iOS Deferral Calculator

Apple allows iOS updates to be deferred by up to 90 days from release.

Anything in red can no longer be deferred.

VersionRelease DateDays Since ReleaseDeferral Limit DateMax Profile Days*
iOS 15.5 and iPadOS 15.516 May 202213 days14 August 202278
iOS 15.4.1 and iPadOS 15.4.131 Mar 202259 days29 June 202232
iOS 15.4 and iPadOS 15.414 Mar 202276 days12 June 202215
iOS 15.3.1 and iPadOS 15.3.110 Feb 2022108 days11 May 2022N/A
iOS 15.3 and iPadOS 15.326 Jan 2022123 days26 April 2022N/A
iOS 15.2.1 and iPadOS 15.2.112 Jan 2022137 days12 April 2022N/A

* If deploying a deferral today, this is the maximim days that the version can be blocked for.

Useful Links

Managing software updates for Apple devices

VMware Tech Zone Operatonal Tutorial - Managing iOS Updates