Well, I installed The Legacy version side by side with v10 on my Mac. I am not a heavy Applescript user, but the few I have, I really depend on. Legacy is working for now anyhow, but would really like to see native support. AppleScript is a huge feature to simply remove, without any alternative.
Paying customer since 2009. It might be time to seek an alternative. One that supports a Linux client and AppleScript would be a start.
-Eric