Note: This has been superceded by the Send Document v2.0.0 specification
Semantic versioning
Given a version number MAJOR.MINOR.PATCH, increment the:
MAJORversion when you make incompatible changesMINORversion when you add functionality in a backwards-compatible mannerPATCHversion when you make backwards-compatible bug fixes
Additional labels for pre-release and build metadata are available as extensions to the MAJOR.MINOR.PATCH format.