MacRumors published a story that Apple has released the fourth betas of iOS 15.2 and iPadOS 15.2 to registered developers.

Apple Seeds Fourth Betas of iOS 15.2 and iPadOS 15.2 to Developers

Apple today seeded the fourth betas of upcoming iOS and iPadOS 15.2 updates to developers for testing purposes, two weeks after seeding the third betas and a month after the launch of iOS 15.1 and iPadOS 15.1.

iOS and iPadOS 15.2 can be downloaded through the Apple Developer Center or over the air after the proper profile has been installed on an iPhone or an iPad.

  Apple Seeds Fourth Betas of iOS 15.2 and iPadOS 15.2 to Developers