After a three-week hiatus, Apple seeded to developers beta versions of all its operating systems on Tuesday. That includes macOS Monterey 12.4, iOS 15.5 and more. On Wednesday, the public was also given the option to test these.
These pre-release versions for iPhone, Mac, iPad, Apple Watch, etc. first came out on the same day Apple announced the date for its WWDC Developers Conference. Beta testing for the five just-released OS versions is expected to end around the same time as the conference.