is still available if you previously purchased it from Apple → App Store → Purchased tab.
: Fixed unexpected restarts for Xsan clients moving files within relation points .
: It was distributed as a DMG file via the Apple Developer Center and as an over-the-air update through the Mac App Store. Macos Sierra 10 12 6 Beta 5 Dmg Xcode Beta Dmg
: This update focused primarily on security, stability, and bug fixes rather than new features.
Installing a 8-year-old beta OS on modern hardware is impossible. You cannot install Sierra 10.12.6 on a 2023 M2 Mac. Here is how you should use these DMGs today. is still available if you previously purchased it
Released May/June 2017
restarts when moving files on specific file systems, and improved the stability of the Terminal app Distribution : Provided as a DMG (Disk Image) : This update focused primarily on security, stability,
In summary, the 10.12.6 Beta 5 cycle was less about novelty and more about reliability