Mojave should provide even better experience. Please note Avx fixes are not going to ship in next patch.
The problem is that old MacPro 2010 doesn’t support Avx at all. MacPro 2013 supports Avx but not avx2. Thus we will continue to remove code and we will see how it goes. For now we are not finished yet.
MacPro 2010 might in the end be considered unsupported

but let’s see
MacPro 2013 will be definitely supported.
MacPro 2010 users should have game launching now and crash should be in lz4.
Isn't it risked to just remove it? I quoted in windows it's AVX that is used/required, not AVX2, remove for Mac everything AVX could slower pointlessly the Mac version.
I can understand you want support Mac Pro 2010, but why it worth it for a so old model? I always ignored those MacPro generations (switched from first MacPro to the one late 2013, so I don't know what was this series, but can they run the game even fairly well?
For sure, I don't have the right perspective, the best would have been a special version for non AVX. But ok it's perhaps not possible.