beta4

Beta4 is a version label used in software development to denote the fourth beta release of a product, following earlier beta builds such as beta1, beta2, and beta3. It signals that the product is in a late stage of testing before the final release. Beta releases are distributed to a wider pool of testers than alpha builds, with the goal of uncovering bugs and gathering feedback on usability, performance, and compatibility.

In a typical beta4 cycle, most core features are implemented and advertised as complete, with ongoing fixes for high-priority defects. The release notes usually outline known issues, supported platforms, and any limitations. Testing focuses on regression, stability, and interoperability with external systems. Data migration, localization, and accessibility may also be evaluated.

The exact role of beta4 varies by project. Some teams proceed directly to release candidates after beta4, while others continue with additional betas (for example beta5) if significant issues remain. The label itself is not a guarantee of quality, but indicates a solid testing foundation prior to the final product release.

See also: beta testing, software development lifecycle.