@patricktheart
If you lose your preferences in minor dot updates, something's wrong, like not having full administrator privileges in your user account.
With a major whole-number version update, preferences do not carry over, they never have. There is an option to migrate preferences, but I don't recommend it because of the high risk of accumulated errors carrying over as well.
As for actions, brushes, anything that can be saved out - save out and keep it in a safe place. Then it can always be easily reloaded.
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