Following the release of the 27.2 operating system updates, Apple has started the developer beta process for iOS 27.3, macOS 27.3, and others.
iOS 27 on an iPhone
Apple concluded its most recent developer beta process for the 27.2 range of operating systems in late October. Following the public releases, Apple has embarked on a whole new beta round.
The first developer builds of iOS 27.3, iPadOS 27.3, macOS 27.3 Golden Gate, watchOS 27.3, visionOS 27.3, and tvOS 27.3 are now available for testing.