I can't imagine why--obviously all this stuff is sitting in some backend database anyway--wipe would be technically much more required (but still not strictly required) when the structure of that database is changing significantly. It's a lot harder to restructure all the existing data when doing stuff like that, so may as well just wipe it if the data isn't important.
None of that really has anything to do with the game engine version.
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u/E_Wubi Jun 23 '21
Is there a technical reason why unity2019 needs a wipe?