3.1.2

• [^] Split dom related code out of handler.
• [^] Fix firefox can't scroll bug

3.1.1

• [^] Fix event handler can be bound twice bug.
• [^] Performance optimization. 2x ~ 3x faster in common case.
• [^] Add pattern
• [^] Layer clearColor support Gradient and Pattern.
• [^] Add hover layer
• [^] Support progressive rendering

3.1.0

• [^] Animation more robust for NaN value
• [^] VML improvement on arc drawing
• [^] Vertical align improvement when using some font like Microsoft Yahei.

3.0.9

• [+] Add Displayable#useStyle method to reset whole style object.
• [+] BezierCurve add tangentAt method.
• [^] Fix zero angle arc draw error on IE8.
• [^] Color gradient can be a plain object. Different path do not share canvas gradient instances.

3.0.8

• [^] Group add silent property
• [^] Fix VML dynamic path draw bug

3.0.7

• [^] Fix IE8 in some case circle can't draw

3.0.6

• [^] Fix bug of bounding box always been calculated
• [^] Fix numerical error when calculating bounding box of curve.
• [^] Fix vml painter

3.0.5

• [^] Quadratic curve winding bug fix in path

3.0.4

• Add textVerticalAlign for multiple lines text
• Fix mousewheel event on firefox
• Fix ignore bug in VML

3.0.3

• [^] Expose Handler#findHover
• [^] Fix bug in IE8 when text has percent position
• [^] Mouse position fix in IE8