That’s the sort of thing I was worried about. 11.4 has fixed it for me; I haven’t had a freeze since installing it. But since it’s not ‘officially’ fixed, I wondered whether a future update might break it again. I have 11.5.2 sitting in Software Update but it sounds like I shouldn’t install it…
Edit: Sorry; I’m mixing up two different threads. I haven’t had the “DumpGPURestart” issue from the other thread (Freezing of screen (GPU crashes) retail and classic) since 11.4.