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Encourage servers to transfer whatever they can while being open-ended

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Travis Ralston 2019-01-17 13:57:02 -07:00
parent 4e0533a5f3
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6
specification/modules/room_upgrades.rst
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@ -48,10 +48,14 @@ When the client requests to upgrade a known room to a known version, the server:
2. Creates a replacement room with a ``m.room.create`` event containing a ``predecessor`` 2. Creates a replacement room with a ``m.room.create`` event containing a ``predecessor``
field and the applicable ``room_version``. field and the applicable ``room_version``.
3. Replicates the power levels, privacy, topic, and other transferable state events to 3. Replicates the power levels, privacy, topic, and other transferable state events to
the new room. This generally excludes membership events. the new room. This generally excludes membership events but may include client-specified
events and other presentation details.
4. Moves any local aliases to the new room. 4. Moves any local aliases to the new room.
5. Sends a ``m.room.tombstone`` event to the old room to indicate that it is not intended 5. Sends a ``m.room.tombstone`` event to the old room to indicate that it is not intended
to be used any further. to be used any further.
6. If possible, the power levels in the old room should also be modified to prevent sending 6. If possible, the power levels in the old room should also be modified to prevent sending
of events and inviting new users. For example, setting ``events_default`` and ``invite`` of events and inviting new users. For example, setting ``events_default`` and ``invite``
to the greater of ``50`` and ``users_default + 1``. to the greater of ``50`` and ``users_default + 1``.
When a user joins the new room, the server may wish to automatically transfer/replicate
some of the user's personalized settings such as notifications, tags, etc.