- Introduced several new language and library features, including allowing `unsafe` on modules, expanded C linking flags, new trait implementations (e.g., `io::Write` for child stdio streams, `TryFrom<Vec<T>>` for arrays), and const‑fn pro...
- Enhanced Rustdoc with intra‑doc linking syntax and support for `#[doc(alias = "…")]` to improve documentation discoverability.
- Made compatibility and safety changes: tightened const‑fn promotion rules, `mem::uninitialized` now panics on non‑zero‑init types, stricter errors for ineffective `target_feature` attributes, and foreign exceptions now abort via `catch_u...
Rust 1.48.0
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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.