Hi Murrejb,
The Pro version is a different plugin than the free version; it was released several cycles after free was launched. Pro version is brand new with a new version on the way. Definitely active development, it’s one of my favorite projects 🙂
Btw, the forums here are only for free plugins hosted at WordPress.org. If you have any further questions about pro versions, please contact directly, thanks!
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This reply was modified 7 years ago by Jeff Starr. Reason: added some infos