Announcing — Rust 1960

Building on previous async iterations, the compiler now completely optimizes dynamic dispatch for async traits.

Any memory allocated during this phase is tightly managed by the compiler. If a vector or string is dropped before the const evaluation finishes, the memory is freed instantly. If it persists into the final value, it is safely baked into the executable's read-only data segment. This eliminates runtime initialization overhead for complex static global data structures. Standardized async fn in Traits Without Limitations

To install Rust 1960, you do not need rustup . You need a time machine or a very understanding mainframe operator. announcing rust 1960

The panic! macro inside a const block now supports basic variable interpolation, making compile-time assertions drastically easier to debug. 2. Enhanced Diagnostic Engine

Macros are foundational to the Rust ecosystem, but debugging complex macro expansions has occasionally compromised developer velocity. Rust 1.96.0 introduces for declarative macros ( macro_rules! ). Building on previous async iterations, the compiler now

: Allows collecting items into a collection while short-circuiting if an error or None is encountered.

Furthermore, major industry partners continue to deepen their investment in memory safety. Google recently announced the integration of a into the modem firmware of the Pixel 10, specifically to mitigate critical memory vulnerabilities. The Rust 2024 Edition If it persists into the final value, it

For years, the "Borrow Checker" was seen as a hurdle to overcome. In Rust 1960, it has been evolved into the "Logic Assistant." The compiler now provides proactive suggestions not just for fixing errors, but for refactoring code to be more idiomatic and performant.

Rust 1.96.0 also brings improvements to the development experience and tooling.

Basic compile-time math operations ( + , - , * , / ) are now stabilized for f32 and f64 within constant declarations.