Incrementing semantic versions in published packages

 https://docs.npmjs.com/about-semantic-versioning

To help developers who rely on your code, we recommend starting your package version at 1.0.0 and incrementing as follows:

Code status	Stage	Rule	Example version
First release	New product	Start with 1.0.0	1.0.0
Backward compatible bug fixes	Patch release	Increment the third digit	1.0.1
Backward compatible new features	Minor release	Increment the middle digit and reset last digit to zero	1.1.0
Changes that break backward compatibility	Major release	Increment the first digit and reset middle and last digits to zero	2.0.0