Version 4.0.0 - Jan 31, 2021
- Java 8 target
- Support for multi-value properties
- New background property API
- Some parser fixes

Version 3.5 - Nov 1, 2019
- Fixed processing of counter-related properties

Version 3.4 - Oct 30, 2019
- More efficient logging
- Fixed named color value creation

Version 3.3 - May 24, 2019
- New typed representation of CSS functions
- Added missing grid and flexbox properties and functions
- Keyframes support added
- Animations and transitions support
- Many parser fixes (at-rules, vendor prefixes, bracketed identifiers, ...)

Version 3.2 - Jan 29, 2018
- Improved font-face rule support
- Unknown pseudo classes are correctly skipped

Version 3.1 - Oct 13, 2017
- Removed java.awt bindings for better compatibility with Android (and other platforms)

Version 3.0 - Sep 7, 2017
- Default value processing: initial and unset
- Color processing changes: currentColor support
- Correct overflow-x and overflow-y handling
- Calculated values: calc() function support
- box-sizing property support
- flexbox properties support
- Minor error handling fixes

Version 2.1 - Dec 21, 2016
- API extensions: allow custom declaration transformers
- Pseudo element processing fix

Version 2.0 - Sep 7, 2016
- New ANTLR4 based parser
- Significant error recovery improvements

Version 1.23 - Jul 8, 2016
- @charset processing fix
- Minor fixes in media query matching

Version 1.22 - Jan 28, 2016
- A generic ElementMatcher mechanism for implementing alternative ways
  of selector to element matching
- Ready to use element matchers for XHTML, HTML-standard and HTML-quirks mode
- New 'transform' and 'transform-origin' properties supported
- Property inheritance fixes
- Avoid negative zeroes in CSS floating point values
- Style sheet @import fixed

Version 1.21 - Nov 5, 2015
- Significant grammar extensibility improvements
- CSS escaping properly supported
- Pseudo-selector processing optimizations
- ID selector matching fixes
- Several new properties supported (tab-size, overflow-x/y)
- Text output formatting fixes

Version 1.20 - Jan 13, 2015
- API change: use parseString(String, URL) instead of parse(String)
- More efficient and stateles rule sorting (removes PriorityStrategy mechanism)
- Custom NetworkProcessor mechanism for handling URL resources
- Fix exceptions during dimension value creation
- Fix exceptions in malformed index selectors
- basic background-size support

Version 1.19 - Nov 6, 2014
- Allow element.getAttribute() to return null for supporting more DOM parsers
- Line height processing fix
- background-position processing fix
- Attribute selector matching fix (whitespace processing)
- Allow unary + in numeric values
- Several DirectAnalyzer fixes
- Properly unescape CSS strings (using unbescape)
- Support for MatchCondition at DOMAnalyzer level
- Distinguish pseudo classes (:) and pseudo elements (::) according to CSS3 Selectors
- Error recovery revision
- Many new test cases mainly for the reported bugs

Version 1.18 - Aug 28, 2014
- New CSS3 pseudo classes support
- Fix background-attachment and font-variant bugs
- Matching empty media queries in MediaSpec
- Property inheritance fixes
- Error recovery fixes (unknown at-rules)

Version 1.17 - Jul 11, 2014
- Media queries supported in parser and DOMAnalyzer
- API extensions for Media queries
- Extended API for configuring the automatic processing of imported style sheets 
- New CSS3 units supported (ch, rem, vw, vh, vmin, vmax, in, turn,
    dpi, dpcm, dppx)

Version 1.16 - Feb 4, 2014
- Rule priority computation fix for nested (@media) rules

Version 1.15 - Jan 9, 2014
- Project layout changed to maven
- Rewritten test resource reading
- clip: property changed to correspond the specification
- Base URL processing improved
- Error recovery fixes

Version 1.14 - Oct 26, 2013
- Pseudo class processing during DOM style computation
- Declaration source tracking
- Inheritance processing fixes
- Media matching improved
- Defalut values of height property fixed
- Direct analyzer updates

Version 1.13 - May 25, 2013
- Empty <style> tag parsing fix (fixes #18)
- Fixed the 'trasparent' typo (fixes #16)

Version 1.12 - Mar 27, 2013
- New CSS3 support
- @font-face, @page and @viewport rules supported
- CSS3 structured selectors supported
- CSS3 pseudo classes
- CSS3 colors and opacity support
- border-radius parsing
- Allow lengths with no units (fixes #9)
- Whitespace processing fix in attribute selectors
- Error recovery fixes

Version 1.11 - Jan 21, 2013
- Class matching fix
- Allow empty url() values
- Allow no terms in property declarations
- Error recovery improvements

Version 1.10 - Jan 14, 2013
- A background-position assignment fix in DOM analyzer

Version 1.9 - Nov 22, 2012
- A fallback TreeWalker implementation is used when Traversal is not supported by the DOM implementation
- Support for data: URLs in DOM analyzer
- Fixed using default values when some variated property value is missing

Version 1.8 - Sep 14, 2012
- Style sheet charset specification support
- @charset rule support
- Base URL propagation for URI terms
- Extended attribute selector support
- Better extensibility through custom DeclarationTransformer

Version 1.7 - Jun 8, 2012
- Significant performance improvements
- New DirectAnalyzer interface for direct element style computation

Version 1.6 - Jun 4, 2012
- Obtaining gzipped style sheets linked from DOM
- Support for multiple style sheets in DOM assignment
- Style sheet origin support
- Source stylesheet tracking in declarations (for stylesheet priority tracking)
- Support for per-element default style definition in the DOM tree using the proprietary XDefaultStyle attribute.
- Fixed base URI for nested imports
- Value type discovery fix

Version 1.5 - Nov 23, 2011
- Error recovery fixes
- Fixed pseudo-class name processing (double colon support)
- Fixed at-keyword name processing (leading dash)
- Small API update for allowing better extensibility (by Ron)

Version 1.4 - May 5, 2011
- Pseudo-elements and pseudo-classes supported.
- Many error recovery fixes. Nasty CSS hacks should be parsed as well.
- Fixes in property inheritance and parsing

Version 1.3 - Dec 3, 2009
- removed the jTidy dependency. Now any DOM Traversar capable DOM
  implementation may be used
- license changed to LGPLv3

Version 1.2 - Jul 23, 2009


Version 1.1 - Mar 02, 2009
- any contents in expression() supported
- correct handling of various CSS hacks
- vendor-specific properties supported

Version 1.0 - Dec 11, 2008 - First public release