gist/matrix/m.room.tombstone

• On Matrix tombstones
  • PL50 tombstoning

On Matrix tombstones

{
  "body": "This room has been replaced",
  "replacement_room": "!NewRoomID:example.net"
}

Note my scripts for tombstoning, matrix-{tombstone,upgrade}-room.bash.

PL50 tombstoning

Synapse versions before 1.11.0 (2020-02-21), technically 1.11.0rc1 (2020-02-19) allowed power level 50 to set tombstones and thus hijack rooms. Thus this is dependent on the Synapse version used at the time of room creation.

• PR
• commit

In the same context invites were changed to require PL50 by default, and ACL also got the requirement for PL100.