2.0 was unplayable because because arcade mode would crash when you finish a run in the arcade mode, or when you got caught by the girls and then return to main menu of arcade mode. They then had to disable it for the 2.1 because they need to fix it so its playable with no crashes.
The admins on Discord said that the next update for the public version is delayed until they have the Arcade mode fixed.
When that would arrive is unknown, but it could be that they gonna skip 2.0 or 2.1 update for when the Arcade mode is fixed. So you could end up on being able to play the 2.2 version, but so far lets just wait and hope they able to fix the Arcade mode, so people can catch up on the latest public update.