Apple Explains Why Power Management Features Were Introduced in January 2017 But Not Disclosed Until February 2017

iOS 10.2.1, introduced on January 23, 2017, has become one of Apple's most infamous iOS updates as it marked the introduction of power management features that slow down older iPhones with degraded batteries.Apple introduced the update, and designed the power management features, to fix unexpected shutdowns that were impacting iPhone 6 and 6s devices.
When iOS 10.2.1 was first released in January of 2017, Apple made no mention that it addressed unexpected shutdowns, and the company did not bring