FYI, I asked an Apple employee yesterday if there is anything wrt AppleScript in 10.15. His reply was:
“No new features, a number of smallish bug fixes. There are two significant (potential) compatibility issues:
1. The dedicated System partition means many system folder locations have changed. If you’re hard-coding them, stop, and use “path to” instead.
2. “do shell script with administrator privileges” has a new implementation that improves security. However, it also precludes presenting UI from within the privileged command. Break the command apart so the privileged part is as small as possible.”
Radar early; radar often!