Since 2017, when P3D 4.0 first came out, GSX has never been affected by a particular build of the sim, since due to several SDK/PDK additions, we no longer do or require *any* direct memory access, like we had to do in FSX or older P3D version, and the 64 bit version of our software is 100% made using the native P3D SDK with NO memory HACKS whatsoever. Which means, hotfixes won't require any change/update anymore.
In fact, what the new Hotfix does to GSX, is the very well known bug of the Html menu locking up should have been fixed, since LM identified a problem with a different version of the Html runtime they used, which in some cases froze the sim.
Even if this affected every application with a menu, and even the default ATC, since GSX is one of the most popular apps that use the menu, some users assumed the previous Hotfix wasn't compatible with GSX, when in fact it simply had the menu bugged for every app. While I was never able to reproduce such crashes, I always got a small pause when the menu opened the first time, which doesn't happen anymore in the latest Hotfix so, clearly, something has changed in the menu for the better.