Every time there's an update I have no idea what version it is or what has changed. It makes it hard to keep track of things if anything goes wrong.
This new version is like half the size of the old one in file size. That seems like a significant enough change.

Hey! Yesterday's update was a minor change to react to some submitted bugs and potential-bugs as I refactor the code base and respond to some feedback and suggestions. It also adds a couple new color palette options(Flipnote DSi, Flipnote 3DS). Currently the "build date" is the best way to identify which version you have , by right-clicking an instance of the plugin and going to "About", with the latest being September 8th!

You're correct though that I should make it easier to both identify your current build and see what's new when I push updates and I should try out the Dev Log feature more to communicate this better.