During the WWDC 2026 keynote, Apple detailed changes to iOS 27, such as a new version of Siri with a dedicated Siri app and Apple Intelligence features across multiple apps, but there are dozens of smaller but still important changes that Apple didn’t have time to make.
Apple shared an image summarizing some of the bug fixes and optimizations made in iOS 27, iPadOS 27 and macOS 27, and there are some interesting changes.
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Two phone numbers
Apple says you’ll be able to switch between two iPhone devices with the same phone number, which likely means you can set up two iPhones with one number and then switch between them as needed. This could work in the same way that an iPhone and an Apple Watch can share the same phone number. This should be a useful change for anyone looking to get a foldable iPhone and a standard iPhone 18 Pro this year.
Sharing numbers between two iPhones may require carrier support, so it’s unclear if this is implemented in the beta.
Two FaceTime cameras
Dual camera in FaceTime is a listed feature, which likely means you’ll be able to use both the front and rear cameras at the same time during FaceTime calls.
Faster AirPlay and AirDrop
Streaming AirPlay content to HomePod and Apple TV is faster than before thanks to multiple system improvements. AirDrop transfers from iPhone to other devices are also faster, and it’s quicker for an iPhone to find nearby AirDrop recipients.
Message drawing app
There is a drawing app in Messages where you can write a message by hand or draw a picture. It uses the same drawing tools available in the Notes app or when annotating images.
Extra-large widgets
There’s a new extra large widget size you can select on the iPhone home screen. Extra large size takes up an entire app page and displays more information from an app.
Shared album expirations
You can now set a shared photo album to expire after a set amount of time, so it doesn’t exist indefinitely.
Independent alarm volume
The alarm volume can be controlled separately from the system volume, as can alerts and system sounds. In Settings > Sounds & Haptics, there are options to match or unmatch alarms, timers, alerts, and system sounds to the ringtone volume. Turning off the matching option allows you to select a preferred volume level for alarms and system sounds.
Markdown in notes
You can now copy and paste Markdown into the Notes app.
Save a video image
There is a new option to save a video frame as a photo in the Photos app.
Weather report
The Weather app has a “Highlights” view with information at a glance, and includes hourly and 10-day updated views for precipitation and wind speed.
Other iOS 27 optimizations and changes
- Messages load faster in Mail
- Improved Safari energy efficiency
- Improved battery information
- Smoother scrolling in the App Library
- Smoother unlocking on iPhone
- New AutoMix transitions in Apple Music
- Faster pairing of HomeKit accessories
- Faster loading of start page in Safari
- More precise places visited in maps
- Improved message syncing across devices
- More energy efficient personal hotspot on devices with an N1 chip
- Failed messages will automatically attempt to resend
- Improved Bluetooth power management
- Support for time zone changes in sleep mode
- Improved accuracy of unread badges in Mail
These are just some of the improvements and changes Apple introduced in iOS 27. We’ll share more new features in iOS 27 as they are discovered by the community. The iOS 27 beta is available to developers now, with Apple planning to introduce a public beta in July. iOS 27 will launch this fall.
