In reply to Summer.

I must admit I'd never seen that before, where a dev makes incremental changes to a plugin (noting them in the changelog), but doesn't increment the version number (say from 2.8 to 2.8.2 or something) and makes about a lot different changes but never changed the version number in the repository.

Another user in the support forums even made note in of the fact that a firewall flagged his plugin with a warning since the files in the repository were different. I think he finally made an official release update after that and has been more careful of changing files since then, but it just struck me as odd, making incremental changes in the repository files, but never incrementing the version numbers so that people's WP installs would let you know there was a plugin update.

That lack of update notice inside my WP site was what made me notice that I'd missed three months worth of updates he'd done simply because he didn't increment the version number and kick off whatever feature it is that lets folks know that a plugin update is available.

He seems to have modified that habit since 6 months ago or so, so moot point now.