Apple had long ago advertised that new iOS 8 applications must be developed backed by 64-bit architecture by 1st Feb, 2015. On 17 December this month, Apple let developers to remember this due date again by bringing in clarifications for the existing apps. As per the recent clarifications, existing application updates to be upgraded to 64-bit, making a transition from 32-bit, by June 1, 2015.


Any entries of 32-bit applications after 1st June will not be accepted for the AppStore Review. The procedure for overhauling applications to 64-bit architecture is not as easy as it seems to be, however it is not troublesome either. Hence, these guidelines are not to be seen as a disciplinary activity. Apple is simply letting the developers group to progress by being aware with the latest advancements.


Announcements made by Apple Inc.

In order to convey this, Apple started emailing iOS developers to remember February 1, 2015, for start submitting newly built iOS 8 apps, supporting 64-bit architecture & iOS 8 SDK, to the AppStore for review.

Developers were initially made aware of this changes back in October, after the arrival of iPhone 6/6 Plus & iOS 8.

The email additionally expresses that by June 1, 2015, all application overhauls submitted to the App Store will need to fulfill the same prerequisites, ensuring that all applications are iOS 8 SDK & 64-bit compatible.

The transition aims to offer enhanced application execution on 64-bit gadgets.


64-bit architecture in Apple devices

Earlier Apple asked developers to deliver 64-bit applications after iPhone 5s release back in September 2013 due to the arrival of 1st 64-bit A7 processor in 5s model.

Not to forget Apple was the first one to bring 64-bit architecture with the dispatch of iPhone 5s in 2013. Then after all Apple gadgets namely iPad Air, iPad Mini 2, iPad Mini 3, iPad Air 2, iPhone 6/6 Plus included same architecture.

After a gap of almost a year, Apple again started reminding developers in October 2014 switching to 64-bit information architecture.

Currently developers still allowed to deliver 32-bit applications. However, that alternative will lapse when February finally arrives.

Apple clarified these predictions when developers communicated disarray with respect to the organization’s 64-bit application upgrade arrangements. Now developers can take a sigh of relief as they have over six months to get ready for the transition and the application upgrades permitted to stay 32-bit until the end of May.

To make the switching as smooth as possible, Apple has prompted developers to incorporate 64-bit system by utilizing the default Xcode build setting found in the Standard Architectures. This will fabricate every single binary with both 64-bit and 32-bit code in parallel.