Version RecordIndependent release archive
Menu

Release appearance

macOS 27.0 Beta 7

Full article
Developer beta

Recorded context

About this appearance

Apple released macOS 27.0 developer beta 7 on August 24, 2026 as build 26A5421a, seven days after beta 6. macOS 27 Public Beta 5 and second release candidates for macOS 26.7 and 15.8 appeared the same day.

Date
Aug 24, 2026
Availability
available
Revision
No

Release notes

What changed

Original editorial synthesis. Linked references appear with the claims they support and in the source ledger.

Apple released macOS 27.0 developer beta 7 on August 24, 2026 as build 26A5421a. The seed followed beta 6 by seven days, extending the weekly cadence that began after beta 5.[1]

The current macOS 27 release notes are labeled for beta 7. The same day also produced macOS 27 Public Beta 5 and second candidates for macOS Tahoe 26.7 and macOS Sequoia 15.8, placing three Mac release tracks on the ledger without turning any of them into a public macOS release.[2][3][4]

Source ledger

References

Sources are linked to the claims they support. Publication and access dates are shown when available.

  1. Releases - Apple Developer

    Apple Developer · Apple · 2026-07-29 · macOS 27.0 beta 7 (26A5421a); August 24, 2026

    Back to text ↑
  2. macOS 27 Release Notes

    Apple Developer · Apple · 2026-07-29 · Current macOS 27 Beta 7 release notes

    Back to text ↑
  3. Second Release Candidates for macOS Tahoe 26.7 and macOS Sequoia 15.8 now available

    9to5Mac · 2026-08-24T00:00:00Z · macOS 26.7 and 15.8 RC 2 released August 24, 2026

    Back to text ↑
  4. Apple Releases New iOS 27, iPadOS 27, macOS 27, and tvOS 27 Public Betas

    MacRumors · 2026-08-24T00:00:00Z · macOS 27 Public Beta 5 released August 24, 2026

    Back to text ↑
  5. macOS 27 Release Notes

    Apple Developer · Apple · 2026-07-29 · macOS 27 Beta 7 release notes