Update changelog

CHANGELOG.rst

@@ -9,6 +9,23 @@ and this project adheres to `Semantic Versioning`_.
 Unreleased
 ----------
 
+Added
+~~~~~
+
+* Frontend for managing rooms.
+* [Dev] Components for implementing standard CRUD operations in new frontend.
+* [Dev] Options for filtering and sorting of GraphQL queries at the server.
+
+Changed
+~~~~~~~
+
+* Management of school terms was migrated to new frontend.
+
+Fixed
+~~~~~
+
+* GraphQL mutations did not return errors in case of exceptions.
+
 `3.1.2`_ - 2023-07-05
 ---------------------
 
@@ -210,7 +227,6 @@ Fixed
   update
 * [Dev] Site reference on extensible models can no longer cause name clashes
   because of its related name
-* GraphQL mutations did not return errors in case of exceptions.
 
 Removed
 ~~~~~~~