- The 2024 Edition is now stable, async closures are stabilized, and AsyncFn is added to the prelude across all editions.
- A large set of APIs (e.g., HashMap/HashSet with hasher, float utilities, const‑eval layout helpers) are now stable in const contexts.
- Breaking changes: the unstable `Zpolymorphize` flag is removed, `core::ffi::c_char` signedness changes on many Tier 2/3 targets, and the handling of the `test` cfg is revised.
Rust 1.85.0
Official Rust changelog summary with source attribution, release tags, and community reactions.
Track this Rust release note alongside related changelog updates, risky changes, and weekly digest signals from the developer community.
Verify the original release note
Every summary should remain traceable to the original changelog or release source.
Follow this in context
Turn this Rust release note into a weekly digest for the tools you actually use.
Create digestMore Rust changelog updates
Language: allow shortening lifetimes of &mut during unsize coercions and introduce new lints for invalid runtime symbols and c void return types.