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 202243 days14 August 202248
iOS 15.4.1 and iPadOS 15.4.131 Mar 202289 days29 June 20222
iOS 15.4 and iPadOS 15.414 Mar 2022106 days12 June 2022N/A
iOS 15.3.1 and iPadOS 15.3.110 Feb 2022138 days11 May 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