--- title: Best Vercel posts — January 2026 | daily.dev description: The most upvoted Vercel posts from January 2026, curated by the daily.dev community. canonical: https://daily.dev/sources/vercel/best-of/2026/01 twitter:card: summary_large_image twitter:site: @dailydotdev og:url: https://daily.dev/sources/vercel/best-of/2026/01 og:type: website og:site_name: daily.dev og:title: Best Vercel posts — January 2026 | daily.dev og:description: The most upvoted Vercel posts from January 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 Vercel — January 2026 1. 1 [](https://daily.dev/posts/streamdown-v2-smaller-bundle-cdn-loading-and-new-remend-options-0jpiws4bj "Streamdown v2: Smaller bundle, CDN loading, and new Remend options") Article Vercel · 35w Streamdown v2: Smaller bundle, CDN loading, and new Remend options Streamdown v2 introduces an 83.5% smaller bundle size by using CDN-loaded assets for languages, themes, and libraries on-demand, enabling deployment on Cloudflare Workers. The update adds built-in caret indicators for streaming content visualization and makes the Remend markdown-healing library configurable, allowing developers to customize healing behavior for links, images, formatting, and headings during markdown streaming. 79 1 2. 2 [](https://daily.dev/posts/ai-voice-elements-wi1ttqkhi "AI Voice Elements") Article Vercel · 35w AI Voice Elements Vercel released AI Voice Elements, a new component library for the AI SDK that enables building voice agents and transcription services. The release includes six components: Persona (animated AI visual with Rive WebGL2), SpeechInput (voice capture with Web Speech API fallback), Transcription (synchronized playback display), AudioPlayer (customizable playback built on media-chrome), MicSelector (microphone device selection), and VoiceSelector (AI voice selection interface). All components are built on shadcn/ui and can be installed via npx. 52 1 3. 3 [](https://daily.dev/posts/summary-of-cve-2026-23864-igyaclea7 "Summary of CVE-2026-23864") Article Vercel · 33w Summary of CVE-2026-23864 Multiple high-severity denial of service vulnerabilities (CVE-2026-23864, CVSS 7.5) were discovered in React Server Components affecting versions 19.0.x through 19.2.x. The vulnerabilities can be triggered through specially crafted HTTP requests to Server Function endpoints, potentially causing server crashes, out-of-memory exceptions, or excessive CPU usage. Affected frameworks include Next.js versions 13.x through 16.x, along with other tools using React Server Components. Vercel deployed WAF mitigations automatically, but immediate upgrades to patched versions are required. Fixes are available in React 19.0.4+, 19.1.5+, 19.2.4+ and corresponding Next.js versions. 36 1 4. 4 [](https://daily.dev/posts/ai-gateway-support-for-claude-code-tkqkttjro "AI Gateway support for Claude Code") Article Vercel · 36w AI Gateway support for Claude Code Vercel AI Gateway now supports Claude Code through an Anthropic-compatible API endpoint. Configure Claude Code to route requests through AI Gateway by setting environment variables (ANTHROPIC\_BASE\_URL, ANTHROPIC\_AUTH\_TOKEN, and an empty ANTHROPIC\_API\_KEY). This enables centralized usage tracking, observability traces, and failover capabilities between providers. 10 [See all Vercel archives](/sources/vercel/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/vercel/best-of/2026/01#page","url":"https://daily.dev/sources/vercel/best-of/2026/01","name":"Best Vercel Posts — January 2026","description":"The most upvoted Vercel posts from January 2026, curated by the daily.dev community.","isPartOf":{"@type":"WebSite","url":"https://daily.dev"}},{"@type":"ItemList","@id":"https://daily.dev/sources/vercel/best-of/2026/01#items","numberOfItems":4,"itemListElement":[{"@type":"ListItem","position":1,"url":"https://daily.dev/posts/streamdown-v2-smaller-bundle-cdn-loading-and-new-remend-options-0jpiws4bj","name":"Streamdown v2: Smaller bundle, CDN loading, and new Remend options"},{"@type":"ListItem","position":2,"url":"https://daily.dev/posts/ai-voice-elements-wi1ttqkhi","name":"AI Voice Elements"},{"@type":"ListItem","position":3,"url":"https://daily.dev/posts/summary-of-cve-2026-23864-igyaclea7","name":"Summary of CVE-2026-23864"},{"@type":"ListItem","position":4,"url":"https://daily.dev/posts/ai-gateway-support-for-claude-code-tkqkttjro","name":"AI Gateway support for Claude Code"}]},{"@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":"Vercel","item":"https://daily.dev/sources/vercel"},{"@type":"ListItem","position":4,"name":"Best of","item":"https://daily.dev/sources/vercel/best-of"},{"@type":"ListItem","position":5,"name":"January 2026"}]}]} ```