Valve have bumped SteamOS 3.8.1 from Preview to Beta, as it's now ready for more people to get testing to find any issues.Read the full article on GamingOnLinux.
SteamOS 3.8.1 now in Beta for more gamers to test new features
Valve released SteamOS 3.8.1 from Preview to Beta to expand testing for new features, which may introduce unpatched vulnerabilities or undiscovered attack surfaces. Early adopters and testers of SteamOS are affected, as undiscovered issues could expose system integrity or user data to potential risks. No CVE IDs are currently associated with this release.