Only five days after the release of the sixth beta of iOS 10, Apple has released another beta of iOS 10 to registered developers. While the release notes don’t suggest any specific reason for the rapid release of a seventh beta, it presumably fixed some issues in beta 6, and the list of known issues continues to shrink from prior betas as iOS 10 nears its likely release date next month. A corresponding public beta of iOS 10 is also available…