I've just uploaded RMagick 1.13.0 to RubyForge. Here's a summary of the changes:
o Installable with RubyGems 0.9.0
o Added Image#auto_orient and Image#auto_orient!. This method uses the EXIF
orientation tag to automatically orient an image (suggestion from John Oordopjes)
o Added Image#transform and #transverse, and their in-place equivalents.
o Added Image#adaptive_sharpen and #adaptive_sharpen_channel
o Added Image#radial_blur_channel
o Fixed bug #4806, add Pixel#hash and #eql? methods (bug report from
Tim Pease)
o Fixed bug #4821, correct the documentation for Image#rotate (bug report
from Tim Pease)
o Many other documentation fixes and updates
If you plan on installing this version with RubyGems please read the Release Notes (http://rubyforge.org/frs/shownotes.php?release_id=5815) before installing this release.
If you're using a web hosting service and it has a very old version of RMagick installed, please consider asking your service provider to upgrade. I've fixed several memory leaks in recent releases so if you're running into memory usage problems with your web app upgrading could really pay off.
RMagick is available as always from RubyForge: http://rubyforge.org/projects/rmagick/.
RMagick is an interface to the ImageMagick (www.imagemagick.org) and GraphicsMagick (www.graphicsmagick.org) image processing libraries. RMagick supports more than 90 image formats, including GIF, JPEG, PNG. It includes RVG, a 2D drawing API. RMagick comes with comprehensive HTML documentation.