---
allOf:
  - $ref: core-event-schema/state_event.yaml
description: 'A state event signifying that a room has been upgraded to a different room version, and that clients should go there.'
properties:
  content:
    properties:
      body:
        type: string
        description: A server-defined message.
      replacement_room:
        type: string
        description: The new room the client should be visiting.
    required:
      - replacement_room
      - body
    type: object
  state_key:
    description: A zero-length string.
    pattern: '^$'
    type: string
  type:
    enum:
      - m.room.tombstone
    type: string
title: Indication that the room has been upgraded.
type: object