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 > System Update Channel.
General
* Fixed a WiFi regression with Steam Deck OLED
* Disabled experimental support for Wake-on-Bluetooth for Steam Deck LCD while issues with spurious wake-ups are being investigated
* Fixed a bug where visual corruption could occur with Sharp upscaling with HDR/10-bit applications when interacting with the overlay
* Fixed an issue where the cursor would not be visible in the bottom-right quadrant of the screen when using the magnifier
* Fixed cursor having a line of visual corruption when using Sharp upscaling in certain instances
* Fixed certain overlay key bindings involving Shift, the Super key, Right Alt, or Return/Enter not being able to be triggered
* Fixed input being passed to applications when overlay key bindings are invoked
* Fixed OBS Studio not working with the streaming output provided by gamescope
* Fixed an issue where clicking mailto: links sometimes didn't display the right error
Audio
* Fixed an issue where volume keys would sometimes not properly adjust the volume of the 3.5mm audio connector
* Fixed a SteamOS 3.6 regression causing audio glitches in God of War: Ragnarok
Accessibility
* Added support for optional color filters
* Added Orca screen reader and espeak-ng text-to-speech tools
* Fixed the magnifier producing the correct scale and offset when Sharp upscaling was used
Non-Deck
* Fixed an issue where the Legion Go S with SteamOS could lose trackpad functionality after sleep
* Added power button support for some AYANEO, AYN, GPD, MSI, ONEXPLAYER, and OrangePi platforms
I remember when I first got my OLED it refused to connect to my router until I disabled the 160hz band. That seems to be fixed now, but I wonder if they reintroduced that bug or something in the beta at some point.