Apple unveiled iOS 27 at its WWDC 2026 keynote on June 8, 2026, and the headline is a complete rebuild of Siri rather than a long list of small tweaks. The developer beta is already out, a public beta lands in July 2026, and the free final release is expected in September 2026 for every iPhone going back to the iPhone 11. If Siri stops responding during the beta, our guide on why Siri is not working covers the common fixes.
This is the tracker you can bookmark for the whole iOS 27 cycle. We cover the iOS 27 release date and beta timeline, the biggest new features including the rebuilt Siri AI and the new on-device Core AI framework, the full list of supported devices, the long-running “Snow Leopard” rumor and whether it panned out, and the question half of you are really asking, which is whether your older iPhone still gets the update.
The Key Takeaways
- iOS 27 was announced June 8, 2026 at WWDC; developer beta is live, public beta arrives in July 2026, final release expected September 2026 (rumored September 14).
- Supported devices: iPhone 11 and later, plus iPhone SE 2nd generation and newer, roughly 29 models, the same lineup as iOS 26.
- The headline feature is Siri AI, a far smarter assistant with on-screen awareness, personal context, web answers, and a dedicated app that syncs history via iCloud.
- Real performance wins: apps launch up to 30% faster, photos load up to 70% faster, and AirDrop is up to 80% faster.
- AI features are tiered by hardware; Apple Intelligence needs iPhone 15 Pro or iPhone 16 and later, and the newest Siri voices need iPhone 17 Pro or iPhone Air.
When Is iOS 27 Coming Out?
iOS 27 was revealed during the WWDC 2026 keynote on June 8, 2026, and Apple released the first developer beta the same day, as detailed in Apple’s newsroom announcement. A public beta is scheduled for July 2026 through Apple’s Beta Software Program, and the final version ships as a free update in fall 2026. Based on Apple’s recent pattern, the most likely public launch date is Monday, September 14, 2026, alongside the next iPhone lineup. The Mac gets its own release the same season, macOS 27 Golden Gate.
If you have been searching when is iOS 27 coming out, the short answer is this. The software is finished enough to test now, stable enough for most people in July, and ready for everyone in September.
| Stage | Date | Who it is for |
|---|---|---|
| Announcement | June 8, 2026 | Everyone (WWDC keynote) |
| Developer beta | June 8, 2026 | Registered developers |
| Public beta | July 2026 | Beta Software Program members |
| Final release | September 2026 (rumored Sept 14) | All supported iPhones, free |
The big asterisk is Siri AI. The rebuilt assistant rolls out as a beta later in 2026, starting with English-language devices, so the most talked-about feature will arrive after the main iOS 27 release for most users. You can see the full event breakdown in our WWDC 2026 recap.
iOS 27 New Features
iOS 27 is built around three pillars, a smarter Siri, genuine performance gains, and quality upgrades across the core apps. Apple leaned harder into measurable speed improvements this year than it has in a while, which fits the long-running rumor we cover further down.
Siri AI and Apple Intelligence
The rebuilt Siri AI can answer questions about whatever is on your screen, pull personal context from your messages, emails, and photos, and reach the web for current answers. It writes, edits, and proofreads text, suggests one-tap replies in Messages, and lives in a new dedicated Siri app that stores your conversation history and syncs it across devices through iCloud. The wider Apple Intelligence set adds Spatial Reframing in Photos to fix composition after the fact, photorealistic styles in Image Playground, and a “Notify Me” tool in Safari that watches a page for restocks or price drops. Mac users who want more than Apple’s built-in AI can see our guide to Apple Intelligence alternatives for Mac. To bundle Siri commands into one-tap automations, our guide on how to use Siri Shortcuts walks through the new AI Shortcuts too.
Performance and stability
The numbers Apple quoted are concrete. Apps launch up to 30% faster, photos load up to 70% faster right after you take them, and AirDrop transfers are up to 80% faster. File transfers between an iPad and an external drive are up to 5x faster, and the system handles cellular-to-Wi-Fi handoffs more smoothly. These are the kind of under-the-hood wins that older iPhones benefit from even without the AI features.
Everyday app upgrades
Mail gets redesigned search and a Top Hits ranking system, Messages gains context-aware reply suggestions, and iCloud Shared Albums now work cross-platform at full resolution. Parental controls expand with a setup assistant, an “Ask to Browse” permission system, and finer time limits across categories. The Health app adds perimenopause and menopause support in Cycle Tracking, and AirPods pick up custom EQ personalization.
iOS 27 Supported Devices
The iOS 27 supported devices list is identical to iOS 26, which is good news for anyone on older hardware. iOS 27 runs on iPhone 11 and later, plus iPhone SE 2nd generation and newer, covering roughly 29 models in total, according to 9to5Mac’s compatibility list. If your iPhone runs iOS 26 today, it will update to iOS 27 when the final version ships.
The phones that miss out are the iPhone XS, iPhone XS Max, iPhone XR, and anything older, along with the original iPhone SE. Here is the full compatibility picture and, just as important, which features each tier actually unlocks.
| Capability | iPhone 11–15 (non-Pro), SE 2/3 | iPhone 15 Pro / Pro Max | iPhone 16 series | iPhone 17 Pro / Pro Max / Air |
|---|---|---|---|---|
| Install iOS 27 | Yes | Yes | Yes | Yes |
| Core performance gains | Yes | Yes | Yes | Yes |
| Apple Intelligence | 아니요 | Yes | Yes | Yes |
| Full Siri AI personal context | 아니요 | Yes | Yes | Yes |
| Newest Siri voices | 아니요 | 아니요 | 아니요 | Yes |
So will iPhone 11 get iOS 27? Yes, the iPhone 11, 11 Pro, and 11 Pro Max all run it. They get the performance and app upgrades but not Apple Intelligence, which needs at least an iPhone 15 Pro or any iPhone 16. For a deeper breakdown of the AI hardware split, see our guide to which devices support Apple Intelligence.
The “Snow Leopard” Rumor: Did iOS 27 Deliver?
For months before launch, leakers and outlets like MacRumors and AppleInsider described iOS 27 as Apple’s “Snow Leopard” update, a reference to Mac OS X 10.6 Snow Leopard from 2009 that famously shipped “zero new features” and focused entirely on speed, stability, and bug fixes. The iOS 27 Snow Leopard analogy set the expectation of a cleanup release rather than a feature parade.
Reality landed somewhere in the middle. Apple clearly did the stability work, and the up to 30%, 70%, and 80% speed figures are the proof. At the same time, this was not a quiet year, because the Siri AI overhaul is one of the most significant assistant changes Apple has ever made. Call it Snow Leopard with a brain, the performance discipline of 2009 paired with the biggest AI push in the company’s history.
Core AI and Siri AI: iOS 27’s Biggest Change
The phrase iOS 27 Core AI refers to a real new framework, not marketing. Core AI is a lower-level system that runs on-device models and powers Siri under the hood, and it ships with a curated set of optimized open-source models including Qwen, Mistral, and SAM3, plus tools to convert PyTorch models to Apple Silicon. Sitting above it, the next generation of Apple Foundation Models drives the new Siri AI experience.
There was real controversy here. Reports claimed Siri was secretly “Gemini-powered,” and Apple pushed back, saying its Foundation Models were developed in-house, with Google’s Gemini used during distillation and training while the final system was completed on Apple’s own code and data. The more interesting detail for AI fans is that third-party chatbots like Claude and Gemini will be available as Extensions inside Siri, letting you route a question to your preferred model. We cover that shift in detail in is Siri AI and in our explainer on what Apple Intelligence is.
That multi-model direction is exactly what apps like Fello AI already do on the Mac. Instead of being locked to one assistant, Fello AI lets you switch between Claude, ChatGPT, Gemini, Grok, and DeepSeek under a single subscription, so you are never stuck with whichever model your phone defaults to. If iOS 27 has you thinking about which AI actually answers best, trying several side by side is the fastest way to find out.
How to Get the iOS 27 Beta
If you do not want to wait for the September release, the iOS 27 beta is the way in. The public beta is free, but always back up your iPhone first, since beta software is often unstable.
- Back up your iPhone to iCloud or a computer.
- Open Settings, tap your name, and make sure you are signed in with your Apple Account.
- Go to Settings > General > Software Update, then tap Beta Updates.
- Choose the iOS 27 Public Beta (available from July 2026); developers can pick the Developer Beta now.
- Return to Software Update, then download and install iOS 27.
To use Apple Intelligence once you are on iOS 27, you may also need to enable it manually, which we walk through in how to turn on Apple Intelligence.
Conclusion
iOS 27 is the rare update that delivers on both fronts, real speed and stability gains for older iPhones and a fully rebuilt Siri for newer ones. If you own an iPhone 11 through iPhone 15 non-Pro, expect a faster, smoother phone in September. If you have an iPhone 15 Pro, iPhone 16, or iPhone 17 Pro, you also get the full Apple Intelligence and Siri AI experience, including the option to plug in Claude or Gemini.
The smart move is to wait for the public beta in July if you like testing, or the stable September release if you would rather not deal with bugs. Either way, keep this page handy as the iOS 27 rollout continues.
FAQ
When is iOS 27 coming out?
iOS 27 was announced at WWDC on June 8, 2026. The developer beta is out now, the public beta arrives in July 2026, and the free final release is expected in September 2026, with September 14 the most likely date.
Will iPhone 11 get iOS 27?
Yes. iOS 27 supports iPhone 11 and later, plus iPhone SE 2nd generation and newer. The iPhone 11 gets the performance and app upgrades but not Apple Intelligence, which requires an iPhone 15 Pro or iPhone 16 and later.
Which iPhones support iOS 27?
Every iPhone from the iPhone 11 onward, roughly 29 models including the full iPhone 12, 13, 14, 15, 16, and 17 lines and iPhone SE 2nd and 3rd generation. The iPhone XS, XS Max, and XR are not supported.
What is Core AI in iOS 27?
Core AI is a new on-device framework in iOS 27 that runs optimized models, including open-source ones like Qwen and Mistral, and powers the rebuilt Siri. It sits beneath Apple Foundation Models, which drive the Siri AI experience.
Is iOS 27 the “Snow Leopard” update?
Partly. iOS 27 delivers the stability and speed focus that the Snow Leopard rumor predicted, with apps up to 30% faster, but it also ships the largest Siri overhaul in years, so it is not a features-free release.
How do I install the iOS 27 beta?
Back up your iPhone, open Settings > General > Software Update > Beta Updates, choose the iOS 27 Public Beta from July 2026, then download and install it.
