Sourced from commander's releases.

v13.0.0

Added

• support multiple calls to .parse() with default settings (#2299)
• add .saveStateBeforeParse() and .restoreStateBeforeParse() for use by subclasses (#2299)
• style routines like styleTitle() to add color to help using .configureHelp() or Help subclass (#2251)
• color related support in .configureOutput() for getOutHasColors(), getErrHasColors(), and stripColor() (#2251)
• Help property for minWidthToWrap (#2251)
• Help methods for displayWidth(), boxWrap(), preformatted() et al (#2251)

Changed

• Breaking: excess command-arguments cause an error by default, see migration tips (#2223)
• Breaking: throw during Option construction for unsupported option flags, like multiple characters after single - (#2270)
• Breaking: throw on multiple calls to .parse() if storeOptionsAsProperties: true (#2299)
• TypeScript: include implicit this in parameters for action handler callback (#2197)

Deleted

• Breaking: Help.wrap() refactored into formatItem() and boxWrap() (#2251)

Migration Tips

Excess command-arguments

It is now an error for the user to specify more command-arguments than are expected. (allowExcessArguments is now false by default.)

Old code:

program.option('-p, --port <number>', 'port number');
program.action((options) => {
  console.log(program.args);
});

Now shows an error:

$ node example.js a b c
error: too many arguments. Expected 0 arguments but got 3.

You can declare the expected arguments. The help will then be more accurate too. Note that declaring new arguments will change what is passed to the action handler.

program.option('-p, --port <number>', 'port number');
program.argument('[args...]', 'remote command and arguments'); // expecting zero or more arguments
program.action((args, options) => {
</tr></table> 

... (truncated)

Sourced from commander's changelog.

[13.0.0] (2024-12-30)

Added

• support multiple calls to .parse() with default settings (#2299)
• add .saveStateBeforeParse() and .restoreStateBeforeParse() for use by subclasses (#2299)
• style routines like styleTitle() to add color to help using .configureHelp() or Help subclass (#2251)
• color related support in .configureOutput() for getOutHasColors(), getErrHasColors(), and stripColor() (#2251)
• Help property for minWidthToWrap (#2251)
• Help methods for displayWidth(), boxWrap(), preformatted() et al (#2251)

Changed

• Breaking: excess command-arguments cause an error by default, see migration tips (#2223)
• Breaking: throw during Option construction for unsupported option flags, like multiple characters after single - (#2270)
• Breaking: throw on multiple calls to .parse() if storeOptionsAsProperties: true (#2299)
• TypeScript: include implicit this in parameters for action handler callback (#2197)

Deleted

• Breaking: Help.wrap() refactored into formatItem() and boxWrap() (#2251)

Migration Tips

Excess command-arguments

It is now an error for the user to specify more command-arguments than are expected. (allowExcessArguments is now false by default.)

Old code:

program.option('-p, --port <number>', 'port number');
program.action((options) => {
  console.log(program.args);
});

Now shows an error:

$ node example.js a b c
error: too many arguments. Expected 0 arguments but got 3.

You can declare the expected arguments. The help will then be more accurate too. Note that declaring new arguments will change what is passed to the action handler.

program.option('-p, --port <number>', 'port number');
program.argument('[args...]', 'remote command and arguments'); // expecting zero or more arguments
</tr></table> 

... (truncated)

• d6bcb0b 13.0.0
• fa9e5ed Update release date
• fb2c46a Update CHANGELOG for 13.0.0 (#2301)
• 49423a2 Add save/restore state to allow multiple calls to parse (#2299)
• 497c11d Update dependencies (#2295)
• a8ef5cf Add informative message for missing executable on Windows (#2291)
• 02c603e Add clues about what help configuration is available to help with searches an...
• 37e86af Add links to CHANGELOG
• 53fc8a4 Prepare for 13.0.0-0 (#2292)
• d355b52 More Help documentation (#2282)
• Additional commits viewable in compare view

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