- Vulkan support.
- Direct3D 12 support.
- Game controllers support.
Some of this was already possible using extra utilities to get vulkan going. DXVK would translate DirectX calls to Vulkan. But now it's native to Wine itself.
This is after months of progress in other areas of Linux gaming. Tools like Lutris have matured quite a bit, to help you get the precise Wine setup you need to run specific games, and Steam's Proton (a distribution of Wine) is getting better and better, with more successes than failures in getting Windows games running...
Wine is an incredibly useful piece of software that I hope always continues to get development. It's even more useful as a tool to get applications running on Mac and with Valve focusing on making it better I wonder what Linux plans Valve is baking?