# Change Log

All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.

<a name="5.0.0"></a>
# [5.0.0](https://github.com/yargs/yargs-parser/compare/v4.2.1...v5.0.0) (2017-02-18)


### Bug Fixes

* environment variables should take precedence over config file ([#81](https://github.com/yargs/yargs-parser/issues/81)) ([76cee1f](https://github.com/yargs/yargs-parser/commit/76cee1f))


### BREAKING CHANGES

* environment variables will now override config files (args, env, config-file, config-object)



<a name="4.2.1"></a>
### [5.0.1](https://www.github.com/yargs/yargs-parser/compare/v5.0.0...v5.0.1) (2021-03-10)


### Bug Fixes

* **security:** address GHSA-p9pc-299p-vxgp ([#362](https://www.github.com/yargs/yargs-parser/issues/362)) ([1c417bd](https://www.github.com/yargs/yargs-parser/commit/1c417bd0b42b09c475ee881e36d292af4fa2cc36))

## [4.2.1](https://github.com/yargs/yargs-parser/compare/v4.2.0...v4.2.1) (2017-01-02)


### Bug Fixes

* flatten/duplicate regression ([#75](https://github.com/yargs/yargs-parser/issues/75)) ([68d68a0](https://github.com/yargs/yargs-parser/commit/68d68a0))



<a name="4.2.0"></a>
# [4.2.0](https://github.com/yargs/yargs-parser/compare/v4.1.0...v4.2.0) (2016-12-01)


### Bug Fixes

* inner objects in configs had their keys appended to top-level key when dot-notation was disabled ([#72](https://github.com/yargs/yargs-parser/issues/72)) ([0b1b5f9](https://github.com/yargs/yargs-parser/commit/0b1b5f9))


### Features

* allow multiple arrays to be provided, rather than always combining ([#71](https://github.com/yargs/yargs-parser/issues/71)) ([0f0fb2d](https://github.com/yargs/yargs-parser/commit/0f0fb2d))



<a name="4.1.0"></a>
# [4.1.0](https://github.com/yargs/yargs-parser/compare/v4.0.2...v4.1.0) (2016-11-07)


### Features

* apply coercions to default options ([#65](https://github.com/yargs/yargs-parser/issues/65)) ([c79052b](https://github.com/yargs/yargs-parser/commit/c79052b))
* handle dot notation boolean options ([#63](https://github.com/yargs/yargs-parser/issues/63)) ([02c3545](https://github.com/yargs/yargs-parser/commit/02c3545))



<a name="4.0.2"></a>
## [4.0.2](https://github.com/yargs/yargs-parser/compare/v4.0.1...v4.0.2) (2016-09-30)


### Bug Fixes

* whoops, let's make the assign not change the Object key order ([29d069a](https://github.com/yargs/yargs-parser/commit/29d069a))



<a name="4.0.1"></a>
## [4.0.1](https://github.com/yargs/yargs-parser/compare/v4.0.0...v4.0.1) (2016-09-30)


### Bug Fixes

* lodash.assign was deprecated ([#59](https://github.com/yargs/yargs-parser/issues/59)) ([5e7eb11](https://github.com/yargs/yargs-parser/commit/5e7eb11))



<a name="4.0.0"></a>
# [4.0.0](https://github.com/yargs/yargs-parser/compare/v3.2.0...v4.0.0) (2016-09-26)


### Bug Fixes

* coerce should be applied to the final objects and arrays created ([#57](https://github.com/yargs/yargs-parser/issues/57)) ([4ca69da](https://github.com/yargs/yargs-parser/commit/4ca69da))


### BREAKING CHANGES

* coerce is no longer applied to individual arguments in an implicit array.



<a name="3.2.0"></a>
# [3.2.0](https://github.com/yargs/yargs-parser/compare/v3.1.0...v3.2.0) (2016-08-13)


### Features

* coerce full array instead of each element ([#51](https://github.com/yargs/yargs-parser/issues/51)) ([cc4dc56](https://github.com/yargs/yargs-parser/commit/cc4dc56))



<a name="3.1.0"></a>
# [3.1.0](https://github.com/yargs/yargs-parser/compare/v3.0.0...v3.1.0) (2016-08-09)


### Bug Fixes

* address pkgConf parsing bug outlined in [#37](https://github.com/yargs/yargs-parser/issues/37) ([#45](https://github.com/yargs/yargs-parser/issues/45)) ([be76ee6](https://github.com/yargs/yargs-parser/commit/be76ee6))
* better parsing of negative values ([#44](https://github.com/yargs/yargs-parser/issues/44)) ([2e43692](https://github.com/yargs/yargs-parser/commit/2e43692))
* check aliases when guessing defaults for arguments fixes [#41](https://github.com/yargs/yargs-parser/issues/41) ([#43](https://github.com/yargs/yargs-parser/issues/43)) ([f3e4616](https://github.com/yargs/yargs-parser/commit/f3e4616))


### Features

* added coerce option, for providing specialized argument parsing ([#42](https://github.com/yargs/yargs-parser/issues/42)) ([7b49cd2](https://github.com/yargs/yargs-parser/commit/7b49cd2))



<a name="3.0.0"></a>
# [3.0.0](https://github.com/yargs/yargs-parser/compare/v2.4.1...v3.0.0) (2016-08-07)


### Bug Fixes

* parsing issue with numeric character in group of options ([#19](https://github.com/yargs/yargs-parser/issues/19)) ([f743236](https://github.com/yargs/yargs-parser/commit/f743236))
* upgraded lodash.assign ([5d7fdf4](https://github.com/yargs/yargs-parser/commit/5d7fdf4))

### BREAKING CHANGES

* subtle change to how values are parsed in a group of single-character arguments.
* _first released in 3.1.0, better handling of negative values should be considered a breaking change._



<a name="2.4.1"></a>
## [2.4.1](https://github.com/yargs/yargs-parser/compare/v2.4.0...v2.4.1) (2016-07-16)


### Bug Fixes

* **count:** do not increment a default value ([#39](https://github.com/yargs/yargs-parser/issues/39)) ([b04a189](https://github.com/yargs/yargs-parser/commit/b04a189))



<a name="2.4.0"></a>
# [2.4.0](https://github.com/yargs/yargs-parser/compare/v2.3.0...v2.4.0) (2016-04-11)


### Features

* **environment:** Support nested options in environment variables ([#26](https://github.com/yargs/yargs-parser/issues/26)) thanks [@elas7](https://github.com/elas7) \o/ ([020778b](https://github.com/yargs/yargs-parser/commit/020778b))



<a name="2.3.0"></a>
# [2.3.0](https://github.com/yargs/yargs-parser/compare/v2.2.0...v2.3.0) (2016-04-09)


### Bug Fixes

* **boolean:** fix for boolean options with non boolean defaults (#20) ([2dbe86b](https://github.com/yargs/yargs-parser/commit/2dbe86b)), closes [(#20](https://github.com/(/issues/20)
* **package:** remove tests from tarball ([0353c0d](https://github.com/yargs/yargs-parser/commit/0353c0d))
* **parsing:** handle calling short option with an empty string as the next value. ([a867165](https://github.com/yargs/yargs-parser/commit/a867165))
* boolean flag when next value contains the strings 'true' or 'false'. ([69941a6](https://github.com/yargs/yargs-parser/commit/69941a6))
* update dependencies; add standard-version bin for next release (#24) ([822d9d5](https://github.com/yargs/yargs-parser/commit/822d9d5))

### Features

* **configuration:** Allow to pass configuration objects to yargs-parser ([0780900](https://github.com/yargs/yargs-parser/commit/0780900))
* **normalize:** allow normalize to work with arrays ([e0eaa1a](https://github.com/yargs/yargs-parser/commit/e0eaa1a))