Prerelease v12.0.0 available #2070
Description
A prerelease release is available for v12. There are a number of breaking changes, see the release notes for the details. The release is tagged as next and can be installed with npm install commander@next.
We are interested in particular if these two changes cause problems or prove useful when upgrading existing programs which turn out to have configuration issues:
- Breaking: throw an error if add an option with a flag which is already in use (Throw error when add option with clashing flags #2055)
- Breaking: throw an error if add a command with name or alias which is already in use (Prevent commands being created with overlapping names or aliases #2059)