* Added support for CSS animations.
* Tuned HTTP idle connection logic for increased performance.
* Improved standards support for HTML5, XHR, MathML, SMIL, and canvas.
* Improved spell checking for some locales.
* WebGL content can no longer load cross-domain textures.
* Background tabs have setTimeout and setInterval clamped to 1000ms to improve performance.
* Fixed several stability issues.
* Fixed several security issues.
* Fixed several high visibility usability issues from SeaMonkey 2.1.