Apple has just released iOS 7 beta 4 for developers, as an over-the-air (OTA) update. Earlier this morning reports claimed the latest beta would be made available for developers today and here it is for the iPhone 5, at 263MB:

This build should of course include bug fixes and more optimizations, leading up to the final iOS 7 release this fall. We’ll update this post when the downloads hit the Developer Center.

Update: the downloads are now available in the Developer Center. Looks like a new beta has been released for iTunes and the Apple TV as well:

…more to follow