- Added onRequestAbort hook and new features: origin error messages in serialization errors and logging of refused requests.
- Improved documentation (Contribution guide VSCode setup, added Fastify Flux tool) and updated dependencies.
- Fixed multiple bugs: TypeScript AJV integration, implicit HEAD route handling, Node.js v16 test failures, missing symbols, and schema error formatter type.
v4.14.0
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Fix for two Fastify security advisories (GHSA‑w2qp‑rph6‑63g4 and GHSA‑3m5p‑2c4r‑xxw2).
Added per‑route logging for Google Cloud Functions and introduced `Reply.prototype.mediaType` for easier content‑type handling.
Fixed trailer state clearing when removing all trailers and corrected requestCompleted handling to use null instead of undefined.