Document standards for version numbers and releases

[jchodera]

It would be useful to have standards for versioning and release naming conventions.

[augeorge]

I agree. I suggest semantic versioning.

From the documentation:

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.

[ctk3b]

The Python standard: https://www.python.org/dev/peps/pep-0440/

[jchodera]

Thanks everyone! Anyone want to contribute some recommended text?