Bun 1.4: Rust runtime, closer Node.js compatibility, less memory
+1,517 Node tests, up to 35% less memory, ~2× faster Linux startup—first stable release after the Zig→Rust rewrite.
Stuzhuk Lab — Chemistry of Code
Chemistry of Code
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javascript
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JavaScript in the agent harness: when a script is cheaper than model reasoning
A sandboxed JS interpreter replaces some tool hops and LLM arithmetic. Notes from a Habr deep dive on LM Studio and LangChain.
React useLatest: fresh state in async callbacks without extra renders
useLatest from @reactuses/core: a layout-effect ref against stale closures after await, timers, and subscriptions.
Bun in Rust, TypeScript 7, and npm 12: JavaScript Tooling Shifts
Bun rebuilds on Rust, TypeScript 7 speeds up compilation, and an npm incident underscores the operational cost of dependencies.
TypeScript 7.0 RC: Go-based compiler and up to 10× speed
Microsoft shipped TypeScript 7.0 RC on a new Go foundation: 6.0 compatibility, parallel builds, @typescript/typescript6 side-by-side, and a rebuilt --watch.
Biome vs Oxlint in 2026: Replacing ESLint
Rust-powered linters run 50–100× faster than ESLint, but choosing Biome or Oxlint depends on custom plugins, type-checking, and whether you want one tool instead of ESLint plus Prettier.
TypeScript 6.0, Next.js 16.2, and Node.js debates on AI-written code
JavaScript Weekly #778: strict by default, types=[], TS 7.0 prep; faster Next.js 16.2; Node.js nine CVEs and pushback on AI commits.