Note: This update is for the Steam Deck Preview channel, and includes new features that are still being tested. You can opt into this in Settings > System > System Update Channel.
Note on Preview Releases
This is an early Preview build of SteamOS 3.10, and may contain unexpected bugs or stability issues. If you encounter problems, please consider filing a bug on the SteamOS issue tracker.
The following notes are an overview, and may not include all changes since the previous SteamOS 3.9 Stable Release.
General
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Updated Arch Linux base
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Updated Desktop Mode from Plasma 6.7.3 to Plasma 6.8.2
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For more information, see
https://kde.org/announcements/plasma/6/6.8.0/
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Many security and stability improvements
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Fixed an issue where the “Slow Charger” alert could erroneously appear
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Fixed Bluetooth audio disconnection when switching between desktop and game modes
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Update timezone data for Cuba, and Canada’s Northwest Territories and Manitoba
Game Mode
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Added support for VK_EXT_present_timing
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Added support for ASUS ROG Xbox Ally X20 HDR and brightness adjustment
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Improved frame timing when using the framerate limiter with VRR
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Improved screen flickering when VRR is enabled while navigating the Steam UI or leaving it idle
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Improved cursor movement under VRR. It should now match the game’s framerate over 30FPS, and stop spiking the panel’s refresh rate up to the maximum refresh rate
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Fixed scaling causing overexposure in certain HDR titles, such as Control
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Fixed an issue with certain games, such as UBOAT and The Fruit of Grisaia, where the image would flicker and present stale frames in Game Mode
AMD Graphics
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Added support for HDMI 2.1 VRR, FRL, and ALLM
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Known issue: display may remain blank with the Dell G3223Q
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NVIDIA Graphics
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General stability and performance improvements
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Added support for Mesh Shaders on Turing and newer
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Fixes rendering corruption in Shadow of the Tomb Raider and The Surge 2
Developer
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Linux kernel rebased on Linux 7.3
