MacRumors published a story that Apple has released the fifth betas of iOS 14.5 and iPadOS 14.5.

Apple Seeds Fifth Betas of iOS 14.5 and iPadOS 14.5 to Developers

Apple today seeded the fifth betas of upcoming iOS 14.5 and iPadOS 14.5 updates to developers for testing purposes, with the new beta updates coming one week after Apple released the fourth iOS and iPadOS 14.5 betas. iOS and iPadOS 14.5 can be downloaded through the Apple Developer Center or over the air after the proper profile has been installed on an iPhone or iPad. iOS 14.5 is the biggest update to iOS 14 to date, introducing several significant new features. First and foremost, Apple is making it easier to unlock an iPhone when you're wearing a face mask with a new "Unlock with Apple Watch" feature. 

Apple Seeds Fifth Betas of iOS 14.5 and iPadOS 14.5 to Developers [Update: Public Beta Available]