The newer 2.7 Mobility Pro has more “relaxed” curved fingers. It also has a complete Blueprint character controller and IPC, so if your new download doesn’t have that(it also is “Create Project” only, no “Add”) you don’t have the new version.
Are the new fingers “relaxed” enough for you? That’s your call. I’ve thought of just making maybe five animation pose files with different versions of more and more curved, loose fist, fist, and a loose point, for example. Then everyone can just use which one(s) they like as additive.