Release appearance

macOS 11.2.1 Public

Source-linked record
Public release

Recorded context

About this appearance

Source-linked record

At least one source is linked to this record. A researched release-notes article has not been added.

Date
Feb 9, 2021
Availability
available
Revision
No

Chronology evidence

Appearance sources

These sources support the recorded date, channel, or availability. A researched release-notes article has not been added.

  1. About the security content of macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update, and macOS Mojave 10.14.6 Security Update 2021-002

    Apple Support · 2026-08-17 · About the security content of macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update, and macOS Mojave 10.14.6 Security Update 2021-002

  2. Apple security releases

    Apple Support · Apple · 2026-07-27T00:00:00.000Z · macOS 11.2.1; released February 9, 2021