Find the macOS version and build number on your Mac - Apple Support

Find the macOS version and build number on your Mac - Apple Support

How to Check Your macOS Version

To find your system information, follow these steps:

  1. Click the Apple menu in the top-left corner of your screen.

  2. Select About This Mac.

  3. A window will appear displaying the macOS name (e.g., macOS Tahoe) and the version number.


    image-20260326-134935.png


    Tip: If you need the specific build number, click the version number text.


Latest macOS Versions (as of March 2026)

The guide lists the most recent updates for various macOS releases. If your Mac is compatible, you can download and install these versions:

macOS Name

Latest Version

macOS Tahoe

26.4

macOS Sequoia

15.7.5

macOS Sonoma

14.8.5

macOS Ventura

13.7.8

macOS Monterey

12.7.6


Compatibility & Updates

The page includes specific resources to help you determine if your hardware supports the latest software. You can check compatibility for:

Note: The document covers versions dating all the way back to Mac OS X Cheetah (10.0.4) for historical reference or older hardware support.

Contact the ITS Help Desk in the Library Room 230 or at (203) 254-4069 for assistance.