Prerelease v12.0.0 available

[shadowspawn]

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.

• https://github.com/tj/commander.js/releases/tag/v12.0.0-0

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)

[shadowspawn]

Added a refactor of support for built-in help option and help command.

• https://github.com/tj/commander.js/releases/tag/v12.0.0-1

[shadowspawn]

Planning to release v12 this weekend.

[shadowspawn]

Version 12 has been released.