gold version
In software and application development, a gold version is the final stage of software development and follows the alpha and beta testing cycles of software development. The gold version is the final version of the software as it will be released to the public. Most or all known bugs prior to release are fixed, and all intended functions for final release are implemented. Media and developers will often use the phrase "gone gold" to announce a software product's impending release.
It's like you find a showstopper in gold version and suddenly everybody loses their minds.