Marco wiped sweat from his brow. The AVID system was a beast—a $50,000 rig that had mixed Grammy-winning albums. But for the last 72 hours, it had been possessed. Random -9173 errors. CPU spikes that hit 100% and stayed there, laughing. Then the whispers.
Pro Tools 10.3.10 is not qualified for macOS 10.9 (Mavericks) or higher. It is officially supported on Mac OS X 10.7 through 10.8.5.
Because this is a "hot" fix, it bypasses the standard Avid Application Manager protocol. You will not find this in a standard "Update All" routine. Here is the professional method to install it safely.
: The installer for Avid Virtual Instruments was updated specifically for Mac to include support for Apple's Gatekeeper security feature, which was not required for the Windows version.
The 10310 r3 hotfix specifically patches the DAE (Digidesign Audio Engine) memory addressing related to how Pro Tools HD communicates with Mac’s I/O Kit. In layman’s terms: it stops the software from shouting at your hardware in a language macOS no longer wanted to hear.