Change Log¶ ↑

10.4.13.0¶ ↑

Fixed missed prefixes on vendor prefixes in name of CSS Custom Property.
Fixed support of unit-less zero angle in backgrounds (by 一丝).
Fixed text-decoration prefixes by moving to MDN data (by Romain Menke).
Fixed unicode-bidi prefixes by moving to MDN data.
Fixed css-unicode-bidi issue from latest Can I Use.
Do not print color-adjust warning if print-color-adjust also is in rule.

10.4.7.0¶ ↑

Fixed print-color-adjust support in Firefox.
Fixed print-color-adjust support.
Fixed NaN in grid (by @SukkaW).

10.4.2.0¶ ↑

Fixed missed -webkit- prefix for width: stretch.
Fixed ::file-selector-button data (by Luke Warlow).
Ensure sprockets-rails is loaded before autoprefixer-rails (by Thomas Morgan)

10.4.0.0¶ ↑

Added :autofill support (by Luke Warlow).

10.3.3.0¶ ↑

Fixed ::file-selector-button support (by Usman Yunusov).
Fixed wrong -moz- prefix from ::file-selector-button (by Usman Yunusov).

10.3.1.0¶ ↑

Added ::file-selector-button support (by Luke Warlow).
Fixed adding wrong prefixes to content (by Luke Warlow).
Fix ReferenceError: Can't find variable: URL (#213)

10.2.5.1¶ ↑

Remove nodejs version check via ExecJS, to be compatible with 2.8.1 (#203)

10.2.5.0¶ ↑

Fixed : support in @supports (by Dmitry Semigradsky).
Update Can I Use data.
Lock to execjs < 2.8.0 for now (#203)

10.2.4.0¶ ↑

Fixed transition-property warnings (by @Sheraff).

10.2.0.0 “Sub rosa”¶ ↑

Added TypeScript definitions (by Dmitry Semigradsky).
Fixed docs (by Florian Pellet).
Update Can I Use data.
Update postcss to 8.2.2

10.1.0.0 “Pula”¶ ↑

Fixed Cannot read property 'proxyOf' of undefined error (by Igor Kamyshev).
Added dpcm unit support to min-resolution: 2dppx (by Robert Eisele).
Fixed rational approximation in min-resolution (by Robert Eisele).

10.0.3.0¶ ↑

Fixed substract to subtract value for mask-composite (by Michelle Enos).
Update Can I Use data

10.0.2.0¶ ↑

Removed -ms-user-select: all because IE and old Edge don’t support it.
Fixed Grid Layout warning.
Update Can I Use data

10.0.1.3¶ ↑

Fix fileURL.replace is not a function when reporting warnings (#194)

10.0.1.2¶ ↑

Workaround existsSync not a function (#193)

10.0.1.1¶ ↑

Update Can I Use data.
Update postcss to 8.1.4
Fix issue with source map (#190)

10.0.1.0¶ ↑

Update Can I Use data.
Update autoprefixer to 10.0.1
Update postcss to 8.1.1

10.0.0.2¶ ↑

Update postcss to 8.0.5
Update browserslist & caniuse-lite

10.0.0.1¶ ↑

Improved error message for old environments.
Reduced gem file size.

10.0 “Alis volat propriis”¶ ↑

Removed support for Node.js 6.x, 8.x, 11.x.
Moved to PostCSS 8.

9.8.6.5¶ ↑

Fix 9.8.6.4 regression.

9.8.6.4¶ ↑

Remove deprecation warnings.

9.8.6.3¶ ↑

Fix deprecation warning for non-Rails environment.

9.8.6.2¶ ↑

Print deprecation warning only once.

9.8.6.1¶ ↑

Improve deprecated warnings.

9.8.6¶ ↑

Fixed env option.
Added deprecation warning.

9.8.5¶ ↑

Improved Grid Layout warnings (by Daniel Tonon).

9.8.4¶ ↑

Reduce JS bundle size.

9.8.3¶ ↑

Update Can I Use data.

9.8.2¶ ↑

Update Can I Use data.

9.8.1¶ ↑

Replace chalk to kleur (by Luke Edwards).

9.8 “Vigilo Confido”¶ ↑

Add :placeholder-shown support (by Tanguy Krotoff).

9.7.6¶ ↑

Revert -webkit-stretch fix.

9.7.5¶ ↑

Fix -webkit-stretch support.
Reduce gem file size.

9.7.4¶ ↑

Update Can I Use data.

9.7.3¶ ↑

Update Can I Use data.

9.7.2¶ ↑

Add -ms-user-select: element support.

9.7.1¶ ↑

Avoid unnecessary transitions in prefixed selectors (by Andrey Alexandrov).
Fix fit-content for Firefox.

9.7 “Ad Victoriam”¶ ↑

Add AUTOPREFIXER_GRID env variable to enable Grid Layout polyfill for IE.
Fix Cannot read property 'grid' of undefined error.

9.6.5¶ ↑

Fix selector prefixing (by Andrey Alexandrov).

9.6.4¶ ↑

Now the real fix for 'startsWith' of undefined error.

9.6.3¶ ↑

Fix Cannot read property 'startsWith' of undefined error.

9.6.2¶ ↑

Fix false Replace fill to stretch warning.

9.6.1.1¶ ↑

Update Can I Use data.

9.6.1¶ ↑

Fix -webkit-line-clamp truncating multi-line text support.

9.6 “Nunc id vides, nunc ne vides”¶ ↑

Add warning-less overrideBrowserslist option.
Add text-orientation support.
Add min-resolution: 2x alias support.

9.5.1.1¶ ↑

Fix register_postprocessor' for nil:NilClass error.
Update Can I Use data.

9.5.1¶ ↑

Fix backdrop-filter for Edge (by Oleh Aloshkin).
Fix min-resolution media query support in Firefox < 16.

9.5 “Draco dormiens nunquam titillandus”¶ ↑

Add mask-composite support (by Semen Levenson).

9.4.10.2¶ ↑

Fix Ruby < 2.4 support (by Jack Ford).
Update Can I Use data.

9.4.10.1¶ ↑

Fix non-Rails environments support (by Junya Ogura).
Update Can I Use data.

9.4.10¶ ↑

Add warning for named Grid rows.

9.4.9¶ ↑

Fix grid-template and @media case (by Bogdan Dolin).

9.4.8¶ ↑

Fix calc() support in Grid gap.

9.4.7¶ ↑

Fix infinite loop on mismatched parens.

9.4.6¶ ↑

Fix warning text (by Albert Juhé Lluveras).

9.4.5¶ ↑

Fix text-decoration-skip-ink support.

9.4.4¶ ↑

Use direction value for -ms-writing-mode (by Denys Kniazevych).
Fix warning text (by @zzzzBov).

9.4.3¶ ↑

Add warning to force flex-start instead of start (by Antoine du Hamel).

9.4.2¶ ↑

Fix Grid autoplacement warning.

9.4.1¶ ↑

Fix unnecessary Flexbox prefixes in Grid elements.

9.4 “Advance Australia”¶ ↑

Add Grid autoplacement for -ms- (by Bogdan Dolin).
Improve warnings (by Daniel Tonon).
Remove some unnecessary warnings for Grid (by Andrey Alexandrov).

9.3.1¶ ↑

Fix Grid prefixes with repeat() value (by Bogdan Dolin).

9.3 “Labor omnia vincit”¶ ↑

Add place-self support (by Bogdan Dolin).
Fix Grid row/column span inheritance bug (by Bogdan Dolin).

9.2.1¶ ↑

Update Can I Use data.

9.2 “Ony est glavnaya krepost”¶ ↑

Add /* autoprefixer grid: on */ control comment (by Andrey Alexandrov).
Add duplicate grid-area support (by Bogdan Dolin).
Fix grid-gap support for rules with different specifity (by Bogdan Dolin).
Disable Grid in @supports at-rule with non-supported Grid features.
Improve Grid warnings (by Daniel Tonon).

9.1.4¶ ↑

Fix ExecJS runtime test (by Patrice Chalin).

9.1.3¶ ↑

Sort properties in rake autoprefixer alphabetically.
Fix old Firefox gradient prefix.

9.1.2¶ ↑

Fix autoprefixer --info in new Node.js.
Fix ExecJS runtime warning.

9.1.1¶ ↑

Retain grid-gap through @media (by Bogdan Dolin).
Fix grid-template and @media (by Bogdan Dolin).
Fix Grid areas searching error (by Bogdan Dolin).
Fix span X Grid prefix (by Bogdan Dolin).
Fix log2 error.

9.1 “Equality before the law”¶ ↑

Add background-clip: text support.
Fix adding Grid span for IE (by Bogdan).

9.0.2¶ ↑

Show warning on Grid area names conflict (by Bogdan).
Fix ExecJS warning (by Jan Kmet).

9.0.1¶ ↑

Fix nested at-rules in Grid prefixes (by Ivan Malov).

9.0 “A Mari Usque Ad Mare”¶ ↑

Remove Node.js 9 and Node.js 4 support.
Remove RubyRacer and Sprockets 3 support.
Use PostCSS 7.0.
Use Browserslist 4.0.

8.6.5¶ ↑

Do not show Grid warnings if IE was not selected.

8.6.4¶ ↑

Fix stretch prefix in Chrome >= 46.

8.6.3¶ ↑

Add warnings for unsupported Grid features.
Add warnings about wrong Grid properties.
Add note about grid option for grid properties in rake autoprefixer.

8.6.2¶ ↑

Fix error during adding Grid prefixes in @media (by Evgeny Petukhov).

8.6.1¶ ↑

Fix grid-template with media queries (by Evgeny Petukhov).

8.6 “Follow Reason”¶ ↑

Add gap support (by Evgeny Petukhov).
Add two values support for grid-gap and gap (by Evgeny Petukhov).

8.5.2¶ ↑

Fix grid-template support wit auto row sizes (by Yury Timofeev).

8.5.1¶ ↑

Remove unnecessary warning on -webkit-fill-available.

8.5 “Muito Nobre e Sempre Leal”¶ ↑

Add grid-gap support (by Evgeny Petukhov).
Fix radial gradients direction fix.

8.4.1¶ ↑

Fix non-related to Ruby issue.

8.4 “Non in aves, sed in angues”¶ ↑

Add /* autoprefixer: ignore next */ control comment (by Pavel Vostrikov).

8.3.0.1¶ ↑

Remove Opera Mobile 12.1 from default browsers.
Update Can I Use data.

8.3 “Benigno Numine”¶ ↑

Add @media support to grid-template (by Evgeny Petukhov).
Fix radial-gradient direction warning (by Gustavo Real).

8.2 “Ad Astra per Aspera”¶ ↑

Add color-adjust (by Sergey Lysenko, Stanislav Botev, and Yuriy Alekseyev).

8.1.0.1¶ ↑

Add more clear error on missed browser version.

8.1 “Rex, Familia et Ultio”¶ ↑

Add overscroll-behavior support.
Add grid-template shortcut support (by Evgeny Petukhov).
Add better grid-column-end and grid-row-end support (by Evgeny Petukhov).
Fix Grid properties support in @supports.

8.0 “Excelsior”¶ ↑

Use Browserslist 3.0.
Remove break-* to page-break-* conversion for Firefox.

7.2.6¶ ↑

Fix -ms- prefix for grid cells with same grid-area (by Evgeny Petukhov).

7.2.5¶ ↑

Fix multiple prefixes in declaration value.

7.2.4¶ ↑

Update Can I Use data.

7.2.3¶ ↑

Fix grid-template-areas in @media (by Evgeny Petukhov).

7.2.2¶ ↑

Fix _autoprefixerDisabled is undefined issue.

7.2.1¶ ↑

Fix IE and other old JS runtimes support.

7.2 “Ordem e Progresso”¶ ↑

Add grid-template-areas support (by Evgeny Petukhov).
Add grid-template support (by Evgeny Petukhov).
Add grid-area support (by Alexey Komarov).
Add autoprefixer-info CLI tool.
Add wrong radial-gradient properties warning.
Use current working dir on missed from in info() (by Phil Dokas).
Fix grid-row and grid-column support (by Alexey Komarov).
Do not prefix reverse animation direction.
Improve test coverage (by Dmitry Semigradsky).

7.1.6¶ ↑

Add warning for using browserslist option instead of browsers.
Add warning for multiple control comments in the same scope.
Fix Invalid array length error during indent changes.

7.1.5¶ ↑

Fix ::placeholder prefix for Edge.
Fix inherit/initial/unset values for flex-direction.
Fix RegExp usage in gradients (by Yet Another Minion).

7.1.4.1¶ ↑

Update PostCSS.
Update Can I Use data.

7.1.4¶ ↑

Fix radial-gradient direction conversion.
Fix image-set in cursor.

7.1.3¶ ↑

Add warning for old radial-gradient direction syntax.
Add last n major versions browser query.

7.1.2.6¶ ↑

Fix .browserslistrc support

7.1.2.5¶ ↑

Fix > 0 query for browsers with one version.
Update Can I Use data.

7.1.2.4¶ ↑

Add unreleased versions and unreleased Chrome versions browsers queries.
Update Can I Use data.

7.1.2.3¶ ↑

Add region usage statistics support.
Fix base64 decoding for old Node.js.
Update Can I Use data.

7.1.2.2¶ ↑

Fix working with empty autoprefixer.yml (by Murahashi Kenichi).

7.1.2.1¶ ↑

Fix loading autoprefixer.yml from engines (by Jim Ryan).

7.1.2¶ ↑

Fix text-decoration shortcut support.

7.1.1.3¶ ↑

Update Can I Use data.
Update PostCSS.

7.1.1.2¶ ↑

Update Can I Use data.
Update Browserslist.

7.1.1.1¶ ↑

Update Can I Use data.
Update Browserslist.
Update PostCSS.

7.1.1¶ ↑

Remove non--webkit- intrinsic prefixes in Grid Layout (by 一丝).

7.1 “Universitas litterarum”¶ ↑

Add unicode-bidi support.
Add -webkit-appearance support for Edge.
Fix intrinsic widths prefixes in Grid Layout.

7.0.1¶ ↑

Fix therubyracer support.

7.0 “Coelestem adspicit lucem”¶ ↑

Remove node.js 0.12 support.
Use PostCSS 6.0.
Use Browserslist 2.
Use caniuse-lite instead of caniuse-db (by Ben Briggs).
Rewrite project from CoffeeScript to Babel (by Dmitry Semigradsky).
Disable Grid Layout prefixes for IE by default.
Fix -ms-grid-column-align.

6.7.7.2¶ ↑

Update Can I Use data.
Update PostCSS.

6.7.7.1¶ ↑

Update Firefox ESR.
Update Can I Use data.

6.7.7¶ ↑

Fix order for non-digit values.

6.7.6¶ ↑

Fix font-kerning (by Chi Vinh Le).

6.7.5¶ ↑

Fix text-decoration-skip in iOS (by Chi Vinh Le).
Fix clip-path (by Chi Vinh Le).

6.7.4¶ ↑

Improve browsers option perfomance.
Update CoffeeScript compiler.

6.7.3¶ ↑

Fix compatibility with “Intrinsic & Extrinsic Sizing” spec update.

6.7.2¶ ↑

Do not prefix grid/flexbox in @supports on grid: false/flexbox: false.

6.7.1¶ ↑

Update Browserslist to fix last n version query.
Update Can I Use data.

6.7 “Krungthep doot thep saang”¶ ↑

Add Electron support in browsers list (by Kilian Valkhof).
Add flex-flow partial support for Flexbox 2009 specification.
Fix browsers 0 version issue in some Can I Use data.

6.6.1¶ ↑

Update Can I Use data.

6.6 “Kaiyuan”¶ ↑

Add support for separated environments in browserslist config.

6.5.4¶ ↑

Fix unitless 0 basis in IE10/IE11 shorthand flex (by Google).

6.5.3.1¶ ↑

Update PostCSS to 5.2.6.
Update Can I Use data.

6.5.3¶ ↑

Add error for popular mistake with browser option instead of browsers.

6.5.2¶ ↑

Clean prefixes data (by Reinaldo Schiehll).

6.5.1.1¶ ↑

Better syntax error messages with PostCSS 5.2.5.
Update Can I Use data.

6.5.1¶ ↑

Fix selectors with :-- prefix support.

6.5.0.2¶ ↑

Better CSS highlight by PostCSS 5.2.4.
Update Can I Use data.

6.5.0.1¶ ↑

Better syntax error output by PostCSS 5.2.3.
Update Can I Use data.

6.5 “Einigkeit und Recht und Freiheit”¶ ↑

Add defaults keyword to browsers requirements.
Fix CSS Grid Layout support.
Fix align-self cleaning.

6.4.1.1¶ ↑

Better syntax error output by PostCSS 5.2.
Update Can I Use data.

6.4.1¶ ↑

Fix node cloning.

6.4.0.3¶ ↑

Update Browserslist.
Update Can I Use data.

6.4.0.2¶ ↑

Fix autoprefixer.js loading path in some cases (by Pavan Trikutam)
Update Can I Use data.

6.4.0.1¶ ↑

Fix Sprockets 3 support (by Eda Riedl).

6.4 “Hic et ubique terrarum”¶ ↑

Add :any-link selector support.
Add text-decoration-skip support.
Add transition: duration property support.
Fix -webkit- prefix for backface-visibility.
Fix rad unit support in gradients (by 刘祺).
Fix transition support in Opera 12.
Fix warning in Sprokets 3.
Removed Safari TP Grid prefixes support.

6.3.7¶ ↑

Fix browserslist path detection (by Jose Luis Salas).
Fix rare Cannot read property 'constructor' of null issue.
Add space-less >1% and >.5% syntax support.
Clean 0 versions in some country-based requests.
Update Can I Use data.

6.3.6.2¶ ↑

Update Firefox ESR.
Update Can I Use data.

6.3.6.1¶ ↑

Fix source map for Sprockets 4 (by Richard Schneeman).

6.3.6¶ ↑

Add Safari TP prefix support for Grid Layout.

6.3.5¶ ↑

Fix duplicate prefixes for -ms-interpolation-mode.

6.3.4¶ ↑

Show users coverage for selected browsers in .info and Rake task.

6.3.3.1¶ ↑

Add Sprockets 4 support (by Richard Schneeman).
Add AutoprefixerRails.uninstall().
Use bundle_processor for Sprockets 4 (by Adam Becker).
Clean gem dependency from json (by deepj).

6.3.3¶ ↑

Fix transition warning.

6.3.2¶ ↑

Update Can I Use data.

6.3.1¶ ↑

Fix compatibility with Flexibility polyfill.

6.3 “Pro rege et lege”¶ ↑

Add Grid Layout support.
Add text-spacing support.
Add > 10% in my stats browsers query with custom usage statistics.
Add options to disable @supports, Flexbox or Grid support.
Fix compatibility with other PostCSS plugins.

6.2.3¶ ↑

Fix error on broken transition with double comma.

6.2.2¶ ↑

Fix issues in broken transitions.

6.2.1¶ ↑

Fix AST error in transition warning (by @jvdanilo).

6.2 “Fluctuat nec mergitur”¶ ↑

Use fill instead of fill-available according spec changes (by 一丝).
Add fill support for logical dimension properties (by 一丝).
Add text-emphasis support (by 一丝).
Add prefixes to @supports only for compatible browsers.
Add rad, grad and turn units support to linear gradients.
Add some deg directions support for old WebKit linear gradients.
Fix @supports parenthesis (by @heady).
Fix Rails without Assets Pipeline support (by Zach Denton).
Add warning when prefixes could not be generated for complicated transition-property values.
Add warning for outdated fill-available value.
Add warning for wrong text-emphasis-position value.
Add “time capsule” warning for prefix-less future.
Normalizes all warning messages.

6.1.2¶ ↑

Fix gradient hack on some parameters (by Alexey Efremov).

6.1.1¶ ↑

Fix cursor: grab and cusror: grabbing support.

6.1.0.1¶ ↑

Return old Rails integration to fix strange issues.

6.1 “Bil-shaʿb wa lil-shaʿb”¶ ↑

Change transition support to output more robust CSS.
Add :read-only support.
Add support for appearance with any values.
Add loud /*! autoprefixer: off */ control comments support.
Convert rotateZ to rotate for -ms-transform.
Use postcss-value-parser to carefully work with gradients.
Remove -ms-transform-style and -o-transform-style that never existed.

6.0.3¶ ↑

Fix old gradient direction warning.

6.0.2¶ ↑

Remove unnecessary -khtml- prefix too.

6.0.1¶ ↑

Fix cross-fade() support (by 一丝).

6.0 “Eureka”¶ ↑

Remove Ruby on Rails 3 support.
Remove Ruby 1.9 support.
Remove safe option.
Remove Opera 12.1 from default query.
Add image-set support (by 一丝).
Add mask-border support (by 一丝).
Add filter() function support (by Vincent De Oliveira).
Add backdrop-filter support (by Vincent De Oliveira).
Add element() support (by Vincent De Oliveira).
Add CSS Regions support.
Add Scroll Snap Points support.
Add writing-mode support.
Add ::backdrop support.
Add cross-fade() support.
Add other break- properties support.
Add Microsoft Edge support (by Andrey Polischuk).
Add not keyword and exclude browsers by query.
Add version ranges IE 6-9 (by Ben Briggs).
Fix filter in transition support on Safari.
Fix url() parsing.
Fix pixelated cleaning.
Always show old gradient direction warning.

5.2.1.3¶ ↑

Update Can I Use database.
Update internal libraries.

5.2.1.2¶ ↑

Update Can I Use database.
Update internal libraries.

5.2.1.1¶ ↑

Update Can I Use database.
Update internal libraries.

5.2.1¶ ↑

Fix parent-less node issue on some cases (by Josh Gillies)

5.2.0.1¶ ↑

Update Can I Use database.

5.2 “Dont tread on me”¶ ↑

Add appearance support.
Warn users on old gradient direction or flexbox syntax.
Add add: false option to disable new prefixes adding.
Make Autoprefixer 30% faster.
Add prefixes for pixelated instead of crisp-edges in image-rendering.
Do not add ::placeholder prefixes for :placeholder-shown.
Fix text-decoration prefixes.

5.1.11¶ ↑

Update num2fraction to fix resolution media quuery (by 一丝).

5.1.10¶ ↑

Do not generate -webkit-image-rendering.

5.1.9¶ ↑

Fix DynJS compatibility (by Nick Howes).

5.1.8.1¶ ↑

Update Can I Use database.

5.1.8¶ ↑

Fix gradients in mask and mask-image properties.
Fix old webkit prefix on some unsupported gradients.

5.1.7.1¶ ↑

Update Can I Use database and JS libraries.
Better support with Alaska runtime (by Jon Bardin).

5.1.7¶ ↑

Fix placeholder selector (by Vincent De Oliveira).

5.1.6¶ ↑

Use official ::placeholder-shown selector (by Vincent De Oliveira).
Fix problem with rails-html-sanitizer (by Alexey Vasiliev).

5.1.5¶ ↑

Add transition support for CSS Masks properties.

5.1.4¶ ↑

Use -webkit- prefix for Opera Mobile 24.

5.1.3.1¶ ↑

Fix Rails 5 support (by Joshua Peek).

5.1.3¶ ↑

Add IE support for image-rendering: crisp-edges.

5.1.2¶ ↑

Add never existed @-ms-keyframes to common mistake.

5.1.1¶ ↑

Safer value split in flex hack.

5.1 “Jianyuan”¶ ↑

Add support for resolution media query (by 一丝).
Higher accuracy while removing prefixes in values.
Add support for logical properties (by 一丝).
Add @viewport support.
Add text-overflow support (by 一丝).
Add text-emphasis support (by 一丝).
Add image-rendering: crisp-edges support.
Add text-align-last support.
Return autoprefixer.defaults as alias to current browserslist.defaults.
Save code style while adding prefixes to @keyframes and @viewport.
Do not remove -webkit-background-clip with non-spec text value.
Fix -webkit-filter in transition.
Better support for browser versions joined on Can I Use like ios_saf 7.0-7.1 (by Vincent De Oliveira).
Fix compatibility with postcss-import (by Jason Kuhrt).
Fix Flexbox prefixes for BlackBerry and UC Browser.
Fix gradient prefixes for old Chrome.

5.0.0.3¶ ↑

Fix error on nil in processor params.

5.0.0.2¶ ↑

Fix for non-Rails environments.
Add notice about unsupported ExecJS runtimes.
Update Can I Use data.

5.0.0.1¶ ↑

Fix issue on node.js runtime.

5.0 “Pravda vítězí”¶ ↑

Use PostCSS 4.0.
Use Browserslist to parse browsers queries.
Use global browserslist config. Key browsers in config/autoprefixer.yml is now deprecated.
Add > 5% in US query to select browsers by usage in some country.
Add object-fit and object-position properties support.
Add CSS Shape properties support.
Fix UC Browser name in debug info.

4.0.2.2¶ ↑

Update Can I Use data.
Update some npm dependencies.

4.0.2.1¶ ↑

Fix IE filter parsing with multiple commands.
Update Can I Use dump.

4.0.2¶ ↑

Remove o-border-radius, which is common mistake in legacy CSS.

4.0.1.1¶ ↑

Use PostCSS 3.0.5 to parse complicated cases of CSS syntax.
Update Can I Use dump.

4.0.1¶ ↑

Fix @supports support with brackets in values (by Vincent De Oliveira).
Fix Windows support (by Kamen Hursev).

4.0.0.1¶ ↑

Update PostCSS to fix issue with empty comment.

4.0 “Indivisibiliter ac Inseparabiliter”¶ ↑

Become 2.5 times fatser by new PostCSS 3.0 parser.
Do not remove outdated prefixes by remove: false option.
map.inline and map.sourcesContent options are now true by default.
Add box-decoration-break support.
Do not add old -webkit- prefix for gradients with px units.
Use previous source map to show origin source of CSS syntax error.
Use from option from previous source map file field.
Set to value to from if to option is missing.
Trim Unicode BOM on source maps parsing.
Parse at-rules without spaces like @import"file".
Better previous sourceMappingURL annotation comment cleaning.
Do not remove previous sourceMappingURL comment on map.annotation: false.

3.1.2¶ ↑

Update Firefox ESR version from 24 to 31.

3.1.1¶ ↑

Use Flexbox 2009 spec for Android stock browser < 4.4.

3.1 “Satyameva Jayate”¶ ↑

Do not remove comments from prefixed values (by Eitan Rousso).
Allow Safari 6.1 to use final Flexbox spec (by John Kreitlow).
Fix filter value in transition in Webkits.
Show greetings in Rake task if your browsers don’t require any prefixes.
Add <= and < browsers requirement (by Andreas Lind).

3.0.1¶ ↑

Update Can I Use data.

3.0 “Liberté, Égalité, Fraternité”¶ ↑

All methods now receive browsers as options key, not separated argument.
GNU format for syntax error messages from PostCSS 2.2.

2.2.20140804¶ ↑

Fix UTF-8 support in inline source maps.
Allow to miss from and to options in inline source maps.
Update Can I Use data.

2.2 “Mobilis in mobili”¶ ↑

Allow to disable Autoprefixer for some rule by control comment.
Use PostCSS 2.1 with Safe Mode option and broken source line in CSS syntax error messages.

2.1.1¶ ↑

Fix -webkit-background-size hack for contain and cover values.
Don’t add -webkit- prefix to filter with SVG (by Vincent De Oliveira).

2.1 “Eleftheria i thanatos”¶ ↑

Add support for clip-path and mask properties.
Return -webkit- prefix to filter with SVG URI.

2.0.2¶ ↑

Add readable names for new browsers from 2.0 release.
Don’t add -webkit- prefix to filter with SVG URI.
Don’t add -o- prefix 3D transforms.

2.0.1¶ ↑

Save declaration style, when clone declaration to prefix.

2.0 “Hongik Ingan”¶ ↑

Based on PostCSS 1.0. See options changes.
Restore visual cascade after declaration removing.
Prefix declareation in @supports at-rule conditions.
Add all browsers from Can I Use: ie_mob, and_chr, and_ff, op_mob and op_mini.

1.3.1¶ ↑

Fix gradient hack, when background property contains color.

1.3 “Tenka Fubu”¶ ↑

Add text-size-adjust support.
Add background-size to support Android 2.
Update Can I Use data.

1.2 “Meiji”¶ ↑

Use Can I Use data from official caniuse-db npm package.
Change versions to x.x.x.y, where x.x.x is Autoprefixer npm version and y is a caniuse-db date.

1.1 “Nutrisco et extingo”¶ ↑

Add source map annotation comment support.
Add inline source map support.
Autodetect previous inline source map.
Fix source maps support on Windows.
Fix source maps support in subdirectory.
Prefix selector even if it is already prefixed by developer.
Change CSS indentation to create nice visual cascade of prefixes.
Fix flexbox support for IE 10 (by Roland Warmerdam).
Better break-inside support.
Fix prefixing, when two same properties are near.

20140222:¶ ↑

Add touch-action support.

20140226:¶ ↑

Chrome 33 is moved to released versions.
Add Chrome 36 data.

20140302:¶ ↑

Add text-decoration-* properties support.
Update browsers usage statistics.
Fix cascade options without browsers option (by Dominik Porada).
Use new PostCSS version.

20140319:¶ ↑

Check already prefixed properties after current declaration.
Normalize spaces before already prefixed check.
Firefox 28 is moved to released versions.
Add Firefox 31 data.
Add some Blackberry data.

20140327:¶ ↑

Don’t use -ms-transform in @keyframes, because IE 9 doesn’t support animations.
Update BlackBerry 10 data.

20140403:¶ ↑

Update browsers usage statistics.
Opera 20 is moved to released versions.
Add Opera 22 data.

20140410:¶ ↑

Chrome 34 is moved to released versions.
Add Chrome 37 data.
Fix Chrome 36 data.

20140429:¶ ↑

Fix display: inline-flex support by 2009 spec.
Fix old WebKit gradient converter (by Sergey Belov).

20140430:¶ ↑

Separate 2D and 3D transform prefixes to clean unnecessary -ms- prefixes.
Firefox 29 is moved to released versions.
Add Firefox 32 data.

20140510¶ ↑

Do not add -ms- prefix for transform with 3D functions.
Update browsers global usage statistics.

20140512¶ ↑

Remove unnecessary -moz- prefix for wavy in text-decoration.
Update Safari data for font properties.

20140521¶ ↑

Chrome 36 is moved to released versions.
Add Chrome 38 data.

20140523¶ ↑

Opera 21 is moved to released versions.
Add Opera 23 data.

20140605¶ ↑

Allow to parse gradients without space between color and position.
Add iOS 8, Safari 8 and Android 4.4.3 data.
Update browsers usage statistics.

1.0 “Plus ultra”¶ ↑

Source map support.
Save origin indents and code formatting.
Change CSS parser to PostCSS.
Keep vendor hacks, which does right after unprefixed property.
Show syntax errors if fixed sass-rails version if used.
Rename compile() to process() and return result object, instead of CSS string.
Rename inspect() to info().
Allow to select last versions for specified browser.
Add full browser names aliases: firefox, explorer and blackberry.
Ignore case in browser names.
Change license to MIT.
Add prefixes inside custom at-rules.
Add only necessary prefixes to selector inside prefixed at-rule.
Safer backgrounds list parser in gradient hack.
Prefix @keyframes inside @media.
Don’t prefix values for CSS3 PIE properties.
Use browserify to build standalone version.

20131225:¶ ↑

Add ::placeholder support for Firefix >= 18.
Fix vendor prefixes order.

20140103:¶ ↑

Add webkit prefix for sticky position.
Update browsers popularity statistics.

20140109:¶ ↑

Add selectors and at-rules sections to debug info.
Fix outdated prefixes cleaning.

20140110:¶ ↑

Add Firefox ESR browser requirement.
Opera 18 is moved to released versions.
Add Opera 20 data.

20140117:¶ ↑

Chrome 32 is moved to released versions.
Add Opera 34 data.

20140130:¶ ↑

Fix flexbox properties names in transitions.
Add Chrome 35 and Firefox 29 data.

20140203:¶ ↑

Android 4.4 stock browser and Opera 19 are moved to released versions.
Add Opera 21 data.
Update browsers usage statistics.

20140213:¶ ↑

Add case insensitive to IE’s filter hack (by Dominik Schilling).
Improve selector prefixing in some rare cases (by Simon Lydell).
Firefox 27 is moved to released versions.
Add Firefox 30 data.

0.8 “Unbowed, Unbent, Unbroken”¶ ↑

Add more browsers to defaults (“> 1%, last 2 versions, ff 17, opera 12.1” instead of just “last 2 browsers”).
Keep vendor prefixes without unprefixed version (like vendor-specific hacks).
Convert gradients to old WebKit syntax (actual for Android 2.3).
Better support for several syntaxes with one prefix (like Flexbox and gradients in WebKit).
Add intrinsic and extrinsic sizing values support.
Remove never existed prefixes from common mistakes (like -ms-transition).
Add Opera 17 data.
Fix selector prefixes order.
Fix browser versions order in inspect.

20130903:¶ ↑

Fix old WebKit gradients convertor on rgba() colors.
Allow to write old direction syntax in gradients.

20130906:¶ ↑

Fix direction syntax in radial gradients.
Don’t prefix IE filter with modern syntax.

20130911:¶ ↑

Fix parsing property name with spaces.

20130919:¶ ↑

Fix processing custom framework prefixes (by Johannes J. Schmidt).
Concat outputs if several files compiled to one output.
Decrease standalone build size by removing unnecessary Binary class.
iOS 7 is moved to released versions.
Clean up binary code (by Simon Lydell).

20130923:¶ ↑

Firefox 24 is moved to released versions.

20131001:¶ ↑

Add support for grab, grabbing, zoom-in and zoom-out cursor values.

20131006:¶ ↑

Chrome 30 is moved to released versions.

20131007:¶ ↑

Don’t add another prefixes in rule with prefixed selector.

20131009:¶ ↑

Opera 17 is moved to released versions.

20131015:¶ ↑

Fix converting multiple gradients to old webkit syntax (by Aleksei Androsov).

20131017:¶ ↑

Fix @host at-rule parsing.

20131020:¶ ↑

IE 11 and Andrid 4.3 is moved to released versions.
Add Opera 18 data.
Add @namespace support.
Sort browser versions in data file.

20131029:¶ ↑

Add Safari 6.1 data.
Add fx alias for Firefox.

20131104:¶ ↑

Update Android future version to 4.4.
Google Chrome 32 added to future versions list.
Firefox 25 now is actual version, 27 and 28 added to future versions.
Browsers statistics are updated.

20131205:¶ ↑

Google Chrome 33 added to future releases list.
Google Chrome 31 moved to current releases list.

20131209:¶ ↑

Fix Autoprefixer initializer on Heroku (by Jason Purcell).
Use old webkit gradients for old iOS and Safari (by Chad von Nau).
Fix direction conversion for old webkit gradients (by Chad von Nau).
Update browsers popularity statistics.

20131213:¶ ↑

Firefox ESR in default browsers was changed to 24 version.
Firefox 26 was moved to current releases list.
Firefox 28 was added to future releases list.

0.7 “We Do Not Sow”¶ ↑

Add vendor prefixes to selectors.
Add ::selection and ::placeholder selectors support.
Allow to load support data from Can I Use pull requests.
Remove deprecated API.

20130806:¶ ↑

Add hyphens support.

20130807:¶ ↑

Add tab-size support.
Add :fullscreen support.

20130808:¶ ↑

Allow to select browser versions by > and >= operator.
Fix flex properties in transition.

20130810:¶ ↑

Add Firefox 25 data.

20130824:¶ ↑

Add Chrome 31 and 30 data.
Fix CSS comments parsing (by vladkens).

0.6 “As High As Honor”¶ ↑

New faster API, which cache preprocessed data. Old API is deprecated.
A lot of perfomance improvements.
Add Opera 15 -webkit- prefix support.
Update Chrome 29 and Safari 7 prefixes data.
Add minor browsers in popularity select.
Better syntax error messages.

20130721:¶ ↑

Add Chrome 30 data.

20130728:¶ ↑

Don’t remove non-standard -webkit-background-clip: text.
Don’t remove IE hack on CSS parse.
Fix loading into Rails without Sprockets.

20130729:¶ ↑

Add Opera 16 data.
Fix “Invalid range in character class” error on JRuby.

20130730:¶ ↑

Fix correct clone comments inside keyframes (by Alexey Plutalov).
Fix angle recalculation in gradients (by Roman Komarov).

20130731:¶ ↑

Add border-image support.

0.5 “Ours is the Fury”¶ ↑

Rewrite Autoprefixer to be more flexible.
Use css, instead of Rework, to fix CSS parsing errors faster.
Fix a lot of CSS parsing errors.
Fix sass-rails 4.0.0.rc2 compatibility.

20130616:¶ ↑

More useful message for CSS parsing errors.
Remove old WebKit gradient syntax.
Fix parsing error on comment with braces.

20130617:¶ ↑

Remove old Mozilla border-radius.
Don’t prefix old IE filter.
Remove old background-clip, background-size and background-origin prefixes.
Speed up regexps in values.
Allow to hack property declarations.

20130625:¶ ↑

Convert flexbox properties to 2009 and 2012 specifications.
Add support for sass-rails 4 final.

20130626:¶ ↑

Add Firefox 24 data.
Add prefixes for font-feature-settings.

20130629:¶ ↑

Fix convert flex properties to old box-flex.
Fix Sinatra (sprockets-sass) suuport.

0.4 “Winter Is Coming”¶ ↑

Remove outdated prefixes.
Add border-radius and box-shadow properties to database.
Change degrees in webkit gradients.

20130515:¶ ↑

Add old syntax in gradient direction.
Add old syntax for display: flex.
Update browser global usage statistics.

20130521:¶ ↑

Add Firefox 23 data.
Update css-parse to fix @-moz-document issue.

20130523:¶ ↑

Update Rework’s libraries to fix @page statement.

20130524:¶ ↑

Add Chrome 29 data.

20130527:¶ ↑

Fix new css-stringify issue.

20130528:¶ ↑

Fix compatibilty with Rework from git master.
Add minor browsers to data, which can be selected only directly.

20130530:¶ ↑

Add Opera 15 and iOS 6.1 data.
Fix iOS versions in properties and values data.

20130603:¶ ↑

Use latest Rework 0.15 with a lot of CSS parsing fixes.
Update browsers usage statistics.

0.3 “Growing Strong”¶ ↑

Use own filters instead of Rework’s prefix and prefixValue.
Smarter value prefixer without false match “order” in “border”.
40% faster.
Don’t add unnecessary properties instead of Rework’s prefixValue.
Don’t change properties order.
Sort properties and values in inspect output.

20130424:¶ ↑

Fix value override in prefixer.

20130427:¶ ↑

Prefix several same values in one property.

20130502:¶ ↑

Don’t add -webkit- prefix to IE filter.
Don’t duplicate already prefixed rules.

0.2 “Hear Me Roar!”¶ ↑

Update parse libraries.
Add inspect method and rake tast.

0.1 “Fire and Blood”¶ ↑

Initial release.