Apple has released the first macOS Big Sur 11.3 developer beta with additional bug fixes and improvements.macOS Big Sur 11.3 developer beta 1Apple offers downloads of its betas through the Apple Developer Center, for participants in its developer test program, though hardware already running beta software can also receive an over-the-air update. Public beta variants usually arrive a short time after developer versions, and can be accessed through the Apple Beta Software Program website.Read more
