[2023] Update download 7th August - anyone know what it is?

Because you are opted into the Vanilla Play test branch, which is a non general public 10.0 play test not yet publicly stable and there is no other general public servers because of it.

All updates happen asynchronously and at a constant pace so there is no detailing patch notes for each individual update and they can break things at any given time so play on it at your own risk. (Sea Otter official server has constant develop resources available to fix breakage but we do not guarantee any support to 3rd party servers at this time).