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assetic/framework

Asset Management for PHP

v3.2.2 1.6M downloads/mo #4210 most downloaded on Packagist assetic-php/assetic

What this package is like to depend on

Last release 9 days ago

14 Aug 2026

Ships unpredictably

gaps range from 8 days to 1.7 years

Most releases are documented

notes for 22 of 29 stable releases

Nothing withdrawn

no release was ever pulled

14 years old

35 releases · first in 2012

6 releases in the last 12 months

see the full history below

Release timeline

35 releases · Mar 2012 to Aug 2026
2013 2015 2017 2019 2021 2023 2025
Release Pre-release

Releases

latest 35
  1. v3.2.2 14 Aug 2026
    Release notes

    What's Changed

    • Make CssImportFilter hashable so the asset cache can key it by @LukeTowers in #52

    Full Changelog: v3.2.1...v3.2.2

    Open source →
    Release notes

    Bug fixes

    • CssImportFilter now implements HashableInterface, so it is hashed instead of serialized when AssetCache builds its cache key. Serializing the filter threw Serialization of 'Closure' is not allowed whenever an import validator had been set.
      • The hash covers the inner import filter and the import validator, so filters confining imports to different paths no longer share a cache entry.
      • Cache keys for assets filtered by CssImportFilter change with this release, so those assets are rebuilt once on upgrade.
    Open source →
  2. v3.2.1 26 Jul 2026
    Release notes

    What's Changed

    • Add optional import validator to CssImportFilter by @LukeTowers in #51

    Full Changelog: v3.2.0...v3.2.1

    Open source →
    Release notes

    New features

    • Added an optional import validator to CssImportFilter, letting consumers confine @import inlining to trusted paths, by @LukeTowers in https://github.com/assetic-php/assetic/pull/51
    Open source →
  3. v3.2.0 20 Jun 2026
    Release notes

    What's Changed

    Full Changelog: v3.1.6...v3.2.0

    Open source →
    Release notes

    New features

    • Added support for Twig 3 alongside Twig 2 by @austinderrick in https://github.com/assetic-php/assetic/pull/49
    • Added support for the Tailwind CSS CLI v4 by @bennothommo in https://github.com/assetic-php/assetic/pull/50

    Community updates

    • Added PHP 8.4 and 8.5 to the test matrix and updated the CI workflow to the Node 20 actions by @austinderrick in https://github.com/assetic-php/assetic/pull/48
    Open source →
  4. v3.1.6 04 Jun 2026
    Release notes

    What's Changed

    • fix: resolve PHP 8.4/8.5 deprecations in HttpAsset and BasePhpFormulaLoader by @austinderrick in #47

    New Contributors

    Full Changelog: v3.1.5...v3.1.6

    Open source →
    Release notes

    Bug fixes

    • Resolved PHP 8.4 / 8.5 deprecation notices in HttpAsset and BasePhpFormulaLoader by @austinderrick in https://github.com/assetic-php/assetic/pull/47
    Open source →
  5. v3.1.5 23 Apr 2026
    Release notes

    What's Changed

    • Allow access to the Reference name and the resolved asset by @dlundgren in #18

    New Contributors

    Full Changelog: v3.1.4...v3.1.5

    Open source →
    Release notes

    New features

    • Added AssetReference::getName() and AssetReference::getAsset(), exposing the reference name and the asset it resolves to, by @dlundgren in https://github.com/assetic-php/assetic/pull/18
    Open source →
  6. v3.1.4 22 Apr 2026
    Release notes

    What's Changed

    • fix(asset): migrate from $http_response_header to http_get_last_response_headers() by @matteotrubini in #46

    New Contributors

    Full Changelog: v3.1.3...v3.1.4

    Open source →
    Release notes

    Bug fixes

    • HttpAsset now reads response headers via http_get_last_response_headers() instead of the $http_response_header local, which PHP 8.4 deprecates, by @matteotrubini in https://github.com/assetic-php/assetic/pull/46

    Changes

    • Added audit configuration to composer.json
    • Fixed the test suite against current dependencies
    Open source →
  7. v3.1.3 01 Feb 2025
    Release notes

    What's Changed

    New Contributors

    Full Changelog: v3.1.2...v3.1.3

    Open source →
    Release notes

    Bug fixes

    • Resolved PHP 8.4 deprecation notices for implicitly nullable parameters throughout the codebase by @TomA-R in https://github.com/assetic-php/assetic/pull/45
    Open source →
  8. v3.1.2 14 Jul 2024
    Release notes

    What's Changed

    • Add Tailwind CSS Standalone CLI utility filter by @bennothommo in #42
    • Allow "symfony/deprecation-contracts": "^2.2.0|^3.0" by @10n in #43

    New Contributors

    • @10n made their first contribution in #43

    Full Changelog: v3.1.1...v3.1.2

    Open source →
    Release notes

    New features

    • Added the Tailwind CSS Standalone CLI utility filter by @bennothommo in https://github.com/assetic-php/assetic/pull/42

    Changes

    • Widened the symfony/deprecation-contracts constraint to ^2.2.0|^3.0 by @10n in https://github.com/assetic-php/assetic/pull/43
    Open source →
  9. v3.1.1 05 Jul 2024
    Release notes

    Changes

    • Conform codebase to PSR-12 code style guidelines
    • Update wikimedia/less.php from 3.0 to 5.x for tests by @Krinkle in #38

    Bug fixes

    • 8 character color hex codes (with alpha channel) are no longer minified to 3 character hex codes in StylesheetFilter, these are instead minified to 4 characters.
    • The MockAsset asset has been switched to using contracts for typehints and return types.

    Community updates

    New Contributors

    Full Changelog: v3.1.0...v3.1.1

    Open source →
    Release notes

    Changes

    • Conform codebase to PSR-12 code style guidelines
    • Update wikimedia/less.php from 3.0 to 5.x for tests by @Krinkle in https://github.com/assetic-php/assetic/pull/38

    Bug fixes

    • 8 character color hex codes (with alpha channel) are no longer minified to 3 character hex codes in StylesheetFilter, these are instead minified to 4 characters.
    • The MockAsset asset has been switched to using contracts for typehints and return types.

    Community updates

    • Combine and consistently format the changelog by @bennothommo in https://github.com/assetic-php/assetic/pull/39
    Open source →
  10. v3.1.0 03 Apr 2024
    Release notes

    What's Changed

    • Re-added TwigFormulaLoader by @bds-viktoras in #37
    • Added support for symfony/console v7
    • Skipped tests for Google Closure Compiler REST API filter, it has been deprecated by Google
    • Added support for TypeScript v5

    New Contributors

    Full Changelog: v3.0.2...v3.1.0

    Open source →
    Release notes

    New features

    • Added support for TypeScript v5
    • Added support for symfony/console v7

    Changes

    • Re-added TwigFormulaLoader
    • Skipped tests for Google Closure Compiler REST API filter, it has been deprecated by Google
    Open source →
  11. v3.0.2 07 Jul 2022
    Release notes

    Changes

    • The Assetic Twig Extension is now compatible with Twig version 3
    Open source →
  12. v3.0.1 09 May 2022
    Release notes

    Bug fixes

    • Fixed issue with StylesheetMinifyFilter where a universal selector (*) could not immediately follow a comment.
    Open source →
  13. v3.0.0 22 Feb 2022
    Release notes

    Assetic v3 is another refresh of the project in order to keep the core lean and up to date with modern standards. More deprecated / abandoned filters have been removed and replaced with modern maintained alternatives.

    New filters are still recommended to be added in external packages and the core is to be kept as minimal as possible.

    New features

    • Support for PHP 8.0 & PHP 8.1
    • Support for symfony/process: v6.x
    • Added Assetic\Filter\JavaScriptMinifierFilter
    • Added Assetic\Filter\CSSMinFilter
    • Added Assetic\Filter\StylesheetMinfyFilter

    Backwards-compatibility breaks

    • Minimum PHP version required is now PHP 7.3
    • Removed support for the unmaintained mrclay/minify, patchwork/jsqueeze, & natxet/CssMin packages in favour of wikimedia/minify.

    Removed filters

    • JSMinFilter (use JavaScriptMinifierFilter instead)
    • JSMinPlusFilter (use JavaScriptMinifierFilter instead)
    • JSqueezeFilter (use JavaScriptMinifierFilter instead)
    • CssMinFilter (use CssImportFilter combined with the CSSMinFilter instead)
      • Abandoned for all intents and purposes; maintainer has not interacted with the project for four years at least, not even able to maintain the package in the first place (https://github.com/natxet/CssMin/issues/23#issuecomment-257352700).
      • Several long standing unresolved bugs in relatively common CSS use cases
    • MinifyCssCompressorFilter (use replacement for CssMinFilter above or use StylesheetMinifyFilter instead)
      • Abandoned, see: https://github.com/mrclay/minify/commit/0bc376980248f421c50b039beb869dd46cd9b043
      • Considered replacing with https://github.com/tubalmartin/YUI-CSS-compressor-PHP-port (last touched in 2018) but it is not fully supported in PHP 7.4: https://github.com/tubalmartin/YUI-CSS-compressor-PHP-port/issues/57 & is abandoned for all intents and purporses; maintainer has not interacted with the project for four years at least and maintainer seems to no longer be working with PHP in general.
    Open source →
  14. v2.0.2 26 Jan 2022
    Release notes

    Bug fixes

    • Fixes an issue with aliases when run with the Opcache Preloader from PHP 7.4+
    • Fix usage of deprecated behaviours and methods in SCSS PHP filter
      • Adds additional argument for registerFunction method to define argument declarations
      • Uses compileString() method for compilation as opposed to deprecated compile() method
      • Uses addVariables() method for defining variables as opposed to deprecated setVariables() method
      • Parses variables provided in the setVariables() filter method and converts to Scss values, avoiding the deprecated behavior of allowing raw variables
    Open source →
  15. v2.0.1 30 Jun 2021
    Release notes

    Changes

    • Added PHP 8 support
    • Removed support for scss_compass, which was never actually finished in the first place
    Open source →
  16. v2.0.0 11 Oct 2020
    Release notes

    Project update

    The project kriswallsmith/assetic is currently unmaintained, and has not been updated in 4 years. You can replace kriswallsmith/assetic by swapping it out for "assetic/framework": "~2.0.0" via composer.

    This fork aims to bring Assetic up to date with modern libraries and allow for it to be used in conjunction with modern frameworks.

    This update makes the project more opionated, removing duplicate filters in favour of purely PHP-based ones. New filters are to be added in external packages and the core is to be kept as minimal as possible.

    As part of this update old, abandoned or redundant utilities have been removed. This is in part to simplify the offering of project as well as to migrate to a simplified tool set of php and javascript based utilities.

    New features

    • Support for >=php 7.2
    • Support for symfony/process v3.4.x | v4.x | v5.x

    Backwards-compatibility breaks

    • Minimum PHP version required is now PHP 7.2
    • Switching from leafo/lessphp to wikimedia/less.php
      • Due to this switch support has been dropped for setPreserveComments & registerFunction by the LessphpFilter.
    • twig/twig support is optional now, twig/extensions must be required in your requirements if you need it.

    Removed filters

    • apc cache (apc is no longer supported in php7.2)
    • autoprefixer (autoprefixer cli is deprecated)
    • cleancss (code is incompatible with the current API)
    • CssEmbed
    • Compass
    • Dart
    • ember precompile (the npm package no longer compiles)
    • Gemfile (Ruby is no longer in use in the project)
    • GSS
    • Packager (throws deprecation notices in php7.4)
    • pngout (npm package is abandoned)
    • Roole (Roole was a language that compiles to CSS, the project is now dead and has been for at least 6 years, use LESS \ SCSS instead)
    • SassFilter/ScssFilter/SassphpFilter (replaced by ScssphpFilter)
    • Sprockets (Assetic no longer integrates with Ruby packages)
    • UglifyJS version 1 (No longer supported. Use the Assetic\Filter\UglifyJs2Filter for version 2 or UglifyJs3Filter for version 3 instead)
    • Yui compressors
    Open source →
  17. v1.4.0 11 Nov 2016

    Nothing published for this version

  18. v1.3.2 12 Nov 2015

    Nothing published for this version

  19. v1.3.1 15 Oct 2015

    Nothing published for this version

  20. v1.3.0 31 Aug 2015

    Nothing published for this version

  21. v1.2.1 12 Dec 2014

    Nothing published for this version

  22. v1.2.0 14 Oct 2014
    Release notes

    New features

    • Added the autoprefixer filter
    • Added --no-header option for Coffeescript
    • Implemented the extraction of dependencies for the compass filter
    • Allow custom functions to be registered on the Lessphp filter
    • Added MinifyCssCompressor filter based on mrclay/minify
    • Added setVariables in the ScssPhpFilter
    • Improved the support of the compress options for UglifyJS2
    • Added CssCacheBustingFilter to apply cache busting on URLs in the CSS
    • Added support for --relative-assets option for the compass filter

    Bug fixes

    • Allow functions.php to be included many times
    • Updated the ScssPhpFilter for upstream class renaming
    Open source →
  23. v1.2.0-alpha1 08 Jul 2014 pre-release
    Release notes

    BC breaks

    • Added AssetFactory instance as second argument for WorkerInterface::process()
    • Removed LazyAssetManager from CacheBustingWorker constructor
    • A new getSourceDirectory() method was added on the AssetInterface
    • Removed limit and count arguments from CssUtils functions
    • Removed the deprecated PathUtils class

    New features

    • added CssUtils::filterCommentless()
    • Added DependencyExtractorInterface for filters to report other files they import
    • Added the support of nib in the stylus filter
    • Added registerFunction and setFormatter to the scssphp filter
    • Added the support of flag file for the ClosureCompilerJarFilter
    • Added the JsSqueeze filter
    • Added support of the define option for uglifyjs (1 & 2) filters
    • Added logging for Twig errors in the extractor

    Bug fixes

    • Fixed the detection of protocol-relative CSS imports
    • Updated AssetCollection to not add several time the same variable in path
    • Fixed the merging of the environment variables to keep the configuration of the NODE_PATH working
    • Fixed the support of {% embed %} in the Twig extractor
    • Fixed the support of asset variables in GlobAsset
    Open source →
  24. v1.1.3 12 Dec 2014

    Nothing published for this version

  25. v1.1.2 19 Jul 2013
    Release notes
    • Fixed deep mtime on asset collections
    • CallablesFilter now implements DependencyExtractorInterface
    • Fixed detection of "partial" children in subfolders in SassFilter
    • Restored PathUtils for BC
    Open source →
  26. v1.1.1 01 Jun 2013
    Release notes
    • Fixed cloning of asset collections
    • Fixed environment var inheritance
    • Replaced AssetWriter::getCombinations() for BC, even though we don't use it
    • Added support for @import-once to Less filters
    Open source →
  27. v1.1.0 16 May 2013
    Release notes
    • Added LazyAssetManager::getLastModified() for determining "deep" mtime
    • Added DartFilter
    • Added EmberPrecompile
    • Added GssFilter
    • Added PhpCssEmbedFilter
    • Added RooleFilter
    • Added TypeScriptFilter
    • Added the possibility to configure additional load paths for less and lessphp
    • Added the UglifyCssFilter
    • Fixed the handling of directories in the GlobAsset. #256
    • Added Handlebars support
    • Added Scssphp-compass support
    • Added the CacheBustingWorker
    • Added the UglifyJs2Filter
    Open source →
  28. v1.1.0-beta1 13 May 2013 pre-release

    Nothing published for this version

  29. v1.1.0-alpha4 24 Feb 2013 pre-release

    Nothing published for this version

  30. v1.1.0-alpha3 18 Feb 2013 pre-release

    Nothing published for this version

  31. v1.1.0-alpha2 31 Jan 2013 pre-release

    Nothing published for this version

  32. v1.1.0-alpha1 28 Aug 2012 pre-release
    Release notes
    • Added pure php css embed filter
    • Added Scssphp support
    • Added support for Google Closure language option
    • Added a way to set a specific ruby path for CompassFilter and SassFilter
    • Ensure uniqueness of temporary files created by the compressor filter. Fixed #61
    • Added Compass option for generated_images_path (for generated Images/Sprites)
    • Added PackerFilter
    • Add the way to contact closure compiler API using curl, if available and allow_url_fopen is off
    • Added filters for JSMin and JSMinPlus
    • Added the UglifyJsFilter
    • Improved the error message in getModifiedTime when a file asset uses an invalid file
    • Added support for asset variables:

      Asset variables allow you to pre-compile your assets for a finite set of known variable values, and then to simply deliver the correct asset version at runtime. For example, this is helpful for assets with language, or browser-specific code.

    • Removed the copy-paste of the Symfony2 Process component and use the original one
    • Added ability to pass variables into lessphp filter
    • Added google closure stylesheets jar filter
    • Added the support of --bare for the CoffeeScriptFilter
    Open source →
  33. v1.0.5 12 Dec 2014

    Nothing published for this version

  34. v1.0.4 28 Aug 2012
    Release notes
    • Fixed the Twig tag to avoid a fatal error when left unclosed
    • Added the HashableInterface for non-serialiable filters
    • Fixed a bug for compass on windows
    Open source →
  35. v1.0.3 03 Mar 2012
    Release notes
    • Added "boring" option to Compass filter
    • Fixed accumulation of load paths in Compass filter
    • Fixed issues in CssImport and CssRewrite filters
    Open source →

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