The change kicks in on October 15th, 2025. “This change is required as core features in Steam rely on an embedded version of Google Chrome, which no longer functions on older versions of macOS,” Valve ...

Steam will stop supporting macOS 11 Big Sur on October 15, 2025, according to Valve, requiring Mac users to upgrade to macOS ...

Valve's Steam client will end support for macOS 11 Big Sur on October 15, 2025. This decision, while a blow to some gamers, ...

Before you install the macOS Big Sur beta, you need to back up your Mac and you should make sure that you create a second backup that you won’t accidentally overwrite.

The Mac is getting a big upgrade with Big Sur (macOS 11) this fall. It’s arguably the biggest change since the original macOS and lays the groundwork for Apple Silicon, an Apple-made chip that ...

Safari’s details on tracking protection are interesting, but not actionable Apple first introduced macOS Big Sur back in June, lauding it with all the usual flowery language. But for now, these ...

In macOS Big Sur, Apple upgraded that Macintosh HD volume to be a signed system volume, which adds “cryptographic protections” to maintain the integrity of the OS.

Gamers with older Macs who want to keep using Steam will need to upgrade to macOS Monterey or later if they can, as Valve is cutting support for macOS Big Sur in October.

If you're a Mac user that's still running macOS 11 Big Sur, be aware: Valve has announced that the Steam Client will stop ...