Web·
100 terabytes of RAM came back when Cloudflare shrank one DNS cache entry by 56%
Cloudflare's 1.1.1.1 holds 250 billion DNS cache entries. Five Rust layout changes cut each one from 953 bytes to 420, and lookups got faster.
#rust
RSSRust language releases, RFCs, and ecosystem moves.
Web·
Mozilla made Google rewrite the JPEG XL decoder in Rust before Firefox would ship it
Firefox turns JPEG XL on by default in version 157. Mozilla refused to ship 100,000 lines of C++, so Google Research wrote the decoder again in Rust.
Open Source·
Rust's new rules require disclosing LLM use. A Linux maintainer gives AI patches three seconds.
Five Rust teams ratified an LLM policy that bans AI-written docs and mandates disclosure. Linux leaves it to each maintainer. Both are rationing review time.
Open Source·
65.9% of the web platform tests now pass in Servo, but the Rust engine can't select text
Servo 0.4.0 landed a record 558 commits and fixed layout on real sites. Its own dashboard reads 65.9%, CSS Grid sits at 37.8%, and text selection isn't shipped yet.
Open Source·
Microsoft is shipping Linux's core commands on Windows, built in Rust
Microsoft's Coreutils for Windows brings native ls, cp, and grep to Windows, built on the Rust uutils project. Here's what it is and why the Rust rewrite matters.
AI·
Hacker News is obsessed with durable Postgres workflows and a game about clicking yes
Six dev-tooling and AI posts that climbed Hacker News in late May 2026: durable execution on plain Postgres, LLM code smells, a permission-fatigue game, Rust 1.96, and more.
Open Source·
Cloudflare taught wasm-bindgen to catch a Rust panic. Workers no longer poison the sandbox.
Three Cloudflare engineers shipped panic and abort recovery into wasm-bindgen on April 22. A Rust Worker that panics now reinitialises on the next request.
Open Source·
Bun's million-line Rust rewrite is now mainline. 99.8% of tests pass and 13,000 unsafe blocks remain.
Jarred Sumner merged the Bun-in-Rust PR on May 14, ending Zig as Bun's runtime language. Binary shrinks 3-8 MB; one analysis counted 13,000 unsafe blocks.
Open Source·
Jarred Sumner rewrote 960,000 lines of Bun from Zig to Rust in six days. He might throw it all away.
Bun's creator used Claude to port the JavaScript runtime from Zig to Rust, hitting 99.8% test compatibility. He says there's a 'very high chance' it gets scrapped.
Open Source·
Zed 1.0 ships its agentic editor. The Atom team's Rust rewrite finally has a stable label.
Zed Industries shipped 1.0 on April 29 after five years of Rust and GPU work. Free forever for humans, with $10/month hosted AI and an open Agent Client Protocol.
Open Source·
Rust 1.95 lands with if-let guards and a macro that kills cfg-if
Rust 1.95.0 stabilized cfg_select!, if-let guards in match arms, and a pile of new Vec and atomic APIs. Here's what's actually worth upgrading for.