Initial PEAR public release occured at end of July 2003.

Added the ability to parse CSS from string with HTML_CSS::parseString()

Added the ability to parse CSS from file with HTML_CSS::parseFile()

Added the ability to generate CSS and store it in a file with HTML_CSS::toFile()

Introduced error handling system with PEAR_ErrorStack.

Added unit tests with PHPUnit 1.x for API and bugs.

Retrieve the settings of individual properties

Introduced a new error handling system: PEAR_ErrorStack was replaced by a simple way to plug in any error handling system you might want (default used PEAR_Error object)

HTML_CSS::apiVersion() returns now a string rather than a float; compatible with php.version_compare().

Added the ability to parse multiple data sources (filename, string) at once with HTML_CSS::parseData()

Added the ability to identify if HTML_CSS API output returns an error with HTML_CSS::isError()

Introduces package xml 2.0 and drop support of package xml 1.0

Unified API arguments for all group functions

Klaus Guenther (first package leader) became inactive.

Added ability to search if an element/property is defined or not with HTML_CSS::grepStyle()

License changed from PHP 3.01 to BSD.

Manual license upgrades from version 2.0 to 3.0 of Creative Commons

Prevent invalid CSS data source in to be parse

Add Content-Disposition to the headers in display() Implement request 12195

Remove pointless NEWS file from distribution, clone of ChangeLog.

Upgrade requirement to PHP 4.3.0 and PEAR 1.5.4 (to avoid security vulnerability)

Coding Standard fixes: (errors/warnings) following recommandation by PHP_CodeSniffer

Unit test suites migrated from PHPUnit 1.x to 3.x

API 1.4.0 introduces new setter/getter PHP5 facility compatible (magic function __set, __get) for read/write CSS options.

Error handler allow now to use PEAR_ERROR_CALLBACK (local to HTML_CSS) to customize action when an error/exception is raised. No more need to use global PEAR::setErrorHandling.

Check validity of CSS data source to be parse using the W3C CSS validator service with help of package PEAR::Services_W3C_CSSValidator (require PHP5)

Ability to retrieve all options in effect at once with HTML_CSS::getOptions()

Add support of At-Rules Implement request 12194

Improve support of At-Rules. See bugs

• 16354 Does not parse multiple simple At-rules properly

• 16355 Simple at rules nested within other at rules are reported as top level at rules

• 16357 Multiple equal complex at rules not parsed correctly

• 16358 Multiple media types on media at rule not parsed correctly

• 16359 Multiple selectors on a single rule inside a complex at rule not properly parsed

• 16360 Multiple selectors inside a complex at rule not properly parsed

HTML_CSS::createAtRule() signature changed. Add optional duplicates parameter to allow to handle two or more instance of a same @charset or @import or @namespace At-Rule. See HTML_CSS_TestSuite_Standard::testCreateAtRuleWithManyDefinitions for example.