A fourth beta of iOS 11 was issued yesterday to Apple's registered developers, bringing a ton of bug fixes along with several feature changes and subtle visual refinements.
iOS 11 beta 4
iOS 11 public beta 3 now available
Apple today posted a third public beta of iOS 11, which packs in the same features as the developer-only iOS 11 beta 4 release that dropped on Monday.
Fourth developer beta of iOS 11 launches
Apple today released a fourth beta of iOS 11 for iPhone, iPad and iPod touch to its registered developers and members of the Apple Developer Program.