Yep. That's how it works:
they start version number with the new digit, than they try to milk you again, and like try to sell you something else, like "...TechSmith's EnSharpen video codec is a perfect companion to Snapz Pro X for screen recordings, producing highly compressed, lossless quality QuickTime movies."
Does the new version do anything new? Nope! So, go ahed, pay, get upgrade, have fun! Enjoy!