The term signifies a pre-release version of Apple’s mobile operating system, intended for testing and feedback before its official public release. These builds allow developers and interested users to explore upcoming features and identify potential issues. A practical illustration is the installation of this software on a designated device to evaluate its functionality and stability within a real-world environment.
Its availability is vital for ensuring the stability and user experience of the final operating system. By allowing a wider audience to interact with the software, potential bugs and compatibility problems are discovered that might not be apparent during internal testing. Historically, these pre-release versions have significantly contributed to refining the end product, leading to smoother and more reliable user experiences upon the general release.