Not mentioned, but the previous release's feature of capturing idents in format strings automatically did not work for `unreachable!`, ie `let x = 5; unreachabl

Not mentioned, but the previous release's feature of capturing idents in format strings automatically did not work for `unreachable!`, ie `let x = 5; unreachable!("{x}");` panicked with the message `"{x}"` instead of `"5"`. This is fixed in 1.59