iOS 15.3

Apple no longer signing iOS 15.3, stopping downgrades from newer iOS 15.3.1 firmware

Anthony Bouchard ∙ February 17, 2022

Apple last week publicly released iOS & iPadOS 15.3.1 with bug fixes and security improvements for iPhones and iPads alike. Consequently, we knew it wouldn’t be long until Apple closed the signing window for the older iOS & iPadOS 15.3 firmware.

iOS 15.3 clarifies what to do when iCloud Private Relay is off due to a network error

Christian Zibreg ∙ January 13, 2022

iOS 15.3 helps resolve iCloud Private Relay error messages by no longer blaming cell carriers when the feature gets inadvertently turned off due to a network issue.