Today we’re releasing mozjpeg 3.0, featuring a return to ABI compatibility with libjpeg-turbo, compression improvements, deringing for black-on-white text, and a large number of other fixes and improvements.

Code written against earlier versions of the mozjpeg library will need to be updated, see notes here. While this might be a bit of a pain, it’s a worthwhile change because applications can now easily switch between mozjpeg and libjpeg-turbo.

Thanks to Frank Bossen, Kornel Lesi'nski, Derek Buitenhuis, and Darrell Commander for their help with this release.

Here’s hoping you enjoy smaller JPEG files in the new year!

https://boomswaggerboom.wordpress.com/2014/12/30/mozjpeg-3-0-released/