Upgrade Matrix configuration

app/im/config/synapse/homeserver.yaml

@@ -308,11 +308,38 @@ enable_metrics: False
 ## API Configuration ##
 
 # A list of event types that will be included in the room_invite_state
-room_invite_state_types:
+#room_invite_state_types:
-    - "m.room.join_rules"
+#    - "m.room.join_rules"
-    - "m.room.canonical_alias"
+#    - "m.room.canonical_alias"
-    - "m.room.avatar"
+#    - "m.room.avatar"
-    - "m.room.name"
+#    - "m.room.name"
+
+# Controls for the state that is shared with users who receive an invite
+# to a room
+#
+room_prejoin_state:
+   # By default, the following state event types are shared with users who
+   # receive invites to the room:
+   #
+   # - m.room.join_rules
+   # - m.room.canonical_alias
+   # - m.room.avatar
+   # - m.room.encryption
+   # - m.room.name
+   # - m.room.create
+   #
+   # Uncomment the following to disable these defaults (so that only the event
+   # types listed in 'additional_event_types' are shared). Defaults to 'false'.
+   #
+   #disable_default_event_types: true
+
+   # Additional state event types to share with users when they are invited
+   # to a room.
+   #
+   # By default, this list is empty (so only the default event types are shared).
+   #
+   #additional_event_types:
+   #  - org.example.custom.event.type
 
 
 # A list of application service config file to use
@@ -418,3 +445,6 @@ password_config:
 report_stats: false
 suppress_key_server_warning: true
 enable_group_creation: true
+
+experimental_features:
+  spaces_enabled: true