Valve is phasing out 32-bit Windows support for Steam, with the client shifting entirely to 64-bit on compatible PCs and updates ending for 32-bit systems on 1 January 2026. While the change affects only a tiny minority of users, those who don't upgrade their OS, or are stuck on legacy 32-bit hardware, will lose access to client updates, security patches, customer support, and reliable compatibility with new games.
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