9to5Mac published a story that Apple has released macOS 11.5 beta to registered developers.

Apple releases macOS 11.5 beta to developers ahead of 11.4 public release

In a surprise move today, Apple has seeded developers with the first macOS 11.5 beta after just releasing the RC build of macOS 11.4 just two days ago. The latest build comes alongside the first iOS 14.7 beta and more.

Apple releases macOS 11.5 beta to developers ahead of 11.4 public release - 9to5Mac