Today, September 16, 2024, Apple released its newest version of the Macintosh operating system, macOS 15 Sequoia. This release includes a series of upgrades to macOS, including a new Password app, Continuity improvements, and enhancements to Messages and Safari. This initial release does not include the heavily hyped Apple Intelligence features—those will likely ship with macOS 15.1 sometime in October 2024.

Information Systems & Computing (ISC) strongly recommends that all University users adopt a “wait and see” approach and continue using earlier macOS versions for at least one week following this release. This period allows time for any initial bugs and compatibility issues to be identified and fixed. ISC suggests that administrators of institutionally-owned systems block the upgrade and that users of individually-owned systems ignore Apple’s upgrade prompts. ISC will send an update on Sequoia’s status at the University on September 23.

macOS 15 Sequoia is compatible with most Macs made in 2019 or later, with one notable exception: only 2020 and newer MacBook Airs are compatible. Sequoia is not currently pre-installed on new Macintoshes, but that will change over the next few months.