According to BGR, referring to “reliable sources”, Apple released of the fourth beta version of iOS 8 to developers will be on July 21.

The first beta version of iOS 8 was released on June 2. iOS 8 beta 2 came out two weeks later, to be specific, it was on June 17. The third build debuted on July 7, which brought a lot of changes, including iCloud Drive, new wallpaper, switch Handoff, support mode Wi-Fi Calling and a number of other changes.

BGR claims that iOS 4 beta 8 will be out two weeks after the previous build. It is not the first time the release date of beta assemblies are usually predictions correctly. However, in August last year, a mistake was made with the forecast of  iOS 6 beta 7 , debuted in the twentieth of the month, and the release took place a week later.

Several days ago, AppAdvice, citing its own sources also claimed that the debut of iOS 4 beta 8 will be held on Monday, July 28, seems like it might not be case.

The fourth beta will be available to developers on the iPhone 5s, iPhone 5, iPhone 4s, iPad second, third and fourth generation, iPad Air, and iPad mini and iPod touch fifth generation. The public version will be released this Fall simultaneously with the iPhone 6.

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