iOS 15.4.1 & iPadOS 15.4.1 Updates Fix Battery Drain Issue
Apple has released iOS 15.4.1 and iPadOS 15.4.1 for iPhone and iPad, the update addresses an issue that was causing battery drain for some users, so if you’ve felt like your battery life has not been as great recently, you may want to install the update sooner than later. Some other small bug fixes and security improvements are also included in 15.4.1, making the update recommended for all iPhone and iPad users.
Additionally, Apple released macOS Monterey 12.3.1 for Mac to address an issue where Bluetooth devices and game controllers were disconnecting from the Mac.