Apple has released macOS 26.3.1, a new software update for Mac that focuses on external display support and general bug fixes.
The update arrives alongside iOS 26.3.1 and comes at a busy week for Apple hardware launches.
macOS 26.3.1 adds support for 2026 Studio Display and Studio Display XDR
According to Apple’s release notes, macOS 26.3.1 expands compatibility for external monitors. Specifically, it adds support for:
Here is Apple’s official note:
This update expands external display support to include Studio Display (2026) and Studio Display XDR along with bug fixes for your Mac.
If you are planning to use one of Apple’s newly announced displays, installing macOS 26.3.1 is essential for proper compatibility.
Ships with Apple’s latest Macs
macOS Tahoe 26.3.1 is also expected to ship on all newly introduced Macs this week, including:
All of those devices became available for pre-order today, alongside the new Studio Display models.
While this is not a feature-heavy release, macOS 26.3.1 ensures that Apple’s latest Macs and displays work seamlessly out of the box. If you are upgrading hardware this week, this update is an important one.
