Valve has begun the final phase of its plan to end Steam support for 32-bit versions of Windows, with a December Steam client update that changes how the platform runs on modern systems. As of this week, the Steam client on Windows 10 64-bit and Windows 11 is now itself a 64-bit application, while users on 32-bit Windows are left on a shrinking compatibility branch that will stop receiving updates on January 1, 2026.
This follows an announcement by Valve in September stating that Steam would no longer…