nose2-testsuite conforms to the Semantic Versioning Specification (2.0.0-rc1).
The basic guidelines are:
Patch version numbers (0.0.x) are used for changes that are API compatible, mainly bug fixes. You should be able to upgrade between minor point releases without any other code changes.
Minor version numbers (0.x.0) may include API changes, in line with the deprecation policy. You should read the release notes carefully before upgrading between medium point releases.
Major version numbers (x.0.0) are reserved for substantial project milestones.
For more information please refer to the SemVer Specification.