Valve updated Proton Experimental on June 10th to bring more bug fixes for running Windows games on Linux / SteamOS systems.
As a brief little reminder on what it is – Proton Experimental is like their testing ground for future stable numbered version Proton updates (like the upcoming Proton 11 that’s currently in Beta).
You can install any version of Proton by just searching for “Proton” in your Steam Library.
If you already have them installed, they will just show up as updates in your Steam Downloads.
Check out the updated GamingOnLinux Guide to all the different Proton versions.
Source: Valve GitHub
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**📚 Original Source:**
[Proton Experimental gets fixes for Path of Exile 1 & 2, Guild Wars 2, Call of Duty (2003), Exanima and more](https://www.gamingonlinux.com/2026/06/proton-experimental-gets-fixes-for-path-of-exile-1-2-guild-wars-2-call-of-duty-2003-exanima-and-more/)
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