Sigh; Adobe has decided to spontaneously drop support for Mac OS versions older than 10.9, and the laptop I've been borrowing to push the Mac updates has OSX version 10.8.5. (The owner doesn't want to update, as every OS update slows his machine down further.)
This means that I can't push any further updates until the situation is addressed. I've basically zeroed out my checking account to order a Mac Mini, which should be arriving in about a week; I'll set it up and push an update ASAP once it arrives. In the meantime, I'm going to keep fixing bugs...