Apple is rolling out iOS 15.1.1 to iPhone users today. According to Apple, this update “improves call drop performance on iPhone 12 and iPhone 13 models.” Head below for the full details on the update and build number information.
You can update your iPhone to iOS 15.1.1 a by heading to the Settings app, choosing General, then choosing Software Update. The build number for today’s update is 19B81. It clocks in at around 400mb in size on the iPhone 13 Pro Max.
Apple’s release notes for the update are sparse. According to the company, the update only includes one fix:
