Valve has released the new version 7.0-3 of Proton .

7.0-3:

Valve has released another update to Proton: Proton 6.3-8.

6.3-8:

Valve has released another update for Proton: Proton 6.3-7.

6.3-7:

Valve has released another update for Proton: Proton 6.3-5.

6.3-5:

Valve has released another update to Proton: Proton 6.3-4.

6.3-4:

Fix recent 2K Games launcher update
Fix error on startup for some Direct3D 12 games
Fix Divinity Original Sin 2 and Rise of Venice launcher display issues
Fix Star Wars Squadrons VR incorrectly launching to desktop
Fix Sacred Gold visual artifacts

Valve has released a small update for Proton: Proton 6.3-2.

6.3-2:

Fix stuttering mouse cursor issue during longer play sessions.

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: