This isn't the repository which runs on Lichess. The actual one does have much newer commits. Though not sure much fundamentally changed. Ultimately, I guess it does what it's supposed to do (catch obvious cheaters to save human time). But this is only one part of a lot of anti-cheating measures, including a lot more automated ones (some, like kaladin, which actually is a recent development, were also linked in the other thread about Lichess) but also a huge amount of human work. Most of the people here or in the other thread don't really know anything about cheating, how to properly detect it, and the difficulty of it.

Though ofc you're certainly right that this isn't a recent development at all and at the same time it's certainly also not perfect yet. And I doubt it ever will be. I don't think cheating in online chess is something that can ever really be solved completely.