- Stabilized key language features: async fn returning impl Trait in traits, const‑fn pointer signatures, exhaustive usize/isize matching, guaranteed char size, partially moved values in match, and ratified RISC‑V target features.
- Compiler and library upgrades: refined coherence handling, alias bounds in NLL, automatic cross‑crate inlining, new tier‑3 targets, Waker::clone optimization, BufRead for VecDeque, IP address bitwise ops, Default for ExitCode, sub‑millis...
- Tooling and compatibility changes: Cargo auto‑adds workspace members and accepts version‑less manifests, rustdoc relaxes invalid Rust handling and improves ABI documentation, FreeBSD targets require version 12, misalignment becomes a har...
Rust 1.75.0
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Language: allow shortening lifetimes of &mut during unsize coercions and introduce new lints for invalid runtime symbols and c void return types.