In that case, definition 4 should fit the bill. Reading the changelog gives a "false representation" on the complexity of the project.

All of these senses have the meaning, loosely, "to be in contradiction with"; my confusion was how any particular one of them applied, and which one. In a way, senses 4 and 7 are opposites: in one case it's the belier that's false, and in the other sense it's the thing belied.

Thanks for that, yes that is indeed the way I am using the word. A bit old-school perhaps...