iOS 15.4.1 Is Here and Has an iPhone Battery Drain Fix

Apple released iOS 15.4.1 on March 31.
James Martin/CNET

A new iPhone update arrived last week: iOS 15.4.1. Coming on the heels of iOS 15.4, this update is relatively small but still important: It resolves a battery-draining bug and fixes a security flaw that Apple says “may have been actively exploited” on some devices.Some iPhone users took to Twitter to complain about battery drain after installing iOS 15.4. Apple Support responded to these customers by tweeting that it’s normal for some apps and features to adjust for “up to 48 hours after an update.”

Thanks for reaching out! We’ll be happy to help. It’s …