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General

• Updated to a newer Arch Linux base
• Updated the Linux kernel to 6.11
• Updated the Mesa graphics driver base
• Desktop mode now ships with Plasma 6.2.5
• Beginnings of support for non-Steam Deck handhelds

Controllers and Input

• Add support for the Proteus Byowave controller
• Fixed an issue where Switch Pro Controller gyros might not work on first connection
• Fixed an issue with stuck/hanging controller inputs when exiting Steam
• Bluetooth
• Fixed Bluetooth devices still being able to wake the Steam Deck from suspend, even when Bluetooth was disabled from
  Desktop mode
• Enable HFP/HSP profiles, to allow using the integrated microphone from headsets and earbuds
• Currently only available to select in Desktop mode
• Added battery level display for supported Bluetooth devices
• Include a bugfix for the Airpods when using the AAC codec
• Bluetooth controllers can now wake LCD units from sleep, previously only available on OLED models
  • Known issue: Bluetooth LE based controllers are not currently compatible with bluetooth wake on LCD models

Steam Deck Dock

• Made compatibility improvements for certain displays including TCL FireTV models and Dell VRR capable monitors
  Graphics and Performance
• Enabled AMD P-State CPU frequency control
• Fixed a performance regression for No Rest for the Wicked

Desktop

• Updated to Plasma 6.2.5 (previously 5.27.10) - see the big changes in Plasma 6 here
• Surround sound now works correctly
• Enabling the setting is currently only available via Desktop mode
• KDE Filelight is now installed by default for disk usage visualization and low disk space notifications
• Speed and robustness improvements when switching between desktop and game mode
• Fixed a common cause of hangs when switching to desktop mode
• Fixed some cases where Steam could take up to ninety seconds to exit on shutdown or switch to desktop
• Added 'gocryptfs' support to desktop session to enable use of the Plasma Vaults feature

Misc

• Fixed some cases where "filter-chain" or other virtual sound devices would erroneously appear in the UI
• Fixed cases where applying system updates could fail if certain configuration files were corrupted or malformed
• Various enhancements to System Report functionality for support and troubleshooting
• Fixed compatibility issue with certain DNS servers causing very slow domain lookups
• Improved responsiveness of system when running into out-of-memory crash situations
• Enabled IPv6 Privacy Extensions by default