Confused about versions

Hey, there, I’ve been using my old version Devonthink Personal for a long time now (it’s great for genealogy!) but when MacHeist had that Tweetblast, I grabbed the copy of DT they were offering, thinking it might be an upgrade.

Now I’m a little confused. My old copy is version 1.9.8, dated 2006. My new Tweetblast copy is version 1.9.16, dated 2008. Wouldn’t 1.9.8 be the most recent version, despite the date?

Or is the Tweeblast version #16 and my old version actually #8?

It’s an update. DT Personal 1.x had 8 updates since the version you have been using.

Thanks so much!