Valve has been building up to this for months, first in preview, then beta, and now finally in a full stable release: a new version of SteamOS that brings brand new features to the Steam Deck and supports third-party handhelds like Lenovo’s Legion Go and Asus’s ROG Ally series.

Until now, those who wanted to try SteamOS on those Windows handhelds could shoehorn the Steam Deck’s original recovery image onto their device, or opt for a similar experience like Bazzite. But now, Valve explicitly provides instructions for getting that image working on a Legion Go or ROG Ally, even as it warns that “support for all devices that is not officially ‘Powered by SteamOS’ is not final.”

But even if you don’t care about rival handhelds, SteamOS 3.7 has a lot of improvements for the Steam Deck. I’ve been asking Valve to let me use my Bluetooth earbuds’ microphone since launch, and it’s finally happening in desktop mode (sadly not gaming mode yet) thanks to HFP/HSP profiles. You can turn on your Steam Deck LCD from across the room with a Bluetooth controller, a feature previously exclusive to the OLED model, which comes in handy when you’re docked to a TV.

Speaking of leaving it docked, you can now set a Battery Charge Limit to 80 percent for longevity’s sake if your handheld is always plugged in, you can frame-limit variable refresh rate displays, and control the P-state frequency of certain AMD CPUs.

And, an updated SteamOS FAQ seems to suggest that Valve is ready to expand SteamOS beyond Lenovo and the Steam Deck. “We’re currently working with select partners on officially licensed Powered by SteamOS devices. Please reach out to us at [email protected] for more information about licensing SteamOS for your device,“ one answer reads.

But the industry is still waiting for Valve’s other shoe(s) to drop. Rumors are still heating up that we’re close to the launch of Valve’s wireless VR headset “Deckard,” and that it might be pointing the way towards a SteamOS-powered living room console too. Valve has been moving slow and steady, but it seems like a master plan for Steam Machines could finally be coming into focus.