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Release record

macOS 12.1

Source-linked record
Public release
Recorded milestones
1
Beta cycle
—
Average interval
—
Public release
Dec 13, 2021

Chronology evidence

Version sources

These sources support version-level chronology or metadata. A researched version overview has not been added.

  1. About the security content of macOS Monterey 12.1

    Apple Support · 2026-08-17 · About the security content of macOS Monterey 12.1

  2. Apple security releases

    Apple Support · Apple · 2026-07-27T00:00:00.000Z · macOS 12.1; released December 13, 2021

Milestones

Release history

Every recorded channel appearance in chronological order. Open an appearance for any available build, scope, notes, and sources.

Historical context

Cycle comparison

Pace, intervals, and duration compared with earlier releases on the same platform.

Historical avg for .1 releases

67 days, 7.5 milestones

Based on 2 previous macOS .1 releases

Previous .1 releases (macOS)

Previous comparable macOS releases
VersionYearCycleMilestonesAvg. Interval
macOS 26.1202542d68d
macOS 15.1202491d911d

Scroll horizontally to compare every historical field.