Apple’s next major iPhone software update is shaping up to be one of the most quietly consequential releases in years. iOS 27 is not chasing headlines with flashy visual makeovers or an avalanche of new tools. Instead, the update is being engineered from the inside out: cleaner code, fewer bugs, a smarter Siri, and groundbreaking support for Apple’s first-ever foldable iPhone. Whether you are an iPhone 12 owner hoping for a snappier experience or a power user waiting for a genuinely capable AI assistant, iOS 27 has something meaningful in store.

Here is a complete rundown of everything known so far about iOS 27, including its release date, confirmed and rumoured features, supported devices, and what sets this update apart from its predecessors.

iOS 27 Release Date: When Will It Drop?

Apple follows a predictable annual rhythm with its iPhone software, and iOS 27 is expected to stay right on schedule.

iOS 27 will be unveiled at WWDC in June 2026, with the first developer beta available that same day. A public beta is expected in July 2026, allowing iPhone users to try new features and give feedback to Apple. If all goes according to plan, iOS 27 will then be released to the general public in September.

More specifically, Monday, September 14 is the most likely release date based on past history. Apple typically announces the exact release date at its September iPhone event, with the software dropping one to two weeks later, often the day before new iPhones go on sale.

Here is the full expected timeline at a glance:

June 8, 2026 — iOS 27 officially unveiled at the WWDC keynote. Developer Beta 1 drops the same afternoon.

• Mid-July 2026 — Public Beta opens to anyone with a free Apple ID.
• Early September 2026 — Apple’s iPhone 18 event. Exact iOS 27 release date confirmed.
• Mid-September 2026 — iOS 27 public release alongside the iPhone 18 lineup and iPhone Fold.

It is worth noting that Developer Beta 1 is notoriously buggy, with apps crashing and battery draining fast. If you have a secondary device, go for it. Otherwise, wait for the Public Beta in July.

The Big Picture: What Kind of Update Is iOS 27?

To understand iOS 27, you first need to understand the context it sits in. iOS 18 brought Apple Intelligence. iOS 26 brought the sweeping Liquid Glass redesign, the most dramatic visual overhaul in years. Both were ambitious, feature-heavy updates that also shipped with their share of bugs, instability complaints, and performance issues.

iOS 27 is a deliberate course correction.

Bloomberg reports that Apple’s primary focus with iOS 27 will be on “quality and underlying performance.” Apple engineers are “combing through Apple’s operating systems” looking for bloat to cut and bugs to fix, along with “any opportunity to meaningfully boost performance and overall quality.” The idea is to take a step back after the last several significant iOS updates and lay the groundwork for a new wave of major updates going forward.

This approach has a famous precedent. According to Mark Gurman’s Power On newsletter, Apple is taking a “Snow Leopard-style” approach, meaning no major redesigns and no long list of new tools. Instead, the goal is to improve system quality, fix long-standing bugs, and strengthen the AI foundation for future devices.

For many users, this is exactly what they have been asking for. iOS 26 received widespread criticism for battery drain, overheating on some devices, and visual quirks introduced by the Liquid Glass design. iOS 27 is Apple’s answer to those complaints.

iOS 27 Features: What Is Coming to Your iPhone

While performance and stability are the backbone of iOS 27, the update is far from empty on new functionality. Several significant features are in the pipeline, ranging from a rebuilt Siri to expanded satellite connectivity and deep iPhone Fold integration.

1. A Completely Rebuilt Siri with Chatbot Capabilities

This is the feature most people are watching. Apple is planning to roll out a full chatbot version of Siri that will compete with Claude, OpenAI, and Gemini. After years of delayed promises and incremental improvements, iOS 27 appears to finally be the release where Apple’s AI assistant becomes genuinely competitive.

The Siri redesign in iOS 27 is the most substantive overhaul of the assistant in years. Apple is building a new animated visual identity for Siri, described by Bloomberg as a “visual personality to make it feel lifelike,” with tested designs resembling an animated Finder logo or Memoji. The functional upgrades are equally significant. Siri in iOS 27 will remember past conversations, handle multi-turn follow-up questions, and deliver proactive suggestions based on your calendar and habits.

The new Siri is also expected to be capable of searching the web intelligently, generating content, helping with coding tasks, uploading and analysing files, and performing sequences of actions across multiple apps without the user having to switch between them manually.

Powering much of this is a significant behind-the-scenes partnership. Apple recently finalised its deal with Google to use Gemini models to power new Siri and Apple Intelligence features. According to a report from The Information, Apple is set to use Gemini models to power several iOS 27 features, including proactive features that could suggest a user leaves home to avoid traffic ahead of an airport pickup listed on their Apple calendar.

Importantly, Apple has also been developing an internal AI chatbot testbed. Apple is internally testing a standalone text-based AI chatbot app called Veritas, described as a testbed for the “re-architected Siri.” Apple has no current plans to release Veritas publicly, but its development signals the depth of Apple’s Siri restructuring effort.

2. iPhone Fold Support and Multitasking

iOS 27 is being co-developed alongside Apple’s first foldable iPhone, which is widely expected to launch in September 2026 alongside the iPhone 18 lineup. The two products are deeply intertwined.

The iPhone Fold will feature a 5.5-inch display when folded and a 7.8-inch display when opened up like a book. When unfolded, the iPhone will have an iPad-like layout that supports multitasking with two apps side-by-side. Many of Apple’s iPhone apps will have sidebars on the left of the display, with Apple providing developers with tools to easily adapt their apps to the new layout.

This is genuinely new ground for the iPhone. Split-screen multitasking has never existed on an iPhone before, and iOS 27 is being built specifically to make it work. The iPhone Fold will operate like a cross between an iPhone and an iPad, but it will run iOS rather than iPadOS, and it will not support iPad apps.

One important caveat: Apple almost certainly will not show any of these foldable features at WWDC in June. The iPhone Fold has not been announced yet, and Apple would not tip its hand four months early. Expect the full iPhone Fold software experience to debut at the September event when the device itself is revealed.

3. Liquid Glass 2.0 Design Refinements

iOS 27 will not abandon the Liquid Glass design language introduced in iOS 26, but it will refine it significantly. The Liquid Glass design language divided Apple users right down the middle last year. Some loved the translucent, depth-rich aesthetic. Others found it distracting, hard to read, or just unnecessary. Tab bars disappeared on scroll. Playback controls in Music and Podcasts hid behind glass layers. The design looked beautiful in screenshots but sometimes got in the way of actually using the phone. iOS 27 will not abandon Liquid Glass but it is going to refine it.

Apple started working on a Liquid Glass slider during the iOS 26 cycle but ran into engineering challenges. The slider would reportedly let users “finely control the level of the glass effect.” Whether Apple successfully conquers those challenges in iOS 27 remains to be seen, but it is something in the works. If it ships, this would give users a direct way to dial back the visual intensity of Liquid Glass without turning it off entirely.

4. A Revamped Calendar App with AI Integration

The Calendar app is in for its biggest overhaul in years. Apple is rebuilding the Calendar app as a cross-platform release targeting iOS 27 and macOS 27. Bloomberg confirmed this project was originally planned for 2025 but was delayed to ship with the correct feature set. The depth of the rebuild suggests tighter integration with Siri’s proactive suggestion engine and Apple Intelligence scheduling features.

Among the most talked-about improvements are greater integration between Calendar and Reminders, with automatic event creation from tasks, combined views, and greater flexibility to manage personal and professional appointments from one place.

This is the kind of feature that sounds mundane but has the potential to save users real time every day. A Calendar app that understands your habits, learns from your schedule, and proactively suggests actions before you have to ask is a meaningful upgrade for anyone who manages a busy life through their iPhone.

5. Expanded Satellite Connectivity

Apple introduced emergency SOS via satellite with the iPhone 14, and iOS 27 is expected to expand those capabilities significantly, though some features may be limited to newer hardware.

Additional satellite features have been rumoured, including Apple Maps via satellite and the ability to send and receive photos when using Messages via satellite.

Perhaps most importantly, third-party apps will gain access to satellite APIs for the first time. This opens the door for hiking apps, travel tools, and safety applications to build satellite-based features that work completely off-grid.

The plans involve expanding those services beyond specific emergencies, leveraging Apple’s collaboration with Globalstar. One technical objective is to reduce the dependence on having to “point” the iPhone to the sky so precisely, making the experience feel more natural.

It is worth noting that the timing on some satellite features remains uncertain. Behind-the-scenes updates from Apple’s satellite partner Globalstar are required, and some satellite improvements could roll out as soon as 2027 rather than with iOS 27 at launch.

6. Apple Intelligence and AI-Powered Health Features

AI remains a key area of enhancement in iOS 27. Apple will strengthen Siri’s contextual understanding, system-wide AI integration, and Apple Intelligence capabilities throughout the OS.

On the health front, Apple has scaled back its ambitions slightly. Apple planned a full AI-powered Health+ subscription service, but those plans have been scaled back. Some components that Apple planned to implement could still be introduced in iOS 27, though it is unclear exactly what will ship. Health+ reportedly would have provided health recommendations in the Health app, delivering detailed health reports, videos that explain medical conditions, and wellness tips.

Separately, Apple is continuing its work on an AI-powered web search platform that could ship as part of iOS 27. Internally, this platform is referred to as Apple’s World Knowledge Answers platform, designed to rival AI search features from companies like Perplexity.

7. CoreAI Framework for Developers

Under the hood, iOS 27 is expected to introduce a fundamental shift in how developers build AI-powered apps. Apple is reportedly replacing its CoreML machine learning framework with a new system called CoreAI, designed from the ground up to support large language models and generative AI tasks on Apple Silicon chips.

For everyday users the change is invisible, but its implications are significant. Apps built on CoreAI will be able to run more sophisticated on-device AI features, with better performance and lower battery impact than what CoreML could support.

8. Photos Collections and AirPods Pairing Improvements

Two smaller features have surfaced in leaked code, though both come with caveats. Leaked code from an internal iOS build references improvements to “collections” inside the Photos app, flagged for iOS 27. The same leaked code references a new AirPods pairing mechanism. Like Photos Collections, this feature is flagged as possibly scrapped before launch. One plausible explanation is that the new pairing system is designed to work with unreleased AirPods hardware launching alongside iPhone 18.

Both features are early-stage and should be treated as rumours with genuine uncertainty about whether they will make the final cut.

iOS 27 Supported Devices: Which iPhones Are Compatible?

Apple has not yet released an official compatibility list, but based on the chip requirements for iOS 27’s features and the pattern of past releases, we can make a well-informed prediction.

Apple cut off support for iPhones with the A12 processor with iOS 26, but there is no foreseen reason to eliminate support for devices with an A13, which has 4GB of RAM, for iOS 27.

That means the expected iOS 27 compatibility list looks something like this:

Confirmed to be supported (expected): iPhone 12, iPhone 12 mini, iPhone 12 Pro, iPhone 12 Pro Max (A14 Bionic), iPhone 13 series, iPhone 14 series, iPhone 15 series, iPhone 16 series, iPhone 17 series, iPhone SE (3rd generation), iPhone 18 series (new), iPhone Fold (new).

Likely to be dropped: iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, and iPhone SE (2nd generation), all of which run the A13 chip or A12 chip depending on the model.

Older iPhones such as the iPhone 12 to 14 series will miss Apple Intelligence features including AI-powered Siri, Writing Tools, Image Playground, Genmoji, Smart Reply, and on-device AI processing. All other iOS 27 features like UI improvements, security updates, and new apps will still be available on those devices.

In short: even if your iPhone is several years old, you are likely to benefit from the performance and stability improvements at the core of iOS 27. The most advanced AI features, however, will be reserved for newer hardware.

iOS 27 vs iOS 26: What Is Actually Different?

For users who remember the excitement surrounding iOS 26’s Liquid Glass makeover, iOS 27 can sound underwhelming on paper. But that framing misses the point.

iOS 26 changed what iPhones look like. iOS 27 changes how they feel to use. Faster app launches, fewer crashes, better battery life, a Siri that actually understands what you are asking, and an intelligently rebuilt Calendar are exactly the kinds of improvements that make a daily difference but rarely make headlines.

Think of it this way: iOS 26 was Apple painting the walls. iOS 27 is Apple fixing the plumbing, reinforcing the foundations, and installing a smarter thermostat. It is less photogenic but arguably more valuable.

The iPhone Fold dimension makes this update especially significant. Apple is launching an entirely new product category in the same month iOS 27 ships, and the software has been built in part to make that hardware sing. That is not a minor footnote. It represents one of the most consequential iOS updates in Apple’s history from a product strategy standpoint, even if it does not look that way at first glance.

Should You Install iOS 27?

For most users, yes, and without much hesitation. If Apple delivers on its promises of improved performance, battery life gains, and a meaningfully smarter Siri, iOS 27 will be one of the most welcome updates for people who upgraded to iOS 26 and experienced rough edges.

For early adopters, the developer beta on June 8 will be tempting, but patience pays off here. Wait for the public beta in July for a more stable experience, or hold out for the final release in September if your iPhone is your primary device.

For iPhone 11 users and older devices approaching the end of iOS support, iOS 27 may be the last update you receive. If that applies to you, it is worth considering whether the time has come to upgrade to a newer model in order to access the full range of Apple Intelligence features going forward.

iOS 27 Key Facts at a Glance

Announcement: WWDC 2026, June 8 Developer Beta: June 8, 2026 (same day as keynote) Public Beta: Mid-July 2026 Public Release: Mid-September 2026 (alongside iPhone 18 and iPhone Fold) Most Likely Release Date: September 14, 2026 Update Focus: Performance, stability, AI, iPhone Fold support Key Features: Chatbot Siri, iPhone Fold multitasking, Liquid Glass refinements, rebuilt Calendar, expanded satellite, CoreAI framework Supported Devices: iPhone 12 series and newer (A14 chip and above) Apple Intelligence Devices: iPhone 15 Pro and newer (full feature set)

Final Thoughts: iOS 27 Is the Update iPhone Users Have Been Waiting For

iOS 27 is not trying to be the most exciting update Apple has ever shipped. It is trying to be the most reliable, the most intelligent, and the best prepared for what comes next. After two consecutive years of transformative but imperfect updates, Apple is doing what great software companies periodically must: slowing down to get things right.

The combination of a rebuilt Siri that finally delivers on years of AI promises, a software foundation that is faster and less buggy, and deep integration with the iPhone Fold makes iOS 27 a genuinely pivotal release despite its understated approach.

When it arrives in September 2026, do not measure it by how many new things it adds. Measure it by how much better your iPhone feels to use every single day.

iOS 27 will be officially unveiled at WWDC 2026 on June 8. Follow our live blog for all the news as it breaks.