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slug: cssnano-5-release-notes | ||
title: cssnano 5 release | ||
--- | ||
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We have released a new version of cssnano. | ||
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## Major changes | ||
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* requires Node >= 10.13 | ||
* PostCSS 8 API, so cssnano 5 does not emit warnings when running under PostCSS 8 | ||
* updated to SVGO 2, fixing many SVG minification bugs | ||
* updated css-value-parser and css-selector-parser, fixing many bugs | ||
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### Upgrade notes | ||
If you use the cssnano JavaScript API, you need to change your code: | ||
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* Replace `cssnano.process()` with `cssnano().process()` (notice the `()` after `cssnano`) | ||
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* cssnano specific options go into the options go to cssnano instead of process | ||
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``` | ||
cssnano(cssnanoOptions).process(postcssOptions) | ||
``` | ||
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## Bug fixes | ||
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* fix improperly discarding `@font-face` declarations [#726](https://github.com/cssnano/cssnano/issues/726) | ||
* partially fix some isues where cssnano did not combine rules when used together with `postcss-nested` [#1004](https://github.com/cssnano/cssnano/issues/1004) | ||
* fix `translate3d()` minification [#920](https://github.com/cssnano/cssnano/issues/920) | ||
* fix minification of values starting with `e` [#589](https://github.com/cssnano/cssnano/issues/958), [#984](https://github.com/cssnano/cssnano/issues/984) | ||
* fix minification of percentage vaalues [#962](https://github.com/cssnano/cssnano/issues/962), [#957](https://github.com/cssnano/cssnano/issues/957) | ||
* fix minification of `aspect-ratio` [#963](https://github.com/cssnano/cssnano/issues/963) | ||
* fix merging of `@supports` rules [#974](https://github.com/cssnano/cssnano/issues/974) | ||
* fix sorting of longhand and shorthand properties [#535](https://github.com/cssnano/cssnano/issues/535) | ||
* remove vulnerable dependency and always warn with bad SVG input [#1034](https://github.com/cssnano/cssnano/pull/1034) |