If you were brave enough to install the first iOS 10 beta last month, it’s now time to update.

Apple has released iOS 10 beta 2 to registered developers. If you’ve got iOS 10 beta 1 installed, you should be able to grab the beta 2 update over the air by going into Settings > General > Software Update. If you don’t have iOS 10 beta 1, or you just prefer hooking up your phone to your computer, you can also download iOS 10 beta 2 from Apple’s Developer Center.

Apple says that the iOS 10 beta 2 update includes bug fixes and improvements.

iOS 10 is a significant update to Apple’s mobile operating system. In fact, Apple touts it as “the biggest iOS release ever.” The update will bring an updated Messages app with new animations, personalizations, and an App Store for the Messages app. Also included in iOS 10 is the ability for Siri to work with third-party apps; refreshed version of Apple Maps, Apple Music, and Apple News; Raise to Wake; a new-look lock screen with quick Today View and Camera access; and a refreshed Control Center.

iOS 10 is currently only available to registered iOS developers, but Apple will make a public beta available this month. The final iOS 10 update will be released to the public this fall, and it’ll be available to the iPhone 5 and later, the iPad mini 2 and later, iPad 4 and later, all iPad Air and iPad Pro models, and the iPod touch 6th generation.

Also rolling out today is tvOS 10 beta 2 and watchOS 3 beta 2.