Today’s a big day for Apple developers, because Apple has unleashed several new beta software updates.

First up is iOS 9.3 beta 3. The latest iOS 9.3 beta is build 13E5200d, and if you’re a registered iOS developer, you can grab it right now. The update to iOS 9.3 includes Night Shift, a new feature that can slowly shift your display to a more warmer hue at night, with the goal of making it easier on your eyes and helping you to fall asleep. Also included in iOS 9.3 are improved Notes and Health apps, 3D Touch for apps like Settings and Weather, support for pairing multiple Apple Watches to a single iPhone, and multi-user support for education.

Apple today also sent out watchOS 2.2 beta 3 and tvOS 9.2 beta 3. watchOS 2.2 includes an updated Maps app and the ability to pair multiple watches to a single iPhone. Meanwhile, tvOS 9.2 adds Bluetooth keyboard support and other goodies, and MacRumors found that the new beta 3 update adds in support for dictation with the Apple TV remote as well.

If you’re a registered iOS developer, you can grab all of these updates right now. Apple hasn’t said when they’ll be pushed to the public, but it’s rumored that Apple may be planning an event for March 15, so we could see at least some of these software updates released to the public then, too.