Apple on Wednesday alerted members of its development community that existing applications on the App Store will need to include 64-bit support for any updates submitted after June 1 of next year. The clarification from Apple comes after developers expressed confusion regarding the company’s 64-bit app update policies. With Wednesday’s announcement, developers now have more than six months to prepare for the switch. All newly submitted apps will require 64-bit support beginning on Feb. 1, 2015. They must also be built with the iOS 8 software development kit as of that deadline.