Apple is set to unveil macOS 27 at WWDC 2026 on June 8, and the early reporting paints a picture very different from Tahoe's bombastic Liquid Glass debut. Expect a "Snow Leopard" year — lighter on new features, heavier on cleanup — with a redesigned Siri as the headline addition.
WWDC 2026: Dates and What to Watch
Apple's developer conference runs Monday, June 8 through Friday, June 12, 2026. The keynote on June 8 is where macOS 27, iOS 27, iPadOS 27, watchOS 27, and visionOS 27 will be introduced. The first developer beta typically ships within hours of the keynote, with a public beta following in July and the final release in September.
Siri: A Real Redesign, Finally
The most-discussed change is a dedicated Siri app with conversation history — positioning Siri much closer to ChatGPT and Gemini than the prompt-and-forget assistant Mac users have lived with for over a decade. The release should also finally deliver the personalized Siri features Apple previewed at WWDC 2024, including the ability to pull context from Mail, Messages, and Calendar to answer questions like "what time is my mom's flight?"
"Snow Leopard" Year
iOS 27 is being described internally as a stability-and-quality release rather than a feature-driven one, and macOS 27 is reported to share that focus. Expect performance improvements, bug fixes, and code cleanup — the kind of release power users have been asking Apple to ship for years.
Apple Silicon Only
As confirmed back in the Tahoe release cycle, macOS 27 will not run on Intel Macs. You will need an M-series Mac, or a MacBook Neo with the A18 Pro chip, to install the update. Tahoe 26 is the last macOS version to support Intel.
Rosetta 2 Phase-Out Begins
Reports also indicate macOS 27 will be the last version of macOS to fully support Rosetta 2, the translation layer that lets Intel-built apps run on Apple Silicon. Developers still shipping x86_64-only binaries should ship a universal or arm64 build before macOS 28.
Hardware Compatibility (Expected)
- All Apple Silicon Macs (M1 and later)
- MacBook Neo (A18 Pro)
- No Intel Macs of any generation
What This Means for You
If you are on an Apple Silicon Mac running Tahoe 26.4.1, you will be eligible for macOS 27 as soon as it ships in September. If you are on an Intel Mac, Tahoe 26 is your final supported release — you will continue to receive security updates for some time, but will not get macOS 27.