I got a bug report from a user that my program didn't work on Mavericks. I tried it out - and it seems as if it's the copy protection, as the unprotected version works fine on Mavericks but the protected one didn't.
Well, it seems as if that copy protection scheme (Armadillo for Mac) simply isn't being sold any more, and will never work for Mavericks. So I tried the only other one I could find, ExeShield - their trial version didn't even generate anything that worked for 10.8, let alone 10.9.
I looked at the list of things you need to do to get into the Apple Store - http://www.juce.com/forum/topic/submitting-mac-app-store - and, well, I am not going to be able to pull this off in 2013 as a solo developer with other priorities, particularly since the Mac is a small part of our small revenue stream.
I see all this commercial audio software for Mac, that appears to be copy protected, so someone must be doing it - but I can't find anyone still offering it.
Any ideas? I'm thinking of handrolling something. But, god, it's not like I have the spare time... :-(