Everything New in the iOS 27.3 Beta

Apple began testing iOS 27.3, the most significant update to iOS 27 since its September launch. This new version brings a mix of previously announced features and new capabilities. For Safari users, a Vertical Tabs layout is now available, and Adaptive Dark Mode allows websites lacking a dark mode option to adopt a darker appearance.

Siri AI experiences enhancements across various apps, including Mail, where it can unsubscribe users from mailing lists and undo recently sent messages. In Weather, Siri now adds locations to your weather list or controls weather notifications. On the Safari side, Siri can handle tasks like clearing browsing history, managing tabs and windows, saving articles to a Reading List, and closing duplicate tabs.

The new Siri actions span Calendar, Files, Journal, Mail, Maps, Messages, Music, Notes, Photos, Preview, Reminders, Shortcuts, and Weather. Users can inquire about Siri's capabilities in each app. Apple has also extended Siri AI to Traditional Chinese, Vietnamese, Turkish, and Norwegian, introducing a Developer Preview for app developers to integrate their content and actions into Siri AI using App Intents.

This allows any app to bring its content and actions directly into Siri AI, enabling the completion of custom actions implemented by developers and the creation of combined actions for a seamless user experience.

A revamped Health app returns in iOS 27.3, featuring Insights and Longevity tabs that offer detailed health and fitness metrics. Insights showcase recent health data such as Activity Rings, heart rate, sleep score, and vitals, with Apple Intelligence providing personalized guidance based on users' goals and activities. The Longevity tab analyzes health data over time, assessing users across seven categories including heart health, sleep, mental wellbeing, movement health, metabolic health, hearing, and nutrition.

Health Age, a novel feature, calculates how users' health metrics compare to their actual age using data from their Apple Watch and home fitness assessments taken via the iPhone's camera.

A new iPhone Duo Reachability feature enables users to bring content closer to their thumbs using a one-handed reach gesture. Additionally, the keyboard on the iPhone Duo's front display has been updated, with swapped emoji and number keys, taller and thinner emoji and number keys, a wider space bar, and smaller, less bold lettering.

StandBy features, initially introduced with the iPhone Duo, are now accessible on all iPhone models running iOS 27. StandBy includes updated analog and digital clock faces, along with new Calendar, Weather, and Photos faces, and the ability to create multiple versions of each face type, swiping between them.

Live Rewind and Siri Recap are now available in watchOS 27.3, requiring iOS 27.3 for usage. These features can be enabled in the Watch app on the iPhone. Apple Intelligence for China has launched, encompassing features like Live Translation, Writing Tools, Visual Intelligence, email and notification summaries, Photos Clean Up, and Genmoji.

Siri AI isn't available in China, nor are the Apple Intelligence features introduced in iOS 27. In earthquake-prone regions, iOS 27.3 supports safety alerts, with Apple collaborating with the China Earthquake Networks Center to provide early warning earthquake alerts to users in China. Additionally, Apple Music introduces a Selfie Sing option, allowing users to capture a video of themselves singing using the camera icon within the Sing playlist.

Users can adjust their recordings with voice modification options and share the karaoke videos with friends or on social media. Finally, the App Library now uses an X button instead of a Cancel button in its search interface, and in Apple Fitness+, a new Gym Strength workout guides users through a four-week plan based on their goals, experience, schedule, and equipment.