vercel/next.js v16.3.0-canary.21

Source

• Source kind: github-release
• Canonical URL: https://github.com/vercel/next.js/releases/tag/v16.3.0-canary.21
• Repository: next.js
• Framework: Next.js
• Published: 2026-05-15T23:59:20Z
• Prerelease: True
• Author: next-js-bot[bot]
• Body hash: f905e22b5487d035ad3d40e6bf8c9ff2a910f18c8ac4c2ac29938304e973a659
• Semantic hash: 4163d406b727278cc6110cff50efa71dd2d7d8ddc438ea33649857f3afb91d7e

Release Ideas

• Redesign dev overlay: cleaner shell + instant fix-card guidance: #93755

Summary

Core Changes - Redesign dev overlay: cleaner shell + instant fix-card guidance: 93755 Misc Changes - Trace middleware/proxy source files in webpack NFT pipeline: 93871 Credits Huge thanks to @unstubbable and @yavorpunchev for helping!

Public Handling Notes

• EXTRACTED: This page records release metadata and a concise idea summary.
• INFERRED: The full release body is not mirrored publicly; use the canonical GitHub URL for complete text.

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