Ferrocene 26.08.0 now available
Including three new qualified targets!
Ana
October 16th, 2026
Today we're announcing the release of Ferrocene 26.08.0, the latest update to our qualified Rust toolchain.
It's easy to start integrating Rust into your safety-critical industrial systems. Your team can immediately start shipping certifiable code for multiple architectures using a fully qualified Rust compiler with a significant subset of the core library pre-certified.
What is Ferrocene?
Developed as an open source, downstream Rust distribution, Ferrocene is 100% drop-in compatible with the main Rust compiler, allowing you to work seamlessly with both the toolchain distributed by the Rust project and the safety-critical Ferrocene toolchain.
Installation is a breeze: Use criticalup or download the relevant tarballs and unpack them. Users can even use criticalup link to enable familiar UX like cargo +ferrocene build. Your team won't have to administer a license server, CI integration is a snap, and the toolchain can be used totally offline, such as while travelling or in air-gapped environments.
Ferrocene is TÜV SÜD-qualified for use in safety-related development according to ISO 26262 (ASIL D), IEC 61508 (SIL 3), and IEC 62304 (Class C), and supports customer certification efforts toward assurance levels IEC 61508 SIL 4 and DO-178C DAL C.
A subset of the core library distributed with Ferrocene is certified to IEC 61508 (SIL 2) and ISO 26262 (ASIL B).
We'd love to tackle other qualifications and certifications alongside partners. Let us know if that partner can be you!
What is new in Ferrocene 26.08.0
Ferrocene 26.08.0 includes changes from Rust 1.96.0, 1.96.1, 1.97.0, and 1.97.1, such as Symbol mangling v0, new range types, assert_matches, and new library functions.
In addition, the following targets are now qualified for safety critical use:
- Armv7-R bare-metal (hard-float) (
armv7r-none-eabihf) - Armv8-A QNX® SDP 8.0+ (
aarch64-unknown-qnx) - x86-64 QNX® SDP 8.0+ (
x86_64-pc-qnx)
If your project needs additional functionality certified, new certifications added, additional libraries certified on top of core, or want to work with us to develop other useful safety critical tooling, we encourage you to reach out!
Read the full release notes.
Available for Purchase Today
With Ferrocene, users can develop high-assurance software from the start, without a massive upfront investment. Ferrocene is available for purchase today for €25/month or €240/year per user, providing access to all supported versions of Ferrocene (current and future), along with basic support.
Go to our Pricing page to purchase Ferrocene, or contact sales for more information on custom enterprise subscriptions.
Not sure if Ferrocene has the features you and your team need? You can also schedule a Why Ferrocene? session by reaching out to our sales team.