What's new for iOS 27

Apple published its iOS 27 preview this summer. The software is due this fall. I build small iPhone apps, so I read these pages with a practical question: what will actually change how a day on iPhone feels?

The short version is that iOS 27 is not only a new Siri. It is also faster launches, simpler parental controls, and a few tools that try to take friction out of photos, Safari, and passwords.

Siri AI is the headline

Apple is replacing the old Siri with Siri AI, powered by Apple Intelligence. You can talk or type in a back-and-forth conversation, ask open-ended questions, and pick up a thread later in a dedicated Siri app — even on another device.

What matters for real use is the personal context. Apple says Siri AI can find a photo from years ago, an email buried in Mail, or a note you saved, then take action in apps like Messages, Music, and Reminders. That is the difference between a chatbot and something that lives on your phone.

Two caveats from Apple’s own page. Siri AI is coming in English later this year, not necessarily on day one. It starts in beta, needs an Apple Intelligence–capable iPhone, and will not initially be available in the EU on iOS.

There is also a Siri mode in Camera. Point the viewfinder at something around you and ask — Visual Intelligence can identify what you are looking at and help you act on it, from a meal’s nutrition facts to a pass you want in Wallet.

Voice customization (expressivity and pace) is limited to newer hardware: iPhone 17 Pro, 17 Pro Max, and iPhone Air, among other Apple devices with enough memory.

Photos, writing, and the rest of Apple Intelligence

Photo editing is the other AI piece I would actually open. Spatial Reframing lets you reframe a shot after you took it. Extend expands the edges. Clean Up can remove larger objects than before.

Image Playground can now generate higher-quality images in more styles, including photorealistic ones. Messages and Mail can suggest quick actions from a conversation — add an event, save a reminder — and Call Context can surface a confirmation code from Mail while you are on the phone with an airline. Those last two are marked as coming in English.

Safari groups tabs into topics automatically and can watch a page for a price drop or a restock. The Passwords app can flag weak or leaked passwords and update them for you. Shortcuts can be built from a plain-language description, like messaging someone with your ETA when you leave work.

Child safety is a real redesign

If you set up an iPhone for a kid, this is the part that is not marketing fluff.

Setup Assistant lets parents pick which system apps the child can use. Ask to Browse means new websites need approval, and that request can show up in Messages. Communication Safety now also steps in around gore and violence, not only nudity.

Time Allowances can be set by category — Entertainment, Games, Social Media — with age-based guidance, plus schedules for when apps are available. Parental controls in Settings are redesigned so you can see use at a glance and pause or adjust it in the moment.

The OS itself should feel quicker

Apple is still iterating on Liquid Glass: more even refraction, better contrast, sharper icons, and a slider from ultraclear to fully tinted.

The numbers they published are the ones I care about as someone who opens apps all day. App launches are up to 30% faster. New photos can show up in the library up to 70% faster. AirDrop can be up to 80% faster. The phone is also supposed to jump between Wi-Fi and cellular more smoothly, and Mail search ranks relevant results first.

Around the edges: auto-generated captions that can also translate existing ones, richer VoiceOver image descriptions, better iCloud Shared Albums for people on Android or Windows, perimenopause tracking in Health, sharper Flyover in Maps, Custom EQ for AirPods, smarter HomeKit video search, and GymKit on iPhone so cardio machines can talk to the phone directly.

What I will watch as an indie developer

iOS 27 still runs on iPhone 11 and later, including the iPhone 17 lineup. Apple Intelligence — and with it Siri AI — needs newer devices: iPhone 16 and later, plus iPhone 15 Pro and 15 Pro Max.

That split will show up in support mail. Some people get conversational Siri and on-device photo tools. Others get a faster, cleaner iPhone without the new assistant. Apps should keep working for both.

The rest is quieter, which is usually where small apps live. Faster launches, better search, and a Shortcuts description field are the kinds of platform changes that make a simple tool feel like it belongs on the phone.

I will keep reading Apple’s preview as the public beta moves toward the fall release. The source of truth is still apple.com/os/ios.