Rust 1.88 released with Let statements chaining, naked functions, and Cargo cache cleaning

Rust 1.88 arrives with several noteworthy improvements for developers using this memory-safe programming language. The ability to chain let expressions allows &&-chaining let statements inside if and while conditions, even intermingling with boolean expressions. This feature streamlines Rust's conditional syntax, reducing differences between constructs like if, if let, while, and while let.

In addition, Rust now permits writing naked functions. With this capability, developers can omit automatic compiler-generated function prologues and epilogues, achieving full control over a function's assembly output. This change appeals especially to those building low-level or embedded applications.

Expanding configuration flexibility, the cfg predicate language now supports boolean literals: true and false can explicitly control when conditional compilation is always on or always off. This enhancement works across Rust source files, cfg macros, and Cargo [target] configuration tables. Alongside these language changes, Cargo, Rust's package manager, has been updated to perform automatic garbage collection of its cache. This background process helps manage disk usage for all users.

Rust 1.88 also delivers new stabilized APIs and a range of additional enhancements and bug fixes.