Steam Client to Stop Supporting macOS 11 Big Sur on October 15 Due to Chromium Compatibility Limitation
ByAinvest
Monday, Aug 4, 2025 8:18 pm ET1min read
AAPL--
Steam will stop supporting macOS 11 Big Sur on October 15 due to a Chromium compatibility limitation. The change is required as Steam relies on an embedded version of Google Chrome, which no longer functions on older macOS versions. Valve encourages users to update their Macs to a newer version than macOS 11 Big Sur, as Apple ended security updates and technical support for macOS 11 in 2023.

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