Whatвђ™s New In Rust 1.47 May 2026

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Integer arithmetic operations like checked_add , saturating_sub , and checked_mul . What’s new in Rust 1.47

f32::TAU and f64::TAU : Added the mathematical constant ( ) for more intuitive circle-based calculations. Compare these changes with more recent versions like

Several new APIs were added to the stable standard library, including: including: ASCII character checks (e.g.

ASCII character checks (e.g., is_ascii_alphabetic , is_ascii_digit ).

Rust version 1.47.0, released on , was a focused update primarily delivering quality-of-life improvements, library stabilizations, and toolchain upgrades rather than major new language features. Key Language & Tooling Updates