The Rust team released version 1.98.0 on 20 August 2026. The headline change is a set of “algebraic” methods for floating-point numbers that give the compiler more room to optimise.
Algebraic floating-point methods
The f32 and f64 types gain new methods for addition, subtraction, multiplication, division and remainder. They let the compiler optimise using the algebraic properties of real numbers – for example reordering operations. This is useful for compute-heavy code where tiny deviations in the result are acceptable but speed matters.
Other changes
- All primitive integer types get a
format_intomethod that takes a&mut NumBuffer. - The documentation of
ManuallyDropwas clarified and now gives a stable guarantee regarding undefined behaviour.
If you have rustup installed, update with rustup update stable.
