https://wccftech.com/apple-releases-ios-14-5-and-ipados-14-5-beta-8/

The eighth beta of iOS 14.5 and iPadOS 14.5 is here for developers. It’s available over the air and packs bug fixes and other improvements.

Given how many betas iOS 14.5 and iPadOS 14.5 has, it is almost like Apple is treating this one like iOS 15, but obviously, it is not. At the same time, this is likely the last beta we will see of the software as Apple has announced a special event for April 20th. It is highly likely that Apple will release the GM on that day or maybe even the final build.