# Changelog 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. ### [7.3.3](https://github.com/webpack-contrib/postcss-loader/compare/v7.3.2...v7.3.3) (2023-06-10) ### Bug Fixes * **perf:** avoid using `klona` for postcss options ([#658](https://github.com/webpack-contrib/postcss-loader/issues/658)) ([e754c3f](https://github.com/webpack-contrib/postcss-loader/commit/e754c3f8451a09ea633674af90fb3b6b1c073460)) * bug with loading configurations after updating `cosmiconfig` to version 8.2 ([684d265](https://github.com/webpack-contrib/postcss-loader/commit/684d2654393d225bbbcc443ffc9494ab54fe8112)) ### [7.3.2](https://github.com/webpack-contrib/postcss-loader/compare/v7.3.1...v7.3.2) (2023-05-28) ### Bug Fixes * use `cause` to keep original errors and warnings ([#655](https://github.com/webpack-contrib/postcss-loader/issues/655)) ([e8873f4](https://github.com/webpack-contrib/postcss-loader/commit/e8873f46b4ac3cf94d854d8c20f0d0a444309eb6)) ### [7.3.1](https://github.com/webpack-contrib/postcss-loader/compare/v7.3.0...v7.3.1) (2023-05-26) ### Bug Fixes * warning and error serialization ([65748ec](https://github.com/webpack-contrib/postcss-loader/commit/65748ece396d0b38713783495d8a64f128d3992b)) ## [7.3.0](https://github.com/webpack-contrib/postcss-loader/compare/v7.2.4...v7.3.0) (2023-04-28) ### Features * use `jiti` for typescript configurations ([#649](https://github.com/webpack-contrib/postcss-loader/issues/649)) ([8b876fa](https://github.com/webpack-contrib/postcss-loader/commit/8b876fa49c71c434b9c5598b179a4f88cf8123e4)) ### [7.2.4](https://github.com/webpack-contrib/postcss-loader/compare/v7.2.3...v7.2.4) (2023-04-04) ### Bug Fixes * memory leak ([#642](https://github.com/webpack-contrib/postcss-loader/issues/642)) ([7ab3b59](https://github.com/webpack-contrib/postcss-loader/commit/7ab3b591dd108732aeab1178d452763936105eae)) ### [7.2.3](https://github.com/webpack-contrib/postcss-loader/compare/v7.2.2...v7.2.3) (2023-04-03) ### Bug Fixes * `ts-node` loading ([#640](https://github.com/webpack-contrib/postcss-loader/issues/640)) ([38b1992](https://github.com/webpack-contrib/postcss-loader/commit/38b199285e02ec767ebebd366180b663731c38cb)) ### [7.2.2](https://github.com/webpack-contrib/postcss-loader/compare/v7.2.1...v7.2.2) (2023-04-03) ### Bug Fixes * cannot find module 'ts-node' ([#639](https://github.com/webpack-contrib/postcss-loader/issues/639)) ([ab4d16a](https://github.com/webpack-contrib/postcss-loader/commit/ab4d16a55b3539cc2b160727b426c6deef75ace9)) ### [7.2.1](https://github.com/webpack-contrib/postcss-loader/compare/v7.2.0...v7.2.1) (2023-04-03) ### Bug Fixes * cosmiconfig typescript loader ([#635](https://github.com/webpack-contrib/postcss-loader/issues/635)) ([129f5be](https://github.com/webpack-contrib/postcss-loader/commit/129f5be42ead5c5a2b0f654631bcb94fa3d76a95)) ## [7.2.0](https://github.com/webpack-contrib/postcss-loader/compare/v7.1.0...v7.2.0) (2023-04-03) ### Features * add support for TypeScript based configs ([#632](https://github.com/webpack-contrib/postcss-loader/issues/632)) ([c6b5def](https://github.com/webpack-contrib/postcss-loader/commit/c6b5def4459df0492d4d9175748823e89fa8f3ed)) ## [7.1.0](https://github.com/webpack-contrib/postcss-loader/compare/v7.0.2...v7.1.0) (2023-03-16) ### Features * **deps:** update `cosmiconfig` ([#628](https://github.com/webpack-contrib/postcss-loader/issues/628)) ([8114be4](https://github.com/webpack-contrib/postcss-loader/commit/8114be41a46843cbf614bc422e3cafcb8e853860)) ### [7.0.2](https://github.com/webpack-contrib/postcss-loader/compare/v7.0.1...v7.0.2) (2022-11-29) ### Bug Fixes * support ESM version of `postcss.config.js` and `postcss.config.mjs` ([#614](https://github.com/webpack-contrib/postcss-loader/issues/614)) ([955085f](https://github.com/webpack-contrib/postcss-loader/commit/955085f04f5d12bb89d660d88159169b80d5eb99)) ### [7.0.1](https://github.com/webpack-contrib/postcss-loader/compare/v7.0.0...v7.0.1) (2022-07-11) ### Bug Fixes * unexpected failing on CSS syntax error ([#593](https://github.com/webpack-contrib/postcss-loader/issues/593)) ([888d72e](https://github.com/webpack-contrib/postcss-loader/commit/888d72e340b6d176e95c15d5f96ca412af86a66a)) ## [7.0.0](https://github.com/webpack-contrib/postcss-loader/compare/v6.2.1...v7.0.0) (2022-05-18) ### ⚠ BREAKING CHANGES * minimum supported `Node.js` version is `14.15.0` ### [6.2.1](https://github.com/webpack-contrib/postcss-loader/compare/v6.2.0...v6.2.1) (2021-11-26) ### Bug Fixes * watching configuration ([#553](https://github.com/webpack-contrib/postcss-loader/issues/553)) ([7f165b4](https://github.com/webpack-contrib/postcss-loader/commit/7f165b4991b59085651b517d960556a77b72a4d6)) ## [6.2.0](https://github.com/webpack-contrib/postcss-loader/compare/v6.1.1...v6.2.0) (2021-10-13) ### Features * add `link` field in schema ([#540](https://github.com/webpack-contrib/postcss-loader/issues/540)) ([1ae8212](https://github.com/webpack-contrib/postcss-loader/commit/1ae82129bce9039ac25f7254aa9ba8827ab79b3e)) ### [6.1.1](https://github.com/webpack-contrib/postcss-loader/compare/v6.1.0...v6.1.1) (2021-07-01) ### Bug Fixes * do not swallow exception from postcss ([2eec42b](https://github.com/webpack-contrib/postcss-loader/commit/2eec42b1a61bbafa039627d3071ba2a1be03de9f)) ## [6.1.0](https://github.com/webpack-contrib/postcss-loader/compare/v6.0.0...v6.1.0) (2021-06-10) ### Features * allow `String` value for the "implementation" option ([0d342b1](https://github.com/webpack-contrib/postcss-loader/commit/0d342b16dabf58c499da4e13310fdfa5c05badd9)) ## [6.0.0](https://github.com/webpack-contrib/postcss-loader/compare/v5.3.0...v6.0.0) (2021-06-10) ### ⚠ BREAKING CHANGES * minimum supported `Node.js` version is `12.13.0` (#526) ### Bug Fixes * check postcss as project dependency ([570db67](https://github.com/webpack-contrib/postcss-loader/commit/570db6726e4f86c966bc35c13637e0aad00f7a1a)) ## [5.3.0](https://github.com/webpack-contrib/postcss-loader/compare/v5.2.0...v5.3.0) (2021-05-14) ### Features * add support for `dir-dependency` message type ([#524](https://github.com/webpack-contrib/postcss-loader/issues/524)) ([91dea60](https://github.com/webpack-contrib/postcss-loader/commit/91dea607623d3f9a2c3f7c989243934ba5274296)) ## [5.2.0](https://github.com/webpack-contrib/postcss-loader/compare/v5.1.0...v5.2.0) (2021-03-11) ### Features * support `ecma` modules for the 'parser', 'stringifier' and 'syntax' options ([#519](https://github.com/webpack-contrib/postcss-loader/issues/519)) ([cc69754](https://github.com/webpack-contrib/postcss-loader/commit/cc69754383f6f9881ac5f02ec489eb89db2cfb0d)) ## [5.1.0](https://github.com/webpack-contrib/postcss-loader/compare/v5.0.0...v5.1.0) (2021-03-05) ### Features * added support for registering `context`, `build` and `missing` dependencies ([#518](https://github.com/webpack-contrib/postcss-loader/issues/518)) ([9ce4972](https://github.com/webpack-contrib/postcss-loader/commit/9ce4972c6740c8dd82463fff0934987695ccf7d2)), please read [docs](https://github.com/webpack-contrib/postcss-loader#add-dependencies-contextdependencies-builddependencies-missingdependencies) ## [5.0.0](https://github.com/webpack-contrib/postcss-loader/compare/v4.2.0...v5.0.0) (2021-02-02) ### ⚠ BREAKING CHANGES * minimum supported `webpack` version is `5` ## [4.2.0](https://github.com/webpack-contrib/postcss-loader/compare/v4.1.0...v4.2.0) (2021-01-21) ### Features * added the `implementation` option ([#511](https://github.com/webpack-contrib/postcss-loader/issues/511)) ([deac978](https://github.com/webpack-contrib/postcss-loader/commit/deac9787eed614b1c445f091a2b70736a6212812)) ## [4.1.0](https://github.com/webpack-contrib/postcss-loader/compare/v4.0.4...v4.1.0) (2020-11-19) ### Features * partial compatibility with `postcss-cli`, added `api.env` (alias for `api.mode`) and `api.options` (contains options from the `postcssOptions` options), please look at the [example](https://github.com/webpack-contrib/postcss-loader#examples-of-config-files) for more details ([#498](https://github.com/webpack-contrib/postcss-loader/issues/498)) ([84a9c46](https://github.com/webpack-contrib/postcss-loader/commit/84a9c46467086df0185519ceb93bf66893af4cf2)) ### [4.0.4](https://github.com/webpack-contrib/postcss-loader/compare/v4.0.3...v4.0.4) (2020-10-09) ### Chore * update `schema-utils` ## [4.0.3](https://github.com/webpack-contrib/postcss-loader/compare/v4.0.2...v4.0.3) (2020-10-02) ### Bug Fixes * PostCSS 8 plugin loading ([e1b82fe](https://github.com/webpack-contrib/postcss-loader/commit/e1b82feb9cc27f55953b9237708800cb8c07724e)) * error and warning messages ([#485](https://github.com/webpack-contrib/postcss-loader/issues/485)) ([4b44e01](https://github.com/webpack-contrib/postcss-loader/commit/4b44e01a323aa9d2c0965e92c1796158cb36ce5a)) ### [4.0.2](https://github.com/webpack-contrib/postcss-loader/compare/v4.0.1...v4.0.2) (2020-09-15) ### Bug Fixes * compatibility with `postcss@8` ([#479](https://github.com/webpack-contrib/postcss-loader/issues/479)) ([218b0f8](https://github.com/webpack-contrib/postcss-loader/commit/218b0f8013acfafdabea9f561d4c3d074bd2eff3)) ### [4.0.1](https://github.com/webpack-contrib/postcss-loader/compare/v4.0.0...v4.0.1) (2020-09-08) ### Bug Fixes * source map generation with the `map` option for `postcss` ([#476](https://github.com/webpack-contrib/postcss-loader/issues/476)) ([6babeb1](https://github.com/webpack-contrib/postcss-loader/commit/6babeb1d64ca1e7d3d3651cb07881e1e291fa994)) ## [4.0.0](https://github.com/webpack-contrib/postcss-loader/compare/v3.0.0...v4.0.0) (2020-09-07) ### ⚠ BREAKING CHANGES * minimum supported `Node.js` version is `10.13` * minimum supported `webpack` version is `4` * `postcss` was moved to `peerDependencies`, you need to install `postcss` * `PostCSS` (`plugins`/`syntax`/`parser`/`stringifier`) options was moved to the `postcssOptions` option, please look at [docs](https://github.com/webpack-contrib/postcss-loader#postcssoptions) * `sourceMap` default value depends on the `compiler.devtool` option * the `inline` value was removed for the `sourceMap` option, please use `{ map: { inline: true, annotation: false } }` to achieve this * source maps contain absolute paths in `sources` * loader output only CSS, so you need to use `css-loader`/`file-loader`/`raw-loader` to inject code inside bundle * `exec` option was renamed to the `execute` option * the `config` option doesn't support `Object` type anymore, `config.path` and `config.ctx` options were removed * argument in the config for `Function` notation (previously `config.ctx`) was changed, now it contains `{ file, mode, webpackLoaderContext }` * loader context in the config was renamed from `webpack` to `webpackLoaderContext` ### Features * message API for emit assets ([#443](https://github.com/webpack-contrib/postcss-loader/issues/443)) ([e966ab9](https://github.com/webpack-contrib/postcss-loader/commit/e966ab965132ca812cb50e5eaf7df5fc2ad9c137)) * reuse AST from other loaders ([#468](https://github.com/webpack-contrib/postcss-loader/issues/468)) ([9b75888](https://github.com/webpack-contrib/postcss-loader/commit/9b75888dff4957f2ef1e94eca871e329354a9f6d)) * allows to use config and loader options together, options from the loader takes precedence over the config, the `plugins` option from the config and options are merged ([0eb5aaf](https://github.com/webpack-contrib/postcss-loader/commit/0eb5aaf3d49f6d5e570a3c3fdb6b201487e503c7)) * `postcssOptions` options can be `Function` ### Bug Fixes * compatibility with webpack@5 ([#437](https://github.com/webpack-contrib/postcss-loader/issues/437)) ([ed50491](https://github.com/webpack-contrib/postcss-loader/commit/ed504910b70b4d8b4d77084c19ad92330676433e)) * `default` export for plugins ([#465](https://github.com/webpack-contrib/postcss-loader/issues/465)) ([3d32c35](https://github.com/webpack-contrib/postcss-loader/commit/3d32c35c5c911d6bd25dc0c4b5b3cd11408632d7)) * avoid mutations of loader options and config ([#470](https://github.com/webpack-contrib/postcss-loader/issues/470)) ([cad6f07](https://github.com/webpack-contrib/postcss-loader/commit/cad6f07c7f4923e8ef69ecb402b10bbd08d09530)) * respect the `map` option from loader options and config ([#458](https://github.com/webpack-contrib/postcss-loader/issues/458)) ([98441ff](https://github.com/webpack-contrib/postcss-loader/commit/98441ff87e51b58e9322d1bebb5eefc5ba417e24)) ### Notes * you don't need `ident` option for loader * `Object` syntax for the `plugin` option is soft deprecated, please migrate on `Array` syntax (`plugins: ['postcss-preset-env', ['cssnano', options]]`) # [3.0.0](https://github.com/postcss/postcss-loader/compare/v2.1.6...v3.0.0) (2018-08-08) ### Bug Fixes * **index:** add ast version (`meta.ast`) ([f34954f](https://github.com/postcss/postcss-loader/commit/f34954f)) * **index:** emit `warnings` as an instance of `{Error}` ([8ac6fb5](https://github.com/postcss/postcss-loader/commit/8ac6fb5)) * **options:** improved `ValidationError` messages ([549ea08](https://github.com/postcss/postcss-loader/commit/549ea08)) ### Chores * **package:** update `postcss` v6.0.0...7.0.0 (`dependencies`) ([#375](https://github.com/postcss/postcss-loader/issues/375)) ([daa0da8](https://github.com/postcss/postcss-loader/commit/daa0da8)) ### BREAKING CHANGES * **package:** requires `node >= v6.0.0` ## [2.1.6](https://github.com/postcss/postcss-loader/compare/v2.1.5...v2.1.6) (2018-07-10) ### Bug Fixes * **package:** config memory leak, updates `postcss-load-config` v1.2.0...2.0.0 (`dependencies`) ([0547b12](https://github.com/postcss/postcss-loader/commit/0547b12)) ## [2.1.5](https://github.com/postcss/postcss-loader/compare/v2.1.4...v2.1.5) (2018-05-04) ### Bug Fixes * **index:** remove `sourceMap` warning ([#361](https://github.com/postcss/postcss-loader/issues/361)) ([4416791](https://github.com/postcss/postcss-loader/commit/4416791)) ## [2.1.4](https://github.com/postcss/postcss-loader/compare/v2.1.3...v2.1.4) (2018-04-16) ### Bug Fixes * restore loader object in postcss config context ([#355](https://github.com/postcss/postcss-loader/issues/355)) ([2ff1735](https://github.com/postcss/postcss-loader/commit/2ff1735)) ## [2.1.3](https://github.com/postcss/postcss-loader/compare/v2.1.2...v2.1.3) (2018-03-20) ### Bug Fixes * **options:** revert additionalProperties changes to keep SemVer ([bd7fc38](https://github.com/postcss/postcss-loader/commit/bd7fc38)) ## [2.1.2](https://github.com/postcss/postcss-loader/compare/v2.1.1...v2.1.2) (2018-03-17) ### Bug Fixes * **options:** disallow additional properties and add `ident` to validation ([#346](https://github.com/postcss/postcss-loader/issues/346)) ([82ef553](https://github.com/postcss/postcss-loader/commit/82ef553)) ## [2.1.1](https://github.com/postcss/postcss-loader/compare/v2.1.0...v2.1.1) (2018-02-26) ### Bug Fixes * **index:** don't set `to` value (`options`) ([#339](https://github.com/postcss/postcss-loader/issues/339)) ([cdbb8b6](https://github.com/postcss/postcss-loader/commit/cdbb8b6)) # [2.1.0](https://github.com/postcss/postcss-loader/compare/v2.0.10...v2.1.0) (2018-02-02) ### Bug Fixes * **index:** continue watching after dependency `{Error}` ([#332](https://github.com/postcss/postcss-loader/issues/332)) ([a8921cc](https://github.com/postcss/postcss-loader/commit/a8921cc)) ### Features * **index:** pass AST (`result.root`) && Messages (`result.messages`) as metadata to other loaders ([#322](https://github.com/postcss/postcss-loader/issues/322)) ([56232e7](https://github.com/postcss/postcss-loader/commit/56232e7)) ## [2.0.10](https://github.com/postcss/postcss-loader/compare/v2.0.9...v2.0.10) (2018-01-03) ### Bug Fixes * **index:** copy loader `options` before modifying ([#326](https://github.com/postcss/postcss-loader/issues/326)) ([61ff03c](https://github.com/postcss/postcss-loader/commit/61ff03c)) ## [2.0.9](https://github.com/postcss/postcss-loader/compare/v2.0.8...v2.0.9) (2017-11-24) ### Bug Fixes * **index:** filter `ident` (`options.ident`) ([#315](https://github.com/postcss/postcss-loader/issues/315)) ([3e1c7fa](https://github.com/postcss/postcss-loader/commit/3e1c7fa)) ## [2.0.8](https://github.com/postcss/postcss-loader/compare/v2.0.6...v2.0.8) (2017-10-14) ### Bug Fixes * **lib/options:** handle `{Object}` return (`options.plugins`) ([#301](https://github.com/postcss/postcss-loader/issues/301)) ([df010a7](https://github.com/postcss/postcss-loader/commit/df010a7)) * **schema:** allow to pass an `{Object}` (`options.syntax/options.stringifier`) ([#300](https://github.com/postcss/postcss-loader/issues/300)) ([58e9996](https://github.com/postcss/postcss-loader/commit/58e9996)) ## [2.0.7](https://github.com/postcss/postcss-loader/compare/v2.0.6...v2.0.7) (2017-10-10) ### Bug Fixes * sanitizing `from` and `to` options (`postcss.config.js`) ([#260](https://github.com/postcss/postcss-loader/issues/260)) ([753dea7](https://github.com/postcss/postcss-loader/commit/753dea7)) * **index:** runaway promise ([#269](https://github.com/postcss/postcss-loader/issues/269)) ([8df20ce](https://github.com/postcss/postcss-loader/commit/8df20ce)) ## [2.0.6](https://github.com/postcss/postcss-loader/compare/v2.0.5...v2.0.6) (2017-06-14) ### Bug Fixes * allow to pass an `{Object}` (`options.parser`) ([#257](https://github.com/postcss/postcss-loader/issues/257)) ([4974607](https://github.com/postcss/postcss-loader/commit/4974607)) * misspelling in warnings ([#237](https://github.com/postcss/postcss-loader/issues/237)) ([adcbb2e](https://github.com/postcss/postcss-loader/commit/adcbb2e)) * **index:** simplify config loading behaviour ([#259](https://github.com/postcss/postcss-loader/issues/259)) ([b313478](https://github.com/postcss/postcss-loader/commit/b313478)) ## [2.0.5](https://github.com/postcss/postcss-loader/compare/v2.0.4...v2.0.5) (2017-05-10) ### Bug Fixes * regression with `options.plugins` `{Function}` (`webpack.config.js`) (#229) ([dca52a9](https://github.com/postcss/postcss-loader/commit/dca52a9)) ## [2.0.4](https://github.com/postcss/postcss-loader/compare/v2.0.3...v2.0.4) (2017-05-10) ### Bug Fixes * **index:** `postcss.config.js` not resolved correctly (`options.config`) ([faaeee4](https://github.com/postcss/postcss-loader/commit/faaeee4)) * **index:** update validation schema, better warning message ([4f20c99](https://github.com/postcss/postcss-loader/commit/4f20c99)) ## [2.0.3](https://github.com/postcss/postcss-loader/compare/v2.0.2...v2.0.3) (2017-05-09) ### Bug Fixes * **index:** don't fail on 'sourceMap: false' && emit a warning instead, when previous map found (`options.sourceMap`) ([159b66a](https://github.com/postcss/postcss-loader/commit/159b66a)) ## [2.0.2](https://github.com/postcss/postcss-loader/compare/v2.0.1...v2.0.2) (2017-05-09) ### Bug Fixes * **index:** 'No PostCSS Config found' (`options.config`) (#215) ([e764761](https://github.com/postcss/postcss-loader/commit/e764761)) ## [2.0.1](https://github.com/postcss/postcss-loader/compare/v2.0.0...v2.0.1) (2017-05-08) ### Bug Fixes * **index:** 'Cannot create property `prev` on boolean `false`' (`options.sourceMap`) ([c4f0064](https://github.com/postcss/postcss-loader/commit/c4f0064)) # [2.0.0](https://github.com/postcss/postcss-loader/compare/1.2.2...v2.0.0) (2017-05-08) ### Features * **index:** add ctx, ctx.file, ctx.options ([0dceb2c](https://github.com/postcss/postcss-loader/commit/0dceb2c)) * **index:** add options validation ([2b76df8](https://github.com/postcss/postcss-loader/commit/2b76df8)) ## 1.3.3 * Remove `postcss-loader-before-processing` warning (by Michael Ciniawsky). ## 1.3.2 * Fix deprecated warning (by Xiaoyu Zhai). ## 1.3.1 * Fix conflict with CLI `--config` argument (by EGOIST). ## 1.3 * Allow object in syntax options, not only path for require (by Jeff Escalante). ## 1.2.2 * Watch `postcss.config.js` for changes (by Michael Ciniawsky). ## 1.2.1 * Fix relative `config` parameter resolving (by Simen Bekkhus). ## 1.2 * Add `config` parameter (by sainthkh). ## 1.1.1 * Fix `this` in options function (by Jeff Escalante). ## 1.1 * PostCSS common config could be placed to subdirs. * Add webpack instance to PostCSS common config context. ## 1.0 * Add common PostCSS config support (by Mateusz Derks). * Add Webpack 2 support with `plugins` query option (by Izaak Schroeder). * Add `dependency` message support. * Rewrite docs (by Michael Ciniawsky). ## 0.13 * Add `exec` parameter (by Neal Granger). ## 0.12 * Add CSS syntax highlight to syntax error code frame. ## 0.11.1 * Fix Promise API (by Daniel Haus). ## 0.11 * Add `postcss-loader-before-processing` webpack event (by Jan Nicklas). ## 0.10.1 * Better syntax error message (by Andrey Popp). ## 0.10.0 * Add `sourceMap` parameter to force inline maps (by 雪狼). ## 0.9.1 * Fix plugin in simple array config. ## 0.9 * Allow to pass syntax, parser or stringifier as function (by Jeff Escalante). ## 0.8.2 * Fix source map support (by Andrew Bradley). ## 0.8.1 * Fix resource path. ## 0.8 * Add postcss-js support (by Simon Degraeve). ## 0.7 * Added argument with webpack instance to plugins callback (by Maxime Thirouin). ## 0.6 * Use PostCSS 5.0. * Remove `safe` parameter. Use Safe Parser. * Add `syntax`, `parser` and `stringifier` parameters. ## 0.5.1 * Fix string source map support (by Jan Nicklas). ## 0.5.0 * Set plugins by function for hot reload support (by Stefano Brilli). ## 0.4.4 * Fix error on empty PostCSS config. ## 0.4.3 * Better check for `CssSyntaxError`. ## 0.4.2 * Fixed invalid sourcemap exception (by Richard Willis). ## 0.4.1 * Use only Promise API to catch PostCSS errors. ## 0.4 * Add PostCSS asynchronous API support. * Fix source map support (by Richard Willis). * Add warnings API support. * Better output for CSS syntax errors. ## 0.3 * Use PostCSS 4.0. ## 0.2 * Use PostCSS 3.0. ## 0.1 * Initial release.