# Hono v4.12.28

- Product: Hono (https://whatsnew.fyi/product/hono)
- Vendor: Hono
- Date: 2026-07-06
- Version: v4.12.28
- Original notes: https://github.com/honojs/hono/releases/tag/v4.12.28
- Permalink: https://whatsnew.fyi/product/hono/releases/v4.12.28

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Treat empty string content as found in serve-static
- **fixed** — Normalize Content-Type media type for case-insensitive matching in utils/body and validator
- **fixed** — Avoid circular dependency between body.ts and request.ts
- **fixed** — Report the requested subprotocol on WSContext.protocol in bun
- **fixed** — Detect V2 events by request context, not rawPath alone in aws-lambda

##### What's Changed
* fix(serve-static): treat empty string content as found by @yusukebe in https://github.com/honojs/hono/pull/5062
* docs(MIGRATION): fix req.raw.headers reference (property, not method) by @EduardF1 in https://github.com/honojs/hono/pull/5047
* chore: don't publish `*.tsbuildinfo` by @yusukebe in https://github.com/honojs/hono/pull/5066
* fix(utils/body,validator): normalize Content-Type media type for case-insensitive matching by @yusukebe in https://github.com/honojs/hono/pull/5067
* fix: avoid circular dependency between body.ts and request.ts by @usualoma in https://github.com/honojs/hono/pull/5071
* fix(bun): report the requested subprotocol on WSContext.protocol by @greymoth-jp in https://github.com/honojs/hono/pull/5059
* chore: bump `devDependencies` by @yusukebe in https://github.com/honojs/hono/pull/5085
* fix(aws-lambda): detect V2 events by request context, not rawPath alone by @VihaanAgarwal in https://github.com/honojs/hono/pull/5033
* docs(context-storage): fix JSDoc by @yusukebe in https://github.com/honojs/hono/pull/5086

##### New Contributors
* @EduardF1 made their first contribution in https://github.com/honojs/hono/pull/5047
* @greymoth-jp made their first contribution in https://github.com/honojs/hono/pull/5059
* @VihaanAgarwal made their first contribution in https://github.com/honojs/hono/pull/5033

**Full Changelog**: https://github.com/honojs/hono/compare/v4.12.27...v4.12.28