Update roadmap

ROADMAP.md

@@ -10,16 +10,10 @@
       * [x] Videos
       * [x] Images
       * [ ] Locations
-    * [ ] Replies
-      * [x] In DMs
-      * [ ] In multi-user rooms
-      * [ ] To relay users
-    * [ ] Mentions
-      * [x] In DMs
-      * [ ] In multi-user rooms
-      * [x] To relay users
+    * [x] Replies<sup>[1]</sup>
+    * [x] Mentions<sup>[1]</sup>
     * [ ] Polls
-  * [x] Message redactions<sup>[1]</sup>
+  * [x] Message redactions<sup>[2]</sup>
   * [ ] Message reactions
   * [x] Read receipts
   * [x] Power level
@@ -29,6 +23,7 @@
     * [ ] Leave
   * [ ] Room metadata changes
     * [ ] Name
+    * [ ] Topic
     * [ ] Avatar
     * [ ] Per-room user nick
 * KakaoTalk → Matrix
@@ -57,12 +52,10 @@
     * [x] Add member
     * [x] Remove member
     * [x] Leave
-  * [ ] Chat metadata changes
-    * [x] Title
-    * [ ] Avatar
-  * [ ] Initial chat metadata
-    * [x] Title
-    * [ ] Avatar
+  * [x] Channel metadata
+    * [x] Name
+    * [x] Description
+    * [x] Cover photo<sup>[3]</sup>
   * [x] User metadata
     * [x] Name
     * [x] Avatar
@@ -79,4 +72,6 @@
     * [ ] For new KakaoTalk channels
   * [x] Option to use own Matrix account for messages sent from other KakaoTalk clients
 
-<sup>[1]</sup> Only recently-sent messages can be deleted
+<sup>[1]</sup> Sometimes fails with "Invalid body" error
+<sup>[2]</sup> Only recently-sent messages can be deleted
+<sup>[3]</sup> Might only get synced on backfill, or on changing channel name/description