The first Steam Play Proton release of 2020 is now available with 4.11-12 which is mainly a cleanup.
Looking to get started with Steam Play on Linux? Be sure to check our previous beginners guide for some tips and explanations. We'll be keeping that up to date with any major changes.
DXVK, the translation layer the converts Direct 3D 9/10/11 to Vulkan which forms part of Proton was upgraded to the 1.5.1 release from last week. So all the changes there like performance improvements for D3D9 and bug fixes for some big titles like GTA V are available now.
Also included is a fix for Xbox controller buttons in Elex, better mouse behaviour in IL-2 Sturmovik, support for newer OpenVR SDKs making Audioshield and Dance Collider playable plus a steamworks SDK update.
While it might be small, it's a nice focused release to keep Proton running smoothly. I expect the next major Proton update to be after Wine 5.0 is released which should be later this month. Wine 5.0 is currently going through Release Candidates to have final polishing. Proton is currently quite a number of versions behind on Wine now, so it's probably going to see a good boost in compatibility once Proton pulls it in.
As always, see the Proton changelog here.