This release adds trait upcasting, get_disjoint_mut on slices and hashmaps, #[target_feature] for safe functions, debug assertions for null pointers, Vec::pop_if, and more!
Rustup 1.28.0 has been released with many improvements. ✨
For those using rustup in CI: Note that rustup will no longer automatically install the toolchain from `rust-toolchain.toml`. Make sure to run `rustup toolchain install` if necessary.