--- title: Best Bytes by ui.dev posts — May 2026 | daily.dev description: The most upvoted Bytes by ui.dev posts from May 2026, curated by the daily.dev community. canonical: https://daily.dev/sources/bytesdev/best-of/2026/05 twitter:card: summary_large_image twitter:site: @dailydotdev og:url: https://daily.dev/sources/bytesdev/best-of/2026/05 og:type: website og:site_name: daily.dev og:title: Best Bytes by ui.dev posts — May 2026 | daily.dev og:description: The most upvoted Bytes by ui.dev posts from May 2026, curated by the daily.dev community. og:image: https://media.daily.dev/image/upload/s--VAY5ToZt--/f_auto/v1724209435/public/daily.dev%20-%20open%20graph --- # Best of Bytes by ui.dev — May 2026 1. 1 [](https://daily.dev/posts/what-claude-mythos-showed-cloudflare-ipckxoyet "What Claude Mythos showed Cloudflare") Article Bytes by ui.dev · 16w What Claude Mythos showed Cloudflare Cloudflare's CSO published findings from Project Glasswing, Anthropic's initiative giving select companies access to Claude Mythos for defensive security research. Key capabilities demonstrated include exploit chain construction (chaining primitives like use-after-free bugs into full system takeovers), proof generation (writing and running code to verify exploitability), and adversarial review (running two agents in deliberate disagreement to improve accuracy). The newsletter also covers npm package compromises, Julia Evans moving away from Tailwind, Andrej Karpathy joining Anthropic, and a JavaScript destructuring trick for grabbing first and last array elements. 81 14 2. 2 [](https://daily.dev/posts/pnpm-11-cuts-the-npm-umbilical-cord-vhucinbuf "pnpm 11 cuts the npm umbilical cord") Article Bytes by ui.dev · 18w pnpm 11 cuts the npm umbilical cord pnpm 11 is a major release that removes its dependency on the npm CLI by implementing native publish, login, and dist-tag commands. Key changes include a SQLite-based store index replacing millions of small JSON files for faster installs, supply-chain protection enabled by default (1-day minimum release age), isolated global installs per package, and a unified allowBuilds configuration. The release also ships as pure ESM. The newsletter also briefly covers Node.js 26 with Temporal API, a Vitest framework-agnostic proposal, and various other web dev links. 50 5 [See all Bytes by ui.dev archives](/sources/bytesdev/best-of) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@graph":[{"@type":"CollectionPage","@id":"https://daily.dev/sources/bytesdev/best-of/2026/05#page","url":"https://daily.dev/sources/bytesdev/best-of/2026/05","name":"Best Bytes by ui.dev Posts — May 2026","description":"The most upvoted Bytes by ui.dev posts from May 2026, curated by the daily.dev community.","isPartOf":{"@type":"WebSite","url":"https://daily.dev"}},{"@type":"ItemList","@id":"https://daily.dev/sources/bytesdev/best-of/2026/05#items","numberOfItems":2,"itemListElement":[{"@type":"ListItem","position":1,"url":"https://daily.dev/posts/what-claude-mythos-showed-cloudflare-ipckxoyet","name":"What Claude Mythos showed Cloudflare"},{"@type":"ListItem","position":2,"url":"https://daily.dev/posts/pnpm-11-cuts-the-npm-umbilical-cord-vhucinbuf","name":"pnpm 11 cuts the npm umbilical cord"}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Sources","item":"https://daily.dev/sources"},{"@type":"ListItem","position":3,"name":"Bytes by ui.dev","item":"https://daily.dev/sources/bytesdev"},{"@type":"ListItem","position":4,"name":"Best of","item":"https://daily.dev/sources/bytesdev/best-of"},{"@type":"ListItem","position":5,"name":"May 2026"}]}]} ```