Correct. The version number is independent of the chapter.
No problem. I know it's confusing, even to me. It honestly had me stopped and double-checking everything as I was pushing the updates to Itch. It's just the way my version numbering method and this particular update have aligned (or "mis-aligned").
Each time there is an update with new story content, the number goes up. Technical updates are a letter, and reset when there is new content. Probably better systems out there but it made sense when I started it a few years ago. 🤣