[2021] Stable Update 1.15

Good spot. No, Linux is not on stable yet. Adjusted the changelog.

There was no wipe with the 1.15 update.

What do you have set for hitDirectionOverrideEnabled (see documentation)?

There is not.

In general, transfer of storages and other files between private servers is possible (assuming similar configuration, Experimental/Stable does not make a real difference here).