MacRumors published a story that Apple has released the second betas of iOS 14.2 and iPadOS 14.2 to registered developers.

Apple Releases Second Betas of iOS 14.2 and iPadOS 14.2 to Developers With Music Recognition Toggle for Control Center

Apple today seeded the second betas of upcoming iOS 14.2 and iPadOS 14.2 updates to developers, two weeks after seeding the first betas and a little over two weeks after releasing the iOS 14 and iPadOS 14 updates. iOS and iPadOS 14.2 can be downloaded through the Apple Developer Center or over the air after the proper developer profile has been installed. The iOS 14.2 update brings a new Music Recognition control for the Control Center, which enhances the integration of the Apple-owned Shazam app in the iOS operating system. Music Recognition lets you discover music playing around you and it can recognize music playing in apps even when you're wearing AirPods. 

Apple Releases Second Betas of iOS 14.2 and iPadOS 14.2 to Developers With Music Recognition Toggle for Control Center