Release record
Release notes
Editorial synthesis with inline references and a source ledger when citations are available.
macOS 15.1 delivered Sequoia's first Apple Intelligence feature set on supported Apple-silicon Macs, including Writing Tools, a redesigned Siri experience, natural-language Photos search, Clean Up, notification summaries, and Reduce Interruptions. [1]It also added drag-and-drop file transfer to iPhone Mirroring and Hearing Protection support for eligible AirPods Pro 2 configurations.[2]
Administrators gained MDM controls for Writing Tools and Mail summaries, alongside fixes for login delays, upgrades involving incomplete local accounts, content filters, and older VPN products.[3]
Source ledger
Sources are linked to the claims they support. Publication and access dates are shown when available.
Apple Support · 2026-07-29 · macOS Sequoia 15.1 — Apple Intelligence
Apple Support · 2026-07-29 · macOS Sequoia 15.1 — iPhone Mirroring and AirPods
Apple Support · 2026-07-29 · macOS Sequoia 15.1
Documented & observed
Source-linked features, fixes, known issues, removals, and community-observed behavior recorded across this version’s appearances and verified builds.
Release changes
Features, fixes, removals, and regressions first observed in this release record.
feature · introduced
Users could search for media in ordinary language, describe a memory movie, and remove unwanted objects from photos.
Recorded at Public
feature · introduced
Writing Tools became available across compatible applications, offering alternate phrasing, language corrections, and summaries.
Recorded at Public
feature · introduced
Supported Macs could summarize notifications and use Reduce Interruptions to suppress lower-priority alerts.
Recorded at Public
enhancement · changed
Supported Macs received Type to Siri, a responsive visual treatment, better handling of conversational corrections, and Apple product guidance.
Recorded at Public
enhancement · changed
Administrators could manage initial AI features while benefiting from fixes to passcode-policy login, upgrades, content filters, and legacy VPN compatibility.
Recorded at Public
enhancement · changed
The release completed a key Continuity workflow by enabling direct transfer of files, photos, and videos in either direction.
Recorded at Public
Milestones
Every recorded channel appearance in chronological order. Open an appearance for any available build, scope, notes, and sources.
Developer beta
Developer beta
Developer beta
Developer beta
Developer beta
Developer beta
Release candidate
Release candidate
Public release
The public macOS 15.1 release delivered the first Apple Intelligence capabilities on supported Macs and completed file drag and drop for iPhone Mirroring.
Historical context
Pace, intervals, and duration compared with earlier releases on the same platform.
Historical avg for .1 releases
42 days, 6.0 milestones
Based on 1 previous macOS .1 releases
Cycle vs. platform average
91d (avg: 104d)
13 days shorter than the macOS average
Longest gap in this cycle
20 days
Between Beta 3 and Beta 4
| Version | Year | Cycle | Milestones | Avg. Interval |
|---|---|---|---|---|
| macOS 26.1 | 2025 | 42d | 6 | 8d |
Scroll horizontally to compare every historical field.