Whatвђ™s New In Rust 1.47 May 2026

Many existing methods were made const , allowing them to be used in constant contexts: The new method for all NonZero integers.

: The compiler was upgraded to LLVM 11 , which brought various performance improvements and better hardware support. What’s new in Rust 1.47

ASCII character checks (e.g., is_ascii_alphabetic , is_ascii_digit ). Many existing methods were made const , allowing

f32::TAU and f64::TAU : Added the mathematical constant ( ) for more intuitive circle-based calculations. Many existing methods were made const

Walk through how to enable on your Windows builds. What would be most helpful for your current project?

Explain how the simplifies your code.

Several new APIs were added to the stable standard library, including: