Inspired by the list of falsehoods programmers believe about names and falsehoods programmers believe about time, here are some Falsehoods programmers believe about Versions and some examples of the falsehoods.

  1. Versions are always numbers
  2. When versions are numbers, they will always be sequential (See PHP 6)
  3. Software never changes how they use versions (see Firefox)
  4. When Software uses X.Y. Z , X is always the major version number (see WordPress) 
  5. Versions always use periods to separate numbers 
  6. Version numbers never decrease
  7. Semver is the only versioning standard
  8. 1.0 is always the first public release
  9. 1.0 is always a stable release
  10. There will never be a time when the second or third number in an X.Y.Z. version exceeds one digit. 
  11. Major version number changes always mean backward compatibility changes.
  12. Minor version number changes never mean backward compatibility changes. 
  13. Version numbers are never adjusted due to superstition
  14. Version numbers are never based on mathematical jokes (See TeX)
  15. Internal version numbers are always the same as external version numbers
  16. No two releases will ever have the same version number
  17. Version numbers are always base 10.