July 22, 2014
Earlier today, Apple pushed out iOS 8 beta 4 and OS X Yosemite developer preview 4. In line with the release of the two developer builds, the company has announced that it's set to wipe CloudKit data tomorrow, July 22. As reported by 9to5Mac, the imminent data wipe was first disclosed by Apple in one of its release notes for the new OS X Yosemite developer preview, saying that all public CloudKit databases would be emptied on Tuesday. Apple subsequently emailed developers regarding the wipe, advising them to save the data they wish to re-upload and noting that iCloud Drive, iCloud Photo Library, and Mail Drop will not be affected by the data cleanup:
Dear Developer, Starting July 22, 2014, CloudKit will require iOS 8 beta 4 or OS X Yosemite Developer Preview 4. To ensure uninterrupted development of your CloudKit enabled apps, download and upgrade to these versions today. We will perform a server-side data wipe on all CloudKit public databases on July 22. If you are using iCloud containers with public databases, consider creating a copy of your data so that you can re-upload once the data wipe is complete. iCloud Drive, iCloud Photo Library, and Mail Drop will not be impacted by the targeted data wipe. If you have any questions, visit the Apple Developer Forums. Best regards, Apple Developer Technical SupportApple previously performed a data wipe on CloudKit last July 7 to keep the cloud application platform up to date with the then latest developer builds for iOS 8 (beta 3) and OS X Yosemite (developer preview 3).