This is an old revision of the document!
XTension version 9.5.1 beta 2 is available:
https://MacHomeAutomation.com/files/xtension/xtension_9_5_1b2.dmg
New features are pretty much just the 2 plugins to support most of the 4×4 and 8×8 HDMI matrix switchers from No Hassle AV. If you have any of those to test with I would greatly appreciate you giving it a try and letting me know what happens. I do not own or have access to any of these devices and so have implemented the protocol based entirely on their slightly over simplified documentation and no testing whatsoever. There will be issues.
Change log: