Security News > 2021 > April > Apple's macOS 11.3 fixes a zero-day exploit and includes M1 improvements
The latest update to Apple's Big Sur includes critical security patches, which is why Cory Bohon advises upgrading your macOS devices now.
Apple released macOS 11.3 on April 26, 2021 to the public.
This update includes a serious security update that fixes a zero-day exploit related to the File Quarantine and GateKeeper system in macOS. The security update is backwards compatible with macOS Catalina and macOS Mojave for users still on those OSes.
Beyond the security updates, macOS 11.3 has changes for M1 Macs, including the ability for iPhone and iPad apps running on M1 Macs to be resized.
The macOS 11.3 update also adds features available to users in iOS 14.5, which was released the same day.
For those who game on their macOS devices, Apple added support for Xbox Series X/S and PlayStation 5 controllers, complete with haptic/vibration support.
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