Every year, Apple updates the Mac operating system. The current version of macOS is macOS 15.5, but development of macOS 26 (not macOS 16) is well underway.
Apple runs a beta program, which means developers and registered public testers can try out new features before they are released to the general public later in the year.
The beta process doesn’t stop with the full release of macOS in the fall. After macOS 15 Sequoia arrived on Macs in September 2024, development continued with new features rolled out every couple of months. The same will be true of the macOS 26 development cycle.
Read more at Macworld.com