macOS 27.0

Historical avg for major releases

122 days, 11.3 betas

Based on 6 previous macOS .0 releases

9 days since last beta

Gaps this long have happened 91 times

Most recently: macOS 26.6 had a 20-day gap (Beta 1 → Beta 2)

Projected next beta

Jul 31, 2026

Based on 11-day average interval for this version

Projected public release

Oct 8, 2026

Based on 122-day avg cycle for major releases

Pace at day 51

5 betas (avg: 4.0)

Ahead of pace — previous .0 releases averaged 4.0 betas at this point

Longest gap in this cycle

14 days

Between Beta 1 and Beta 2