Today Apple held a presentation called"California streaming" , in which not only unveiled new gadgets, but also not forgot to announce the release date of the new operating systems.
We're talking about iOS 15, iPadOS 15, watchOS 8 and tvOS 15, which were unveiled at the WWDC 2021 developer conference in early June. They have been beta-testing all summer, and now finally Apple is ready for official launch. So, the new versions of the OS will be released next Monday, September 20.
By the way, Apple has not announced macOS Monterey release date today. This OS will probably be released later, along with the announcement of the new Macs.
Recall, back in June, Apple published a list of smartphones that will receive iOS 15, as well as tablets, computers and laptops that can expect iPadOS 15 and macOS 12 Monterey.
Of course, today's new iPhone 13 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, Apple Watch Series 7, iPad 9 and iPad mini 6 will get iOS 15, iPadOS 15 and watchOS 8 "out of box".