The expression describes pre-release software undergoing testing. Such software is typically functional but may contain bugs or incomplete features. Testers, often end-users, provide feedback to developers to improve the software’s quality prior to its official launch. An example might involve a game developer releasing an early version of their product to a select group of players for evaluation.
Releasing a preliminary version offers considerable advantages. It allows for the identification and correction of errors that might otherwise go unnoticed until after the official release, thereby reducing potential negative impacts on the user experience. Historically, this phase has evolved from internal alpha testing to wider external participation, contributing significantly to the iterative development model commonly used in software creation. This methodology fosters a more user-centric approach to development.