2.4.1

• Fixed imagick compatibility checking #39

2.4.0

• Fix background issues on rotated images #36
• Added support for webp #37

2.3.2

Fixed a bug related with ->resize() using Gd library, that creates a weird black border.
Maybe it's related with https://bugs.php.net/bug.php?id=73281
Fixed not using imagescale(), but the same resize function used in imagecow v1.x)

2.3.1

• Fixed autoRotate().

2.3.0

• Added blur() function

2.2.1

• Fixed progressive option in Imagick #31

2.2.0

• Added the progressive option #29
• Fixed a bug that didn't return the correct width/height for animated gifs #30

2.1.6

• Fixed crop methods when $x and $y values are passed as integers.

2.1.5

• Used different modes in Gd to reduce or enlarge images (IMG_BICUBIC to reduce and IMG_BILINEAR_FIXED to enlarge).
• Destroy the previous image in GD on convert, to free memory usage.

2.1.4

• Fixed resizeCrop in GD when the original image is smaller
• Added experimental face detection by @aemr3 #25
• Fixed CROP_BALANCE