[bobbylarrybobby]

Yeah, not really. The only big changes to the language core were non lexical lifetimes, match ergonomics, lifetime elision, auto-deref, and async, although all of these are already so old now that I wouldn't consider them constituents of modern Rust; they're just (unqualified) Rust at this point.

Releases tend to bring some minor improvements like functions you wished had always existed or making non-const functions const, but that's pretty much it. Rust is a remarkably stable language.