The third beta release of iOS 8 will not occur until Tuesday, July 8, according to a report from BGR



From MacRumors:

That timeframe would mark a three-week interval following the release of the second beta last week. Apple commonly begins seeding versions of its major new iOS versions on roughly two-week intervals, moving to three-week intervals later in the testing period as work progresses. For example, with iOS 7 last year, the second and third betas arrived two weeks after their predecessors with the fourth beta shifting to a three-week interval.

  iOS 8 Beta 3 Reportedly Not Launching Until Tuesday, July 8