Home Devices and OS Share Apple has released iOS 15.3.1, bringing “important security updates for your iPhone and fixes an issue that may cause Braille displays to stop responding,”. The security issue is an exploit which could let a hacker run arbitrary code on users devices. What’s more, Apple notes that this issue may have been actively exploited. At the time of publishing, we have no information on what bug fixes are included. iOS 15.3.1 does not contain any new features. iOS 15.3.1 is available for iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) You can download the update by opening the Settings app and going to General > Software Update.