I have encountered some issues with occasional kernel panic reboots since upgrading (sigh) to macOS 15.4. This has nothing to do with Gig Performer – the machine can be running for days without any applications at all and it will suddenly reboot.
I was looking for solutions to this problem (I’m using a MacMini M4 only a few months old) and it turns out that if you access the Apple Support Community forums, people are reporting this issue all over the place. Nobody has a real solution at this time as far as I can tell.
GP users should just be aware that there is some kind of unresolved issue so just be very wary of this version of macOS