Public release
Public
Source-linked recordSources linked
- Availability
- available
- Sources
- 2 linked
Release record
macOS 10.15.5
Source-linked record
Public release
- Recorded milestones
- 1
- Beta cycle
- —
- Average interval
- —
- Public release
- May 26, 2020
Chronology evidence
Version sources
These sources support version-level chronology or metadata. A researched version overview has not been added.
- About the security content of macOS Catalina 10.15.5, Security Update 2020-003 Mojave, Security Update 2020-003 High Sierra
Apple Support · 2026-08-17 · About the security content of macOS Catalina 10.15.5, Security Update 2020-003 Mojave, Security Update 2020-003 High Sierra
- Apple security releases
Apple Support · Apple · 2026-07-27T00:00:00.000Z · macOS 10.15.5; released May 26, 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.