One of the biggest challenges Rust developers report in our annual surveys is a subpar debugging experience. So, back in February, we ran our first Rust Debugging Survey, in the hopes of identifying how Rust developers are using debuggers and what problems they are facing when doing so. We received over 2,300 responses, and we'd like to thank everyone who took the time to participate in the survey…
The Rust team has published a new point release of Rust, 1.98.1. Rust is a programming language that is empowering everyone to build reliable and efficient software. If you have a previous version of Rust installed via rustup, getting Rust 1.98.1 is as easy as: rustup update stable If you don't have it already, you can get rustup from the appropriate page on our website. What's in 1.98.1 Rust 1.98…
The rustup team is happy to announce the release of rustup version 1.29.1. Rustup is the recommended tool to install Rust, a programming language that empowers everyone to build reliable and efficient software. What's new in rustup 1.29.1 The headlines of this release are: Concurrency in certain rustup operations has been improved: When running rustup update, rustup will first check for possible u…
We are very happy to announce the Rust Project's first round of Maintainers in Residence: Gen Li (@rami3l), Chris Denton (@ChrisDenton), Alejandra González (@blyxyas), León Liehr (@fmease), and Maintainer Grant recipients: Jason Newcomb (@Jarcho) and Jonas Böttiger (@joboet). These contributors will be funded for their rust-lang maintenance activities for (at least) the following 12 months! The fu…
After nearly 4 years of active development, the next-generation trait solver is close to stabilization. We are enabling it by default on nightly to surface any remaining issues and plan to stabilize it in the next months. This is the largest single change to the Rust compiler since its initial release. It completely replaces the existing type system components responsible for proving where-clauses…
The Rust team is happy to announce a new version of Rust, 1.98.0. Rust is a programming language empowering everyone to build reliable and efficient software. If you have a previous version of Rust installed via rustup, you can get 1.98.0 with: $ rustup update stable If you don't have it already, you can get rustup from the appropriate page on our website, and check out the detailed release notes…
What happened On 2026-08-20 at 7:15 UTC we got a report that the proc-macro1 crate was malicious. The Rust Security Response Team verified this to be the case: the crate had a build script that was downloading a malicious payload. This crate proc-macro1 and others like it (proc-macro-en, aovine, arone, aronenao, tinymember) have been deleted. Furthermore, we discovered that the popular arrayref cr…
TL;DR We are enabling the next iteration of the borrow checker (coined Polonius Alpha) on nightly in preparation for stabilization in the next few months. Whaaaaaat? Yes! You heard it right! The next iteration of the Rust borrow checker is coming! Rust's first borrow checker ("AST borrowck") was very limited and was phased out in 2019 in favor of NLL, other than a "migrate mode" that was used to p…
TL;DR We are enabling the next iteration of the borrow checker (coined Polonius Alpha) on nightly in preparation for stabilization in the next few months. Whaaaaaat? Yes! You heard it right! The next iteration of the Rust borrow checker is coming! Rust's first borrow checker ("AST borrowck") was very limited and was phased out in 2019 in favor of NLL, other than a "migrate mode" that was used to p…
The Rust team has published a new point release of Rust, 1.97.1. Rust is a programming language that is empowering everyone to build reliable and efficient software. If you have a previous version of Rust installed via rustup, getting Rust 1.97.1 is as easy as: rustup update stable If you don't have it already, you can get rustup from the appropriate page on our website. What's in 1.97.1 Rust 1.97…
Another six months have passed since our last development update, and the crates.io team has been busy. Here's a summary of the most notable changes and improvements made to crates.io since then. Source Code Viewer Crate pages now have a "Code" tab that lets you browse the contents of published crate versions directly on crates.io. This shows you the exact files that cargo downloads when you add a…
The Rust team is happy to announce a new version of Rust, 1.97.0. Rust is a programming language empowering everyone to build reliable and efficient software. If you have a previous version of Rust installed via rustup, you can get 1.97.0 with: $ rustup update stable If you don't have it already, you can get rustup from the appropriate page on our website, and check out the detailed release notes…
The Rust team has published a new point release of Rust, 1.96.1. Rust is a programming language that is empowering everyone to build reliable and efficient software. If you have a previous version of Rust installed via rustup, getting Rust 1.96.1 is as easy as: rustup update stable If you don't have it already, you can get rustup from the appropriate page on our website. What's in 1.96.1 Rust 1.96…
This is another post in our series covering what we learned through the Vision Doc process. We previously described the overall approach and what we learned about doing user research, we explored what people love about Rust, dug into what it takes to ship safety-crticial Rust, and described some of the major challenges that people face when using Rust. In this post we walk through what folks have…
If you want to financially support the development of Rust, please consider donating to the Rust Foundation Maintainers Fund. A few months ago, the Rust Foundation announced the Rust Foundation Maintainers Fund (RFMF). Since then, the Rust Project has been closely cooperating with the Rust Foundation to determine how exactly this fund will be used to support Rust maintainers. This resulted in the…
The Rust team is happy to announce a new version of Rust, 1.96.0. Rust is a programming language empowering everyone to build reliable and efficient software. If you have a previous version of Rust installed via rustup, you can get 1.96.0 with: $ rustup update stable If you don't have it already, you can get rustup from the appropriate page on our website, and check out the detailed release notes…
The Rust Security Response Team was notified that Cargo incorrectly normalized the URLs of third-party registries using the sparse index protocol. If a hosting provider allowed multiple registries to be hosted with arbitrary names within the same domain, an attacker able to publish crates in a registry could obtain the credentials of others users of the same registry. This vulnerability is tracked…
The Rust Security Response Team was notified that Cargo incorrectly handled symlinks inside of crate tarballs downloaded from third-party registries, allowing a malicious crate to override the source code of another crate from the same registry. This vulnerability is tracked as CVE-2026-5223. The severity of the vulnerability is medium for users of third-party registries. Users of crates.io are no…
The 2025H2 Project Goal period has now concluded. Over these months, the Rust Project pursued 41 Project Goals, 13 of which were designated as Flagship Goals. This post contains curated updates on our progress since the last post and the final status for each of the goals (many of which continue as part of the 2026 period). Full details for any particular goal are available in its tracking issue.…
The Rust Project has been building up a good history of participating in various open-source mentorship programs, including Google Summer of Code for three years (including this year) and previously OSPP. We're happy to announce that this year we are also participating in Outreachy starting in the May 2026 cohort. Each of these mentorship programs has different criteria for eligibility depending o…
The nvptx64-nvidia-cuda target is a compilation target for NVIDIA GPUs. When using this target, the final output is PTX. Two version choices shape that output: a GPU architecture (for example, sm_70, sm_80, …), which determines which GPUs can run the PTX, and a PTX ISA version, which determines which CUDA driver versions can load (and JIT-compile) the PTX. In Rust 1.97 (scheduled for release on Ju…
As previously announced, the Rust Project is participating in Google Summer of Code (GSoC) 2026. GSoC is a global program organized by Google that is designed to bring new contributors to the world of open source. A few months ago, we published a list of GSoC project ideas, and started discussing these projects with potential GSoC applicants on our Zulip. We had many interesting discussions with t…