macOS Tahoe 26.5.1
macOS 26.5.1 known issues for MDM admins. Is it safe to deploy?
SupersededDeploy verdict: Superseded
Replaced by macOS 26.5.2 in the same major line. Target the newer build. This build wasn't reviewed separately.
Release facts
| Version | 26.5.1 |
|---|---|
| Build | n/a |
| Release date | Jun 1, 2026 |
| Days since release | 149 |
| Security fixes (CVEs) | 0 |
| Actively exploited CVEs fixed | 0 |
Apple security releases (no CVE entries published for this update) · All Apple security releases · SOFA
Timing and deferral
- Superseded by macOS 26.5.2. Target the newer build unless you have a specific reason not to.
- Deferral windows (calculated from the release date):
- 30-day deferral ends Jul 1, 2026 (passed)
- 60-day deferral ends Jul 31, 2026 (passed)
- 90-day deferral ends Aug 30, 2026 (passed)
- Shipped 21 days after the previous macOS 26 release.
Jamf Pro + Intune notes
Jamf Pro
No product-specific reports collected yet. Know of one? Email us with a link.
Microsoft Intune
No product-specific reports collected yet. Know of one? Email us with a link.