Public release
Public
Source-linked recordSources linked
- Availability
- available
- Sources
- 1 linked
Release record
iOS 14.2.1
Source-linked record
Public release
- Recorded milestones
- 1
- Beta cycle
- —
- Average interval
- —
- Public release
- Nov 19, 2020
Chronology evidence
Version sources
These sources support version-level chronology or metadata. A researched version overview has not been added.
- Apple security releases
Apple Support · Apple · 2026-07-27T00:00:00.000Z · iOS 14.2.1; released November 19, 2020
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 .2.1 releases
68 days, 6.0 milestones
Based on 1 previous iOS .2.1 releases
Previous .2.1 releases (iOS)
| Version | Year | Cycle | Milestones | Avg. Interval |
|---|---|---|---|---|
| iOS 4.2.1 | 2010 | 68d | 6 | 14d |
Scroll horizontally to compare every historical field.