There are currently no open bugs.

"pngquant" versions published in Ubuntu

Zesty (2.5.0-1build1): universe/graphics
Yakkety (2.5.0-1build1): universe/graphics
Xenial (2.5.0-1): universe/graphics
Vivid (2.3.0-1): universe/graphics
Trusty (2.0.1-1): universe/graphics
Precise (1.0-4.1): universe/graphics