Apple has released public betas of new operating systems. To become a member of the pre-test program, you must register on relevant site.
iOS 15 brings new FaceTime features, distraction reduction tools, updated notifications, and privacy improvements.
iPadOS 15, in turn, will please users with updated multitasking, quick notes, improved widgets and the ability to use the iPad as a second screen along with your MacBook or iMac.
It is worth noting that all beta versions are unstable: applications may crash, and the system may not work correctly. Install pre-release systems at your own risk. Recall that the new operating systems from Apple will be released in the fall.
Source: Apple