Apple has released the fourth developer beta of iOS 9.3. Interested developers can grab this new build from the iOS Developer Resource Center, or as an over-the-air update on an iPhone or iPad running the previous beta.

iOS 9.3, which is expected later this year, will bring a number of enhancements to the iPhone and iPad user experience. These changes will include the new Night Shift mode, which makes devices easier to use at night, along with improvements to Notes, News, CarPlay, and education.