Not only is it the first release to support the upcoming Steam Machine living room gaming PC, it comes with long-awaited features for Valve’s handhelds and more support for other companies’ handhelds than we’ve seen to date — including Microsoft and Asus’ Xbox Ally series, the Lenovo Legion Go 2, the OneXPlayer X1, and additional support for MSI, GPD, Anbernic, OrangePi, and Zotac.

The one that excites me most: Valve is adding genuine hibernation and “memory power down” modes to the Steam Deck — though just the LCD model to start — which should help extend battery life when you hit the power button or leave them idle. Some Windows machines currently last longer than the Steam Deck when asleep, because they self-hibernate to save power, while the Steam Deck has an instant-on sleep mode.

Plus, Valve has finally added a setting in its gaming mode to let you use your Bluetooth headset microphones — something I’ve been asking for since the beginning. (Valve did add it to the Linux desktop mode last year.) And the Steam Deck LCD is finally getting Bluetooth Wake re-enabled, so you can turn on your TV-connected Deck with a wireless controller from your couch.

The update comes with all sorts of improvements for the Linux desktop modes that sound like they’ll come in handy on a Steam Machine plugged into a TV or monitor, too, including desktop HDR, VRR display support, per-display scaling, “improved windowing behavior for games running in Proton,” and an upgrade to KDE Plasma 6.4.3 among other things.

And for a Steam Machine or Steam handheld plugged into a home entertainment system, they can now detect how many audio channels you have over HDMI to enable surround sound. (I believe surround sound was already a thing, so perhaps this is just a different and better automatic implementation.)

There’s also a new Arch system base and an updated graphics driver.

Perhaps most surprisingly, the “Non-Deck” section of the changelog is huge. Valve says long-pressing your power button should work “across a wide variety of devices” to power off, restart, or switch to the desktop mode. You should be able to change your processor’s power modes on the Xbox Ally now, and night mode and screen color settings should work on AMD Z2 Extreme handhelds in general.

There’s also “Greatly improved video memory management with discrete GPU platforms,” you can limit how far the battery charges in any of the Lenovo Legion Go handhelds (in desktop mode), and it should fix “washed out colors for Zotac and OneXPlayer handhelds with OLED.”

There’s a lot in this update, and it’s possible I missed a feature you care about, so check out the whole changelog here and below.