Sourced from commander's releases.

v14.0.0

Added

• support for groups of options and commands in the help using low-level .helpGroup() on Option and Command, and higher -level .optionsGroup() and .commandsGroup() which can be used in chaining way to specify group title for following option s/commands (#2328)
• support for unescaped negative numbers as option-arguments and command-arguments (#2339)
• TypeScript: add parseArg property to Argument class (#2359)

Fixed

• remove bogus leading space in help when option has default value but not a description (#2348)
• .configureOutput() now makes copy of settings instead of modifying in-place, fixing side-effects (#2350)

Changed

• Breaking: Commander 14 requires Node.js v20 or higher
• internal refactor of Help class adding .formatItemList() and .groupItems() methods (#2328)

v13.1.0

Added

• support a pair of long option flags to allow a memorable shortened flag, like .option('--ws, --workspace') (#2312)

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.)

... (truncated)

Sourced from commander's changelog.

[14.0.0] (2025-05-18)

Added

• support for groups of options and commands in the help using low-level .helpGroup() on Option and Command, and higher-level .optionsGroup() and .commandsGroup() which can be used in chaining way to specify group title for following options/commands (#2328)
• support for unescaped negative numbers as option-arguments and command-arguments (#2339)
• TypeScript: add parseArg property to Argument class (#2359)

Fixed

• remove bogus leading space in help when option has default value but not a description (#2348)
• .configureOutput() now makes copy of settings instead of modifying in-place, fixing side-effects (#2350)

Changed

• Breaking: Commander 14 requires Node.js v20 or higher
• internal refactor of Help class adding .formatItemList() and .groupItems() methods (#2328)

[13.1.0] (2025-01-21)

Added

• support a pair of long option flags to allow a memorable shortened flag, like .option('--ws, --workspace') (#2312)

[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)
  • note: support for dual long option flags added in Commander 13.1
• 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

... (truncated)

• 395cf71 Preparing for Commander v14.0.0 (#2366)
• dd7edf4 Add typings for helpGroup support (#2367)
• c324ea3 Add support for groups of options and commands in the help (#2328)
• 00af603 Merge branch 'develop' into release/14.x
• fe4bedb ci: Update node-version (#2365)
• ed70e5b Bump eslint from 9.23.0 to 9.25.1 (#2362)
• 5bb7b6e Bump @​eslint/js from 9.23.0 to 9.25.1 (#2363)
• d0380cf Bump typescript from 5.8.2 to 5.8.3 (#2364)
• a2eebf3 Bump @​types/node from 22.13.14 to 22.15.3 (#2361)
• 1276c4c Bump eslint-config-prettier from 10.1.1 to 10.1.2 (#2360)
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