- Stabilized many standard library APIs (e.g., BinaryHeap::append, BTreeMap::split_off, Iterator::sum/product, numeric to_degrees/to_radians) and added new language features like nested cfg attributes, macro invocations at block end, and m...
- Cargo received numerous enhancements: Windows console color support, cdylib crate type, disallow publishing dirty crates, improved warnings, and better autocompletion and documentation handling.
- Security and performance updates include switching the default HashMap hasher to SipHash‑1‑3 for faster hashing with adequate collision protection, and caching projections to speed up type checking.
Rust 1.11.0
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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.