You Can Now Run DirectX 8 Titles Directly through GE-Proton

Plus fixes for Fable III and a few other games.
SteamOS 3.5.5: The Biggest Steam Deck Update of the Year!

Display color adjustments, HDR, VRR, undervolting controls, updated Arch base…
Steam Deck Client Update Adds Visual Tweaks to UI, HDR Badges for Supported Games

Plus easier toggling of Steam Input being on or off.
Steam Deck Client Update Allows You to See Shader Cache Size, Adds Low Latency Option for Streaming

Plus support for the PowerA Switch Nano gamepad.
New PC Gaming Handheld Features Intel Meteor Lake CPU with Arc 5 Graphics

No word on price or availability date.
Proton Experimental Adds Compatibility to Burnout Paradise Remastered, Supports Two New Flightsticks

Along with fixes for Forza Horizon 5 and Cyberpunk 2077.
Tony Hawk’s Pro Skater 1 + 2 Gets Offline Fix - But Only for Steam Deck

Might work on desktop with -steamdeck launch parameter though.
GE-Proton8-17 Fixes Rainbow Six Siege, Alan Wake

Batman Arkham Asylum and The Song of Saya also get Protonfixes.