It is better to follow Semantic Versioning.
Summary
Given a version number MAJOR.MINOR.PATCH, increment the:
MAJOR version when you make incompatible API changes,
MINOR version when you add functionality in a backwards compatible manner, and
PATCH version 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.
For example, a software version 1.2.3 means:
'1': a MAJOR version
'2': a MINOR version
'3': a PATCH version