Where does rustc read default edition from?

· Users Rust Lang · July 17, 2026, 7:54 p.m.
Rust programming software development cargo
Summary
This blog post explains where `rustc` reads its default edition from and emphasizes using Cargo to create new Rust projects. The author mentions that `rustc` defaults to the 2015 edition and discusses using environment variables to set editions, with a suggestion to create an alias for convenience.
Read full post on users.rust-lang.org →
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