iOS 14 and iPadOS 14 are no longer getting any new security patches as Apple has reportedly confirmed that giving updates on the older software versions was of “temporary” nature. The move would help the company expand the base of iOS 15 and iPadOS 15.
In addition to the iOS 15.2.1 update, Apple has also released iPadOS 15.2.1 for iPad users with the same bug fix for the Messages app. Both iPhone and iPad users should download the update as soon as possible.