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Right click on GameGuruMax in your Steam library
Select the Beta Tab (you do not need a key for this)
From the dropdown menu select the 18-09-2022 and update
Once done Reboot and you should be good to go and no you should not lose anything.
NOTE .. Never Ever
use Alpha, Beta or Early Development tools for important projects.
Your just asking for trouble as it changes so much in Early Development.
No one ever really leaves.