- Expose the default JSON serializer and add Fastify server‑session, Angular‑Universal, and caching to the ecosystem list
- Breaking changes: drop the send‑promise API and rename fastify.logger to fastify.log
- Bug fixes: pass request to onsend hook on 422/415 errors, improve setNotFoundHandler handling, fix TypeScript definitions, route‑handler rejection handling, and update documentation
v0.34.0
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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.