Updated 03/29/18: iOS 11.3 is now released for iPhone, iPad, and HomePod, along with tvOS 11.3 on Apple TV and WatchOS 4.3 for Apple Watch.
iOS 11.3 has been released. First previewed by Apple in January, the release has gone through six beta releases, over which many of the features have appeared and disappeared. It is available for iPhone, iPad, and HomePod, and is accompanied by updates for Apple’s other devices: tvOS 11.3 for Apple TV and WatchOS 4.3 for Apple Watch.
Notably absent from this release is AirPlay 2, which will surely disappoint all the HomePod early adopters. Also missing is Messages in iCloud, first promised for iOS 11 back at WWDC in June 2017. The feature was available in the latest beta, but has been removed from the final 11.3 release.
Here’s everything you need to know about what’s in iOS 11.3.
What’s in iOS 11.3?
Battery and Performance (beta)
As promised, Apple has brought much-needed power management to the battery settings in iOS 11.3. Users can see their overall battery health, and your phone will recommend if it needs to be serviced. You will also be told if your battery is triggering a chip slowdown, and you can choose to turn that feature off. The switch will only be available for iPhone 6, iPhone 6 Plus, iPhone SE, iPhone 6s, iPhone 6s Plus, iPhone 7 and iPhone 7 Plus.
Head to Settings > Battery > Battery Health (Beta) and you will see the peak capacity (relative to a brand-new battery) and whether or not your phone is capable of sustaining peak performance. If your older iPhone is subject to slowing down because the battery can no longer deliver the necessary peak voltage for full performance, this is where you would see it. This is also where you would disable such throttling.
Apple is also raising its AR game with ARKit 1.5, bringing “even more immersive AR experiences that better integrate with the world and giving them the tools to power a new generation of AR apps.” The new ARKit will be able to recognize and place virtual objects on vertical surfaces such as walls and doors, as well as map non-square surfaces such as circular tables. The real-time video view on your screen gets a big boost in resolution, too.
Tim Cook has been a huge proponent of AR, and told the Financial Post that “AR is the most profound technology of the future. It amplifies human performance. It amplifies humans, not substitutes, and doesn’t isolate. I’m a huge believer in it.”
iPhone X users will also get four new Animoji to play with: a lion, bear, dragon, and skull.
iOS 11.3 (and macOS 10.13.4) ship with Safari 11.1. The new version sports a number of new features, including:
Service Workers. Implement background scripts for offline web applications and faster webpages.
Payment Request. Provide a consistent user payment experience in Safari using a standards-based API.
Security Improvements. Improved protection against memory corruption and code execution attacks.
Web Inspector Updates. New designs for the Network Tab and the Styles sidebar in the Elements Tab.
Users can expect better password autofill (including in apps that use Web View), a better Reader mode, and improved protection against cross-site web tracking.
Business Chat (beta)
Apple has added a new feature to Messages called Business Chat that lets users communicate directly with businesses, including Discover, Hilton, Lowe’s, and Wells Fargo. That way, you can schedule service appointments or make purchases without sharing contact information.
Health Records (beta)
iOS 11.3 features a new Health Records app that aims to streamline patients’ medical data across health-care providers. According to Apple, the passcode-protected app will collect health data from various institutions and organize them into a single view, including notifications for lab results, medications, and conditions. A limited number of health providers support this feature right now (as it is in beta), but the list will surely grow over time.
Videos in Music and News
Among the other additions in iOS 11.3 are music videos inside Apple Music and news video clips inside Apple News. Apple added thousands of music videos to Apple Music along with a bunch of curated playlists; you can find them in Apple Music by heading to the Browse tab, and then selecting Music Videos.
HomeKit and AML
Apple is highlighting HomeKit software authentication (a feature it first talked about last year), which removes a big barrier for smart home gadget makers. They used to have to include a special secure authentication chip in their products to support HomeKit, but no longer.
Apple will also support Advanced Mobile Location (AML). This is a feature used primarily across Europe that will automatically turn on location services and text your location to emergency responders when you call emergency services. It has been supported on Android since 2016 and already has some high-profile success stories, so it’s good to see Apple jumping on board.
Lots of little things
iOS 11.3 is full of small improvements, too. There’s better power management for iPads that are constantly hooked up to a power supply (like those in kiosks), a few tweaks to the App Store, and improved Japanese and Chinese keyboards, just to name a few.
And of course, you’ll find a lot of bug fixes in this release.
How can I get it?
You’ll receive a notification that iOS 11.3 is ready for you sometime over the coming days. But if you want to grab it as soon as possible, simply open Settings and head to General and then Software Update.
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I have written professionally about technology for my entire adult professional life - over 20 years. I like to figure out how complicated technology works and explain it in a way anyone can understand.