Radar · Rust · Archive · Week 43 · Oct 20 – 26, 2025
mention ACPs in README.md
Worth knowingtooling
- What changed
- The RFC README now mentions that ACPs should be used for adding new methods to
std. - Production impact
- The source does not say.
- Try it
- Open the RFC README to see the updated note about ACPs.
- Source
- github.com/rust-lang/rfcs/pull/3871
Understand it, then run it
The RFC documentation now tells you that if you want to add new methods to the standard library, you should use an ACP (Add‑to‑std Contribution Proposal). Before this change, the README did not mention ACPs, so people would open RFCs for such changes and then have them closed with a note to open an ACP instead. The new wording removes that confusion by pointing directly to ACPs. This is a small change to the text, not to the language itself.
Run it now
// This program demonstrates that the change is only in documentation,
// so it runs unchanged in any Rust 1.98.1 (edition 2024) environment.
fn main() {
println!("No code change required for the ACP mention update.");
}
What it printed when we ran it on Rust 1.98.1 (edition 2024)
No code change required for the ACP mention update.
Run sends this program (for Solidity, the contract and its tests) to our own sandbox, where it is compiled and run once, with no network, and what it printed or the test report comes back here. Nothing is kept. Runs are counted per visitor for the day so everyone gets a turn; the details are on the legal page.
Written by gpt-oss-20b from the linked source · claims checked against the sources · archive, not individually reviewed