github.com/matrix-org/synapse/issues/10532))
 - Fix exceptions in logs when failing to get remote room list. ([\#10541](https://github.com/matrix-org/synapse/issues/10541))
-- Fix longstanding bug which caused the user "status" to be reset when the user went offline. Contributed by @dklimpel. ([\#10550](https://github.com/matrix-org/synapse/issues/10550))
+- Fix longstanding bug which caused the user's presence "status message" to be reset when the user went offline. Contributed by @dklimpel. ([\#10550](https://github.com/matrix-org/synapse/issues/10550))
 - Allow public rooms to be previewed in the spaces summary APIs from [MSC2946](https://github.com/matrix-org/matrix-doc/pull/2946). ([\#10580](https://github.com/matrix-org/synapse/issues/10580))
 - Fix a bug introduced in v1.37.1 where an error could occur in the asynchronous processing of PDUs when the queue was empty. ([\#10592](https://github.com/matrix-org/synapse/issues/10592))
 - Fix errors on /sync when read receipt data is a string. Only affects homeservers with the experimental flag for [MSC2285](https://github.com/matrix-org/matrix-doc/pull/2285) enabled. Contributed by @SimonBrandner. ([\#10606](https://github.com/matrix-org/synapse/issues/10606))
@@ -49,7 +54,7 @@ Bugfixes
 Improved Documentation
 ----------------------
 
-- Add documentation for configuration a forward proxy. ([\#10443](https://github.com/matrix-org/synapse/issues/10443))
+- Add documentation for configuring a forward proxy. ([\#10443](https://github.com/matrix-org/synapse/issues/10443))
 - Updated the reverse proxy documentation to highlight the homserver configuration that is needed to make Synapse aware that is is intentionally reverse proxied. ([\#10551](https://github.com/matrix-org/synapse/issues/10551))
 - Update CONTRIBUTING.md to fix index links and the instructions for SyTest in docker. ([\#10599](https://github.com/matrix-org/synapse/issues/10599))