release version number
  • The numbers, letters, and/or words which identify a specific release version of a given program or software package. For example, 1.0, 5.01a, or 2004b beta build #1111. Changes in whole numbers usually imply significant modifications, while fractions, letters, or builds often identify versions which correct bugs, provide minor enhancements, or the like. Also called version number, or program version.

Not what you were looking for?