v4.13.8
bytedance/deer-flowv4.13.8Sep 15, 2026by yusukebe
Upgrading?
AI Summary
This release focuses on performance optimizations for JSX/DOM rendering and bug fixes for AWS Lambda streaming, Accept header parsing, and request body caching.
Key Highlights
- Reduced lookup work for large keyed updates in JSX/DOM rendering.
- Fixed AWS Lambda response body streaming to respect backpressure.
- Improved Accept header matching logic (quality 0, case-insensitivity, negative clamping).
- Fixed request media type preservation when reusing cached bodies.
Full Release Notes
## What's Changed * docs: fix typos in code comments and link third-party middleware section in https://github.com/honojs/hono/pull/5343 * perf(jsx/dom): reduce lookup work for large keyed updates in https://github.com/honojs/hono/pull/5340 * fix(aws-lambda): respect backpressure when streaming the response body in https://github.com/honojs/hono/pull/5351 * fix(accepts, language): skip accept entries with quality 0 when matching in https://github.com/honojs/hono/pull/5311 * fix(accept): treat the q parameter name as case-insensitive in https://github.com/honojs/hono/pull/5349 * fix(accept): clamp a negative q to 0, not 1 in https://github.com/honojs/hono/pull/5357 * fix(request): keep the request media type when reusing a cached body in https://github.com/honojs/hono/pull/5366 * docs(combine): fix except() JSDoc param and add missing @returns in https://github.com/honojs/hono/pull/5346 * perf(jsx/dom): optimize matching-head child lookup during reconciliation in https://github.com/honojs/hono/pull/5329 **Full Changelog**: https://github.com/honojs/hono/compare/v4.13.7...v4.13.8
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