The update repairs a problem that caused iPhone users to lose cellular service following a call and also exterminates a bug that prevented iPhone users from accessing mobile data. Some users complained about being unable to maintain a data connection even with full bars showing. In addition, iOS 13.2.2 fixes an issue that prevented YubiKey security keys from charging and gets rid of a bug that didn't allow replies to S/MIME encrypted email messages between Exchange accounts from being read.
An update is also available for iPadOS 13.2.2, although it doesn't include the fixes for the cellular and mobile data bugs. To get the update, go to Settings > General > Software update.

Apple drops iOS and iPadOS 13.2.2
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