@cssoptimizer

CSSO is a CSS minifier with structural optimizations

github.com/css/csso
Joined February 2016
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  • Followers126
5Media
🚀 postcss-csso 6.0 The PostCSS plugin is now using latest CSSO and CSSTree, added ESM support Release notes: github.com/lahmatiy/postcss-…

Release 6.0.0 · lahmatiy/postcss-csso

Changed supported versions of Node.js to ^12.20.0, ^14.13.0 and >=15.0.0 Converted to ES modules, CommonJS is supported as well (dual module) Bumped csso to 5.0

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CSS minifier we use in SVGO got new major!
CSSO@cssoptimizer4 Dec 2021
🚀 CSSO 5.0 just published Migrated to ESM (CommonJS is still supported), added support for CSS Selectors Level 4 in specificity calculation Release notes: github.com/css/csso/releases…

Release 5.0.0 – ESM support, CSS Selectors Level 4 · css/csso

Added support for CSS Selectors Level 4 and legacy pseudos in specificity calculation, i.e. :has(), :not(), :is(), :matches(), :-moz-any(), :-webkit-any(), :where(), :nth-child...

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🚀 CSSO 5.0 just published Migrated to ESM (CommonJS is still supported), added support for CSS Selectors Level 4 in specificity calculation Release notes: github.com/css/csso/releases…

Release 5.0.0 – ESM support, CSS Selectors Level 4 · css/csso

Added support for CSS Selectors Level 4 and legacy pseudos in specificity calculation, i.e. :has(), :not(), :is(), :matches(), :-moz-any(), :-webkit-any(), :where(), :nth-child...

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CSSO 4.2 is out – now it trim value in Custom Properties and fixes a couple of bugs github.com/css/csso/releases…

Release 4.2.0 · css/csso

Trim Custom Property values when possible (#393) Fixed removing unit for zero-length dimentions in min(), max() and clamp() functions (#426) Fixed crash on bad value in TRBL declaration value (#412)

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CSSO 4.1 is out with latest css-tree under the hood and a few bug fixes Release notes: github.com/css/csso/releases…

Release 4.1.0 · css/csso

Bumped CSSTree to ^1.0.0 Fixed wrongly merging of TRBL values when one of them contains var() (#420) Fixed wrongly merging of pseudo class and element with the same name, e.g. :-ms-input-placeholde...

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postcss-csso 4.0 is out! Drop Node.js < 8.0, update dependencies to latest CSSO & @PostCSS github.com/lahmatiy/postcss-…

Release 4.0.0 · lahmatiy/postcss-csso

Dropped support for Node.js < 8.0 Added support for postcss ^7.0 Moved postcss to peer dependencies Bumped csso to ^4.0

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CSSO 4.0.2 is out with a couple of long awaiting bug fixes: - crashes on broken CSS (instead of just removing bad parts) - wrongly removed percentage sign for `0%` in some cases github.com/css/csso/releases…

Release 4.0.2 · css/csso

Fixed clean stage to avoid exceptions when source has unparsed or bad parts (#369, #378, #380, #397) Fixed wrong percentage sign removal for zero values (#382, #395)

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csso-cli 3.0.0 is out – drop Node.js < 8, update dependencies, fix --usage option and source map generation inconsistency across Node.js versions github.com/css/csso-cli/rele…

Release 3.0.0 · css/csso-cli

Stop support Node.js prior 8.0 Updated dependencies and fixed known security issues (#15) Fixed --usage option that didn't actually work Fixed source map generation inconsistency across Node.js...

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CSSO 4.0 is out – drop Node.js < 8, update dependencies, change bundle files Release notes: github.com/css/csso/releases…

Release 4.0.0 · css/csso

Dropped support for Node < 8 Refreshed dev dependencies and scripts Bumped CSSTree to 1.0.0-alpha.36 (#399) Changed bundle files: dist/csso.js and dist/csso.min.js instead single dist/csso-brows...

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csso-cli 3.0.0 is out – drop Node.js < 8, update dependencies, fix --usage option and source map generation inconsistency across Node.js versions github.com/css/csso-cli/rele…

Release 3.0.0 · css/csso-cli

Stop support Node.js prior 8.0 Updated dependencies and fixed known security issues (#15) Fixed --usage option that didn't actually work Fixed source map generation inconsistency across Node.js...

github.com
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CSSO 4.0 is out – drop Node.js < 8, update dependencies, change bundle files Release notes: github.com/css/csso/releases…

Release 4.0.0 · css/csso

Dropped support for Node < 8 Refreshed dev dependencies and scripts Bumped CSSTree to 1.0.0-alpha.36 (#399) Changed bundle files: dist/csso.js and dist/csso.min.js instead single dist/csso-brows...

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csso and django-pipeline peterbe.com/plog/csso-and-dj… @Django Also contains a reasonable comparison for why csso is probably the best CSS minification tool out there today.

csso and django-pipeline - Peterbe.com

peterbe.com
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Replying to @ravelace @csstree
The problem is fixed. Thank you for notice
CSSO 3.5 is out – reworked to use latest @csstree (1.0.0-alpha.27) github.com/css/csso/releases…

Release 3.5.0 · css/csso

Migrated to CSSTree 1.0.0-alpha.27 WARN: Internal API (i.e. csso.syntax) was changed, see CSSTree's release notes for details

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CSSO 3.4 is out – improvements and fixes with unit removal of zero values github.com/css/csso/releases…

Release 3.4.0 · css/csso

Added percent sign removal for zero percentages for some properties that is safe (@RubaXa, #286) Removed unit removal for zero values in -ms-flex due it breaks flex in IE10/11 (#362) Improved perfo...

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SVGO 1.0 is out! With this version SVGO is using CSSO's usage data feature to strip out unused styles 🎉 github.com/svg/svgo/releases…

Release 1.0.0 / 30.10.2017 · svg/svgo

SVGO now requires Node 4 or higher. Changed CLI syntax to treat filenames as input, thus allowing svgo *.svg syntax. SVGO.optimize() now returns Promise. Added datauri option to JS API. Added suppo...

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Replying to @harisov
Yep, I have. I want do it right, but it requires several pieces of puzzle (mostly in csstree and related). Working on it time by time.
CSSO 3.3.1 is out – fixes merge of `position` declarations when `sticky` fallback is using. Thanks to @GruZZ github.com/css/csso/releases…

Release 3.3.1 · css/csso

Fixed merge of position declarations when sticky fallback is using (thanks to @gruzzilkin, #356)

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Released postcss-csso 3.0 with PostCSS 6.0 as dependency and latest CSSO github.com/lahmatiy/postcss-…

Release 3.0.0 · lahmatiy/postcss-csso

Migrated to PostCSS 6.0.0 Migrated to CSSO 3.3.0

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With @cssoptimizer 3.2 you may not need for css-mqpacker anymore github.com/css/csso/releases… //cc @harisov
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