JavaScript installer pnpm recast in Rust because ECMAScript can't keep up

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On September 4, 2026, The Register reported that the installer for the JavaScript package manager pnpm has been rewritten to use the Rust language. This refactoring was aimed at addressing the performance challenges posed by the evolution of the ECMAScript standard, in order to meet the higher requirements of the increasingly complex JavaScript ecosystem for toolchain efficiency.

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T The Register en 2026-09-04 20:22

知名 JavaScript 包管理器 pnpm 因完全重写为 Rust，安装时间缩短高达 90%。其维护者 Zoltan Kochan 表示，新版 pnpm 12 升级无需担忧，命令、标志及锁文件格式均与 v11 兼容。项目基准测试显示，v12 安装未缓存样本包仅需 5.19 秒，而 v11 需 8.22 秒，原生 npm 需 47.7 秒；配合新构建的 Rust 后端服务器 pnpr，安装时间进一步降至 3.37 秒。新版核心二进制包含约 65.9% Rust 和 33.5% TypeScript，旨在消除通过 Node.js 路由文件系统操作带来的开销。尽管团队曾对比 Bun 和 Yarn 但测试数据因失误被移除，pnpm 仍凭借内容寻址存储机制在依赖去重方面优于 npm，并在 2025 年 JavaSc…