Apple has officially rolled out the second developer beta of macOS Sequoia 15.5 for Mac users, carrying the internal build number 24F5053f. The release comes 12 days after the previous beta and appears to be a low-key update, with no major new features identified so far.
What’s New in macOS 15.5 Beta 2?
As macOS 16 looms on the horizon, Apple has noticeably slowed the introduction of new features for Sequoia. Beta 2 of macOS 15.5 mainly focuses on system optimization, bug fixes, and under-the-hood improvements to ensure stability across Intel and Apple Silicon Macs.
While this build does not bring any user-facing enhancements, developers are encouraged to test their apps for compatibility and report performance issues as Apple finalizes the current OS cycle.
Related: Apple Releases iOS 18.5 and iPadOS 18.5 Developer Beta 2 – Here’s What’s New
Apple also released the second developer beta of iOS 18.5 and iPadOS 18.5 today, which includes subtle design improvements and customization options in the Mail app. Read the full breakdown.
How to Install macOS Developer or Public Beta Versions
For those looking to try out the latest beta releases, here’s how to access them:
- Public Beta Access: Sign up for the Apple Beta Software Program, then navigate to System Settings > General > Software Update > Beta Updates to enable beta versions on your Mac.
- Developer Beta Access: Developers registered with Apple’s Developer Program can install the beta by logging into their account and enabling developer updates via System Settings > General > Software Update.
Note: It’s recommended to back up your Mac before installing beta software, as pre-release versions can introduce instability.
What This Means for Mac Users
While macOS 15.5 doesn’t introduce headline-worthy changes, it marks the final stretch of Apple’s current macOS development cycle. For users and developers alike, this update is a reminder that a major shift is coming with macOS 16 — expected to bring fresh capabilities and interface improvements across the Mac lineup.
If you’re running a developer machine or simply curious about what’s next, now is a good time to ensure your apps and workflows are prepared for the upcoming evolution of macOS.