Starting January 1, 2026, Valve's Steam client for Windows will exclusively support 64-bit systems, marking the end of updates for the 32-bit version. Users operating on Windows 10 must ensure they are using a 64-bit version to continue receiving updates and features, while those on Windows 11 are unaffected as it only supports 64-bit applications.
This shift follows Valve’s earlier announcement in September, emphasizing the transition to 64-bit due to compatibility issues with system drivers and libraries essential for Steam's core functionalities. Although 32-bit users can still play games on their systems, they will not receive any new features or security updates after the cutoff date.
Valve's recent update on December 19 also includes minor changes, but the central takeaway is the full transition to 64-bit for the Steam client. The company cautions users against relying on the 32-bit client for an optimal experience going forward.