- Critical security vulnerabilities in React Server Components (CVE‑2025‑55182) and Next.js (CVE‑2025‑66478) – upgrade React to ≥19.2.1 and Next.js to ≥15.4.8 immediately.
- Added features: custom slugify functions, automated accessibility testing, external JSON schema $ref support in type generation, automatic Cloudflare D1 adapter detection, and alignment options for Lexical upload nodes.
- Multiple bug fixes, documentation updates, and a breaking change that bumps the minimum required React and Next.js versions.
v3.66.0
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