Airfoil 4.8.8
Rogue Amoeba has released Airfoil 4.8.8, a small but important update to the audio transmission utility. The release addresses several changes that Apple made to its Gatekeeper system and restores compatibility for those running (the as-yet-unreleased) OS X 10.9.5 Mavericks and later. Additionally, update improves how it filters its background processes for the Source pop-up menu, restores the capability to capture Text to Speech audio, and provides relevant track titles to Nicecast when using Airfoil Speakers. ($25 new with a 20 percent discount for TidBITS members, free update, 14.9 MB, release notes, 10.7+)
Rogue Amoeba has also updated at least some of their other software. On my computers, I found updates for Airfoil Speakers and Audio Hijack Pro.
Yes, those were released at the end of July:
http://tidbits.com/article/14942
They got bumped again (Audio Hijack Pro is now 2.11.1).