Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.
iOS 11.3 introduces new features including ARKit 1.5 with support for more immersive augmented reality experiences, iPhone Battery Health (Beta), new Animoji for iPhone X users, and more. This update also includes stability improvements and bug fixes.
Augmented Reality
ARKit 1.5 allows developers to place digital objects on vertical surfaces like walls and doors in addition to horizontal surfaces
Adds support for detecting and incorporating images like movie posters or artwork into AR experiences
Supports a higher resolution real world camera view when using AR experiences
iPhone Battery Health (Beta)
Displays information on iPhone maximum battery capacity and peak performance capability
Indicates if the performance management feature that dynamically manages maximum performance to prevent unexpected shutdowns is on and includes the option to disable it
Recommends if a battery needs to be replaced
iPad charge management
Maintains battery health when iPad is connected to power for prolonged periods of time, such as when it is used in kiosks, point of sale systems, or stored in charging carts
Animoji
Introduces four new Animoji on iPhone X: lion, bear, dragon and skull
Privacy
When an Apple feature asks to use your personal information, an icon now appears along with a link to detailed information explaining how your data will be used and protected
Business Chat (Beta) - US only
Communicate with companies to easily ask questions, schedule appointments, and make purchases inside the built-in Messages app on iPhone and iPad
Health Records (Beta) - US only
Access health records and view lab results, immunizations, and more in a consolidated timeline in the Health app
Apple Music
Features a new music video experience, including an updated Music Videos section with exclusive video playlists
Find friends that have similar tastes using updated suggestions in Apple Music that reveal genres people enjoy and mutual friends that follow them
News
Top Stories now always appear first in For You
Watch Top Videos curated by News editors
App Store
Adds ability to sort customer reviews on product pages by Most Helpful, Most Favorable, Most Critical, or Most Recent
Improves Updates tab information with app version and file size
Safari
Helps protect privacy by only AutoFilling usernames and passwords after selecting them in a web form field
Includes warnings in the Smart Search Field when interacting with password or credit card forms on non-encrypted web pages
AutoFill for usernames and passwords is now available in web views within apps
Articles shared to Mail from Safari are now formatted using Reader mode by default when Reader is available
Folders in Favorites now show icons for the bookmarks contained within
Keyboards
Adds two new Shuangpin keyboard layouts
Adds support for connected hardware keyboards using the Turkish F keyboard layout
Improves Chinese and Japanese keyboards for better reachability on 4.7-inch and 5.5-inch devices
Enables switching back to the keyboard after dictation with just one tap
Addresses an issue where auto-correct could incorrectly capitalize some words
Fixes an issue on iPad Pro that prevented the iPad Smart Keyboard from working after connecting to a captive Wi-Fi access point
Fixes an issue that could cause the Thai keyboard to incorrectly switch to the numeric layout when in landscape mode
Accessibility
App Store adds accessibility support for bold and large text for display customization
Smart Invert adds support for images on the web and in Mail messages
Improves RTT experience and adds RTT support for T-Mobile
Improves app switching on iPad for VoiceOver and Switch Control users
Addresses an issue where VoiceOver incorrectly described Bluetooth status and badge icons
Fixes an issue where end call button might not be presented in the Phone app when using VoiceOver
Fixes an issue where in-app app rating was not accessible with VoiceOver
Resolves an issue when using Live Listen that could distort audio playback
Other improvements and fixes
Introduces support for the AML standard which provides more accurate location data to emergency responders when SOS is triggered (in supported countries)
Adds support for software authentication as a new way for developers to create and enable HomeKit compatible accessories
Podcasts now plays episodes with a single tap, and you can tap Details to learn more about each episode
Improves search performance for users with long notes in Contacts
Improves performance of Handoff and Universal Clipboard when both devices are on the same Wi-Fi network
Fixes an issue that could prevent incoming calls from waking the display
Addresses an issue that could delay or prevent playback of Visual Voicemail
Resolves an issue that prevented opening a web link in Messages
Fixes an issue that could prevent users from returning to Mail after previewing a message attachment
Fixes an issue that could cause Mail notifications to reappear on the Lock screen after they had been cleared
Resolves an issue that could cause time and notifications to disappear from the Lock Screen
Resolves an issue that prevented parents from using Face ID to approve Ask to Buy requests
Fixes an issue in Weather where current weather conditions may not have been updated
Fixes an issue where contacts may not sync with a car’s phone book when connected over Bluetooth
Addresses an issue that could prevent audio apps from playing in cars when the app was in the background
For information on the security content of Apple software updates, please visit this website: