The phrase refers to a process by which individuals gain access to pre-release versions of Apple’s mobile operating system. This access allows users to test upcoming features and improvements before their official public release. For example, a developer might undergo this procedure to ensure their application’s compatibility with the next iteration of the operating system.
Participating offers the advantage of early exposure to new functionalities, enabling proactive adaptation to future updates. Historically, this engagement has aided in identifying and resolving potential software defects prior to widespread distribution, contributing to a more stable and refined final product.