Apple today previewed iOS 11.3 with a whole host of new features, including a new set of Animoji, an ARKit update, and the ability to view personal health records directly in the Health app. iOS 11.3 will be available to customers in the spring. A developer beta of iOS 11.3 will be released today.
iOS 11.3 will also include the aforementioned battery health statistics features. Users will be able to disable the throttling in Settings → Battery, but may see more unexpected shutdowns in exchange for full performance.
Source: 9to5 Mac