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

• Updated Arch Linux base

• Updated Desktop Mode from Plasma 6.7.3 to Plasma 6.8.2

  • For more information, see
    https://kde.org/announcements/plasma/6/6.8.0/

• Many security and stability improvements

• Fixed an issue where the "Slow Charger" alert could erroneously appear

• Fixed Bluetooth audio disconnection when switching between desktop and game modes

• Update timezone data for Cuba, and Canada's Northwest Territories and Manitoba

Game Mode

• Added support for VK_EXT_present_timing

• Added support for ASUS ROG Xbox Ally X20 HDR and brightness adjustment

• Improved frame timing when using the framerate limiter with VRR

• Improved screen flickering when VRR is enabled while navigating the Steam UI or leaving it idle

• 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

• Fixed scaling causing overexposure in certain HDR titles, such as Control

• 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

• Added support for HDMI 2.1 VRR, FRL, and ALLM

  • Known issue: display may remain blank with the Dell G3223Q

NVIDIA Graphics

• General stability and performance improvements

• Added support for Mesh Shaders on Turing and newer

• Fixes rendering corruption in Shadow of the Tomb Raider and The Surge 2

Developer

• Linux kernel rebased on Linux 7.3

This update is for the SteamOS Beta and Preview channels, and includes new features that are still being tested. You can opt into this in Settings > System > System Update Channel.

These notes contain all changes since the current stable SteamOS 3.8 release, with the changes added since the previous 3.9 preview releases noted below

General

• Security and stability updates.

• Improved frame timing when using the framerate limiter with VRR.

• Improved frame timing when using the framerate limiter without VRR. A capped game whose framerate is a multiple of the limit no longer drops below it, e.g. a 30 FPS game with a 60 FPS limit at 120 Hz running at 24 FPS.

• Reduced missed frames on fixed refresh caused by slow wakeups from deep CPU idle states.

• Fixed a black screen in RPG Maker games using Fullscreen++, such as Waste Walkers.

• Fixed games running below the refresh rate on 240 Hz and higher displays.

• Fixed Steam Remote Play showing a green screen on NVIDIA GPUs.

• Fixed left click getting stuck after a two-finger tap on the touchscreen.

• Fixed SDR content looking oversaturated on HDR10 output on displays that are not wide gamut.

• Fixed gamemode and other LD_PRELOAD libraries breaking when launched through gamescope.

• Fixed several rare crashes and memory errors on shutdown and when clients exit.

Desktop Mode

• Fixed a regression where scripts couldn't be added using "Add to Steam"

General

• Updated Arch Linux base

• Updated Desktop Mode from Plasma 6.4.3 to Plasma 6.7.3

  • For more information, see
    https://kde.org/announcements/plasma/6/6.7.0/
    https://kde.org/announcements/plasma/6/6.6.0/
    https://kde.org/announcements/plasma/6/6.5.0/

• Improved support for Steam Frame wireless adapter

• Fixed a bug causing hidden WiFi networks to fail to connect on the first attempt

• Fixed Steam Remote Play not working on Steam Machine when booting with no external display connected

• Fixed "Disable Frame Limiter" toggle not working when VRR is enabled

• Fixed the frame limiter incorrectly applying to VR titles when streaming from Steam Machine to Steam Frame

• Fixed loss of input if a launcher window is accidentally dragged around in Game Mode

• Fixed an issue causing frame limits to result in lower than intended FPS on certain external displays

• Fixed issues with suspend/resume on systems with RDNA1 or RDNA2 based dedicated GPUs

• Fixed audio issues on hotplug of certain monitors in a multi-monitor setup

• Fixed an issue causing firmware updates to occasionally fail to apply on Steam Machine

• Fixed a system crash when launching Forza Horizon 6 on Legion Go 2

• Added preliminary support for Legion Go 2 brightness control

• Fixed an issue causing certain games (incl. ELDEN RING and DARK SOULS™ III) to fail to run on recent Panther Lake Intel CPUs

• Fixed performance issues in STAR WARS: Galactic Racer on resume from suspend on Steam Machine

• Fixed an issue that could lead to GPU errors in The Crew Motorfest

• Worked around a firmware issue on some ASUS devices causing excessive fan speed upon waking from sleep

• Fixed boot screen corruption on Intel PTL+ devices

• Fixed a bug wherein changing the timezone could prevent switching to Desktop Mode until a reboot

• Improved idle power consumption on Steam Deck when no audio is playing

• Security and stability updates

Misc

• Updated the bootloader to improve compatibility with certain motherboards

• The Desktop Mode lockscreen is no longer prevented from being explicitly enabled in settings (but remains off by default)

• Fixed logging in to Desktop Mode via RDP with system users when enabled

Developer

• Switched WiFi backend to wpa_supplicant by default, improving compatibility with various WiFi networks

  • Enhanced wpa_supplicant to support fast WiFi reconnect on resume from sleep, previously only available in the iwd backend

• Linux kernel rebased on Linux 7.2

• Added preliminary support for hibernation, not yet exposed in Game Mode UI

  • Enhanced Linux kernel hibernation support to enable interrupting hibernate requests and fixed various driver issues

  • Not yet enabled on Steam Deck due to an outstanding driver bug

• Various scripts and packages have been renamed from `steamos-` to `holo-`, with aliases to the former names where appropriate

• Improved support for running SteamOS as a VM guest with accelerated graphics (virtio-gpu, venus)

• Updated included renderdoc version

• Reintroduced support for Android binder IPC

我們剛推出了針對穩定頻道的 Steam 用戶端更新。

Steam 成就組合

整理、追蹤和集齊遊戲成就的新方式。 在公告中閱讀更多詳細資訊。

• 遊戲現在可以為遊戲主程式與 DLC 內容整理成就並將其分組

• DLC 成就可透過成就組合新增，且不會影響遊戲的全成就狀態

• 新增成就組合時，已完成的成就組合仍會保持完成狀態

• 如果成就和組合為季節性或已無法達成，則可以將其封存

• 更新成就頁面與成就總結顯示

一般

• 硬體相容性對話框現會包含玩家在 Steam Deck 上進行遊戲時的平均幀率。可在此處深入了解這項更新

• 來自好友的遊戲邀請現在於聊天分頁的文字輸入欄上方有專屬的 Widget，不再需要特地前往聊天歷史視窗並找到確切的邀請訊息。來自群組內好友的個別邀請也會顯示在群組聊天視窗中，不再需要前往個別好友的一對一聊天分頁才能接受邀請

• 更新聊天分頁的樣式以更清楚地呈現焦點狀態

• 改善群組聊天版面並修正遊戲手把導覽可能卡住的區域

• 好友聊天訊息通知現會合併顯示，而非為每則訊息傳送一個持續兩秒的通知

• 為 Big Picture 模式中的好友內容選單新增調整個別好友語音聊天音量的功能

• 改善快捷選單的反應速度

• 新增時區選項以配合因夏令時間而有變動的地區，如英屬哥倫比亞、亞伯達、曼尼托巴

• 啟用高對比時，首頁畫面會顯示背景圖

• 修正會造成個別好友通知設定被忽略的程式錯誤

• 通知設定的版面配置已經調整，在所有視窗尺寸下都能更輕鬆地操作

• 現在個別好友通知的設定會在所有情況下正確覆寫全域通知設定

• 自在公開用戶端中推出前一輪改善後，推出第二輪 Steam 啟動效能改善

• 語音聊天內好友輸出音量設定現在會於 Steam 工作階段間保留，而不會在重啟時重設

• 讓玩家選擇提供匿名幀率資料的提示現也會在 Steam 桌面用戶端出現

• 多項整體穩定性改進，並修正少數使用者遇到的罕見當機問題

• 新增更新進度偶爾會卡在 99% 的替代解決方案

• 修正 Steam 服務錯誤對話框在您快速退出 / 重啟 Steam 時錯誤顯示的一些情況

• 修正多種可能導致遊戲串流與控制器程式碼出現記憶體流失的罕見情況

• 修正為英屬哥倫比亞省的使用者顯示錯誤日期的問題

• 修正 Steam 雲端同步會在如《Monster Hunter World》等部分遊戲中錯誤顯示同步衝突的情況

• 修正「解除安裝失敗」對話框未顯示的問題

• 修正在韌體更新套用完成後，仍會持續數秒顯示有可用更新的情況

• 修正在啟動時登入失敗，需要切換為離線模式以載入好友名單，而可能導致好友名單卡住的問題

• 修正當多位好友前後在 10 秒內開始遊戲時，「好友加入遊戲」通知會漏發的問題

• 修正會造成「好友上線時」和「好友加入遊戲時」通知的音效不遵照「顯示快顯通知」和「顯示快顯通知時也播放音效」的設定的程式問題

• 修正 Steam Frame 僅限原生的內容在 Windows 上顯示為可安裝的問題

• 修正語音聊天內容選單的音量控制條版面的問題

• 修正 Steam 視窗會短暫閃爍黑幕的各種情況

收藏庫

• 改善動態的離線支援，並修正先前可能會跳過載入一些事件的情況

商店

• 更新搜尋建議和文字搜尋的演算法

遠端暢玩

• 新增「顯示樣式」設定，當串流的長寬比與用戶端顯示畫面不同時可選擇延展或縮放

• 大幅翻新對 HDR 的支援：

  • 新增 HDR 的進階用戶端設定，選項包括自動（當啟用 HDR 內容時一同啟用）、開啟（永遠開啟、允許為 SDR 內容提高亮度）以及關閉

  • 在串流重疊介面中新增亮度控制條

  • 除了在遊戲內與 Windows 桌面上支援 HDR 之外，現也在使用 PireWire 的 Linux 桌面上以及從 macOS 串流時支援 HDR 擷取功能

  • 重新在 Steam Deck OLED 上啟用 HDR

  • 為搭載 Android 15 以上版本的 Android 手機在使用測試版的 Steam 串流應用程式時啟用 HDR（https://play.google.com/apps/testing/com.valvesoftware.steamlink）

• 加快連線至區域網路電腦時的串流啟動速度

• 修正 Steam Controller 上的「…」按鍵輸入未傳遞至遠端那側的問題

Steam 輸入

• 新增對 GameInput v4 的支援

• 修正《EA SPORTS™ College Football 27》未在遊戲啟動時套用遊戲配置的問題

• 修正「陀螺儀輸出為搖桿視角」和「陀螺儀輸出為搖桿偏離」模式中的「搖桿功率曲線」設定。此設定先前並未被套用。如果先前變更過此設定，回應可能有所不同——如有需要，請先重設此設定，然後再進一步調整

• 修正「監聽綁定」模式中，使用方向鍵輸入時可能會綁定多個項目的程式錯誤

Linux

• Steam 用戶端現已改為 64 位元應用程式

• Steam 用戶端現可於 Steam 執行階段容器內執行

  • 這有助於 Steam 用戶端在不同發行版本之間提供更一致的體驗。這與 Steam 遊戲所使用的技術相同

• 重新設計 Steam 更新程式的使用者介面

• 修正 Steam 更新程式介面無法向一些使用者顯示的問題

• 修正從暫停改為繼續時的當機問題

• 修正在使用 ISteamNetworking 介面的遊戲（例如《Sons Of The Forest》）中建立大廳時會當機的問題

Steam Controller 韌體

• 修正將在充電傳輸盤上的控制器關閉時，可能導致控制器重新開機的問題

• 降低搖桿的觸碰靈敏度，以減少過早偵測到觸碰的可能性

我們剛推出了針對預覽 / 測試頻道的 Steam 用戶端更新。

一般

• 修正 Steam 視窗會短暫閃爍黑幕的各種情況

Steam 成就組合

• 現在依成就完成度來排序時，收藏庫會顯示已完成的成就組合

• 修正成就總數並未計入部分未解鎖成就的問題

• 修正成就頁面上的稀有度門檻

• 開始遊戲列中的成就按鈕現在會開啟成就面板

Steam Controller 韌體

• 降低搖桿的觸碰靈敏度，以減少過早偵測到觸碰的可能性

我們剛推出了針對預覽 / 測試頻道的 Steam 用戶端更新。

一般

• 修正當多位好友前後在 10 秒內開始遊戲時，「好友加入遊戲」通知會漏發的問題

• 修正會造成「好友上線時」和「好友加入遊戲時」通知的音效不遵照「顯示快顯通知」和「顯示快顯通知時也播放音效」的設定的程式問題

• 現在個別好友通知的設定會在所有情況下正確覆寫全域通知設定

• 改善快捷選單的反應速度

• 修正會造成個別好友通知設定被忽略的程式錯誤

桌面模式

• 重新設計 Steam 更新程式的使用者介面