Note: This update is for the Steam Deck Beta and Preview channels, and includes new features that are still being tested. You can opt into this in Settings > System > Steam Update Channel.
General
Fixed game beta success/failure and dropdown not updating when opting into a password-protected beta branch
Fixed a regression in ISteamHTTP talking to servers with ALPN TLS extensions but no HTTP/2 support
Steam Deck Desktop
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Fixed Big Picture Mode not opening when Steam is set to launch on startup when configured as the default mode
Source: https://store.steampowered.com/news/app ... 7618874620