Ferrous Systems logo Green box that says: It's official! Headline: Core. Qualified. Body text: Ferrocene 25.11.0, the latest update to our qualified Rust toolchain, is now live. This release arrives with our first IEC 61508 (SIL 2) certified subset of the Rust core library (core)! Teams can now ship certifiable code for multiple architectures using a fully qualified Rust compiler and a significant portion of the core library certified.