Software versioning

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Software versioning is the process of assigning unique version names or unique version numbers to unique states of computer software. A commonly adopted scheme for version numbers is known as semantic versioning (SemVer), which comprises a three-part version number (Major.Minor.Patch), an optional prerelease tag (e.g. alpha, beta), and an optional build meta tag. A fourth number may also be used to denote the software build, as was the case for Adobe Flash. Some companies also rely on the build date, in a system known as calendar versioning, and letters and other characters, such as Lotus 1-2-3 Release 1a. Most free and open-source software packages treat versions as a series of individual numbers, separated by periods, with a progression such as 1.8.1, 1.9.0. On the other hand, some software packages identify releases by decimal numbers: 1.8, 1.81, 1.82. Developers may choose to jump multiple minor versions at a time to indicate that significant features have been added or for marketing...

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