WebM and Vorbis video and audio format support.Web Speech API lets developers incorporate speech recognition into their webpages for real-time captioning, dictation, and voice navigation.Additional WebExtensions API lets developers offer extensions that replace the new tab page.Start Page section order can now be customized.All-new Search experience that helps you find relevant topics, channels, and stories.Redesigned News+ feed enables Apple News+ subscribers to quickly find, download, and manage magazine and newspaper issues.Top Charts and popular categories in Search help you discover new shows.

Download behavior and notification settings can be customized on a show-by-show basis.Option to save and download episodes, automatically adding them to your Library for quick access.Podcasts Show Pages are redesigned to make it easier to start listening.City charts showcase what's popular in over 100 cities from all over the world.Autoplay keeps music playing by automatically playing a similar song, once you've reached the end of a song or playlist.Siri now includes more diverse voice options.New face emojis, heart emojis, woman with a beard emoji.Support for separate skin tones for each individual in all variations of the couple kissing emoji and couple with heart emoji.Keyboard, mouse, and trackpad support for iPhone and iPad games that support game controllers.

Keyboard support for iPhone and iPad games designed to use device tilt.

Support for displaying the highest resolution version of an iPhone or iPad app in full screen.

Option to change an iPhone and iPad app's window size.

Lost Mode notifies you when your AirTag is found, and you can enter a phone number where you can be contacted.

The Find My network with hundreds of millions of devices can help you find your AirTag, even when it isn’t nearby.

Support for AirTag to keep track of and find your important items like your keys, wallet, backpack, and more, privately and securely in the Find My app.

MacOS Big Sur 11.3 adds support for AirTag, includes iPhone and iPad app improvements for Macs with M1, introduces separate skin tone variations for emoji with couples, and adds more diverse voice options for Siri.

Macbook air os update