Version 3.002 has added optimization in the build process which reduces some of the table sizes (mainly GPOS and GSUB) which also reduces the file sizes. This is important for web servers since speed is a factor.
File names (not internal font names) were also changed for this release. They are named Padauk-Regular.ttf, Padauk-Bold.ttf, PadaukBook-Regular.ttf and PadaukBook-Bold.ttf.
Download the release package from the Download Page.