Proton 6.3 released

Valve has released the next major version of Proton: Proton 6.3.

A manual installation can be forced by doing

steam steam://install/1580130

or via the library in the Steam Client (see Tools section).

Available in Proton 6.3:

6.3-1:

Newly playable games include:
Divinity: Original Sin 2
Shenmue I & II
Mass Effect 3 N7 Digital Deluxe Edition (2012)
Tom Clancy's Rainbow Six Lockdown
XCOM: Chimera Squad
Bioshock 2 Remastered
Company of Heroes 2
logiCally
Rise of the Triad
Home Behind 2
Shadow Empire
Arena Wars 2
King Arthur: Knight's Tale
Rise of Venice
ARK Park
Gravity Sketch
Battle Arena VR
Updated Wine to version 6.3.
Updated DXVK to v1.8.1.
Updated vkd3d-proton to v2.2.
Updated FAudio to 21.03.05.
Update wine-mono to 6.1.1.
Previously in Experimental: Improvements for non-US keyboard layouts.
Previously in Experimental: Improved video support. You may see test pattern videos. This is normal.
Previously in Experimental: Support setting thread priorities via RTKit, or Unix priorities if your user has permissions.
Previously in Experimental: Controller layout and hotplugging improvements in Slay the Spire and Hades.
Previously in Experimental: Improved PlayStation 5 controller support.
Previously in Experimental: Improved Virtual Reality startup time and compatibility.
Improved Uplay sign-in.
Improved G29 steering support in Assetto Corsa Competizione.
Fixed Microsoft Flight Simulator in VR mode.
Fixed cutscenes in Bioshock 2 Remastered.
Overhauled build system to greatly reduce build times.

Available in Proton Experimental (as of 2021/04/01):

All changes from Proton 6.3-1.
Performance improvements around input, windowing, and memory allocation.
Added support for Vulkan child window rendering.
Better support Anno 1404 - History Edition.
Updated file distribution method to save disk space.

More information:

https://github.com/ValveSoftware/Proton/releases/tag/proton-6.3-1
https://steamdb.info/app/1580130/