Define room version 7

proposals/xxxx-rooms-v7.md

@@ -0,0 +1,16 @@
+# MSCXXXX: Room Version 7
+
+A new room version, `7`, is proposed using [room version 6](https://matrix.org/docs/spec/rooms/v6.html) as a base
+and incorporating the following MSCs:
+
+* [MSC2174](https://github.com/matrix-org/matrix-doc/pull/2174) - Move the `redacts` key to a sane place.
+* [MSC2175](https://github.com/matrix-org/matrix-doc/pull/2175) - Remove the `creator` field from `m.room.create` events.
+* [MSC2176](https://github.com/matrix-org/matrix-doc/pull/2176) - Update the redaction rules.
+* [MSC2403](https://github.com/matrix-org/matrix-doc/pull/2403) - Add "knock" feature.
+
+
+Though other MSCs are capable of being included in this version, they do not have sufficient implementation to be
+considered stable enough for v6 rooms. A future room version may still include them.
+
+Room version 7 upon being added to the specification shall be considered stable. No other room versions are affected
+by this MSC.