2026-01-11 08:00:00
Last year's annual review post observed that cargo-semver-checks' lint library is undergoing exponential growth, doubling each year: 30 lints at the end of 2022, 57 lints in 2023, and 120 at the end of 2024. We bring 2025 to a close with 242 lints, more than doubling last year's total — and that's just one facet of what we accomplished. Let's look at the full picture, and the path for 2026 and beyond!
2025-10-31 08:00:00
Recently, a cargo-semver-checks user reached out with a conundrum: cargo-semver-checks reported being unable to build their crate, but when they ran cargo check themselves, it always completed successfully. Something cursed was going on! The fix is part of the upcoming cargo-semver-checks v0.45 release—what better day than Halloween to talk about this ghost story!
2025-07-05 08:00:00
Researching the SemVer hazards of the #[target_feature] attribute led to finding unexpected unsoundness, discovering an "accidental feature" in Rust, finding bugs in rustdoc, the creation of an RFC that evolves the Rust language, and the addition of a dozen new SemVer lints. My work on cargo-semver-checks benefits the Rust ecosystem in more ways than just preventing breakage!
2025-04-01 08:00:00
Happy April 1st! This post is part of April Cools Club: an April 1st effort to publish genuine essays on unexpected topics. Please enjoy these true stories, and rest assured that the tech content will be back soon!
The mouse started moving. Not the one on the desk, the pointer on the screen! First to the left, then down to the bottom corner.
*Click!* The Windows Start menu came up.
"cmd" wrote a silent hand on an invisible keyboard. It downloaded a file from a random-looking URL, then executed it.
*Pop* went both the computer and the illusion of security.
2025-03-08 08:00:00
cargo-semver-checks v0.40 ships a massive upgrade to its system for detecting sealed traits. The new system is an all-around win-win: it improves the accuracy of a dozen existing lints, enables a new series of helpful lints, handles cyclic trait relationships, and is also faster than the old system. All that took a lot of work! Here's a look at how we made it happen.
2025-01-21 08:00:00
cargo-semver-checks ends 2024 having improved dramatically over the course of the year: 12 new releases featuring 63 new lints, with 1175 merged PRs from 57 authors across the many repos that make the project tick. Let's recap what we learned, the biggest things we shipped, and the facets of the project that made it to the conference and podcast circuits.
