Launch pillar · pre-announcement · coverage planned
macOS 27
What we know about macOS 27 — the WWDC 2026 reveal, the likely compatible Macs, and whether the beta is worth installing.
macOS 27 is Apple's expected 2026 Mac operating system. Apple typically reveals the next macOS at its June WWDC keynote, ships a developer beta the same day, and releases the finished version in the fall. We'll update this pillar with confirmed specs, supported Macs, and beta dates once Apple publishes the developer roadmap.
macOS 27 has not been announced yet.
Apple is expected to reveal macOS 27 at the WWDC 2026 keynote (reported for June 8, 2026). Until the keynote, everything on this page is either historical pattern (annual release cadence, prior beta timelines) or credible leak — not confirmed reporting. Do not act on rumors, and do not install a beta on your only Mac. We'll switch this pillar to confirmed coverage the day Apple publishes the developer roadmap.
Bookmark and check back after WWDC 2026 →In short.
Pre-announcement coverage. Apple has not yet revealed macOS 27. This page tracks credible leaks and historical patterns (annual macOS release cadence, prior beta timelines) and will switch to confirmed reporting after WWDC 2026.
Beta install decisions, Mac compatibility, and the Intel cutoff all matter — but only after Apple ships an actual beta. macOS Tahoe 26 is the current shipping release and the last version to support Intel Macs, so the Apple silicon cutoff is the headline question for macOS 27.
Don't act on rumors. Bookmark this page and we'll update it with confirmed info after the June 8 keynote.
Should you install the beta?
No verdict available yet — macOS 27 has not been announced.
- All Macs … Wait macOS 27 has not been announced. Check back after WWDC 2026 for the confirmed developer beta and the supported-Mac list. Never install a macOS beta on a Mac you depend on daily.
Expected timeline
What we anticipate based on Apple's historical macOS release cadence. All dates are estimates unless marked confirmed.
- Pre-WWDC leaks Late May 2026 patch Industry leaks typically intensify in the 2-3 weeks before WWDC. Track Mark Gurman (Bloomberg) and 9to5Mac for credible sourcing.
- WWDC keynote June 8, 2026 major Apple historically announces the next macOS at WWDC's opening keynote. The supported-Mac list publishes that day. Reporting puts the 2026 keynote on June 8.
- Developer beta 1 (expected) Same day feature Developer beta typically seeds immediately after the keynote. Public beta historically follows in July.
- Stable release (expected) Fall 2026 (expected) current Apple has shipped a new macOS each fall for over a decade. macOS 27.0 stable is the expected target.
Supported Macs
The supported-Mac list publishes at WWDC. macOS Tahoe 26 was the last release to support Intel, so macOS 27 is widely expected to be Apple silicon only.
| Mac type | macOS 27 beta | Apple Intelligence |
|---|---|---|
| All Macs | TBD | TBD |
Quick answers
The questions about macOS 27 we get asked most.
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When will macOS 27 be announced?
Apple's standard cadence is a WWDC keynote in June. Reporting puts the WWDC 2026 keynote on June 8, where macOS 27 is widely expected to debut, with a developer beta the same day.
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Will macOS 27 run on my Mac?
The supported-Mac list publishes at WWDC. macOS Tahoe 26 was the last version to support Intel Macs, so macOS 27 is expected to require Apple silicon (M1 or later). The exact cutoff is unconfirmed until the keynote.
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Should I install the macOS 27 beta when it ships?
Wait for the public beta or a later developer beta, and only on a secondary Mac. Early macOS betas historically have the most app-compatibility and battery regressions. Never run a beta on your only machine.