That refers to the Edition, and all development up to January 2024 (rust 1.84) was edition 2018. With rust 1.85, Edition 2024 came out.
Here is the news in Rust Edition 2024 https://doc.rust-lang.org/edition-guide/rust-2024/index.html , mostly details, so for effective rust everything for Rust 2018 should still be relevant.
That refers to the Edition, and all development up to January 2024 (rust 1.84) was edition 2018. With rust 1.85, Edition 2024 came out. Here is the news in Rust Edition 2024 https://doc.rust-lang.org/edition-guide/rust-2024/index.html , mostly details, so for effective rust everything for Rust 2018 should still be relevant.
Who memory-holed 2021 an why❔😉
Ahhh… Sorry, of course there was the 2021 edition in between… Ignore me… 🤣