One day after sending out iOS 11.2.6 to the general public, Apple is now sending a new iOS beta update to developers.

iOS 11.3 beta 3 is now available to registered developers. The update is going out over the air and can also be downloaded through Apple's Developer Center.

The update to iOS 11.3 is a big one. It's bringing four new Animoji — a dragon, a skull, a bear, and a lion — ARKit 1.5 for improved augmented reality, and a new Health Records feature that'll aggregate your medical records in one place. 

iOS 11.3 will also improve Apple's iPhone Batter Health info. The update will better show your iPhone's battery health and recommend a replacement if necessary. Users will also be able to see if their device's performance is being throttled in order to avoid unexpected shutdowns and disable that feature if they'd like.

Apple has said that iOS 11.3 will be released to the public this spring.