# Hono v4.12.33

- Product: Hono (https://whatsnew.fyi/product/hono)
- Vendor: Hono
- Date: 2026-07-31
- Version: v4.12.33
- Original notes: https://github.com/honojs/hono/releases/tag/v4.12.33
- Permalink: https://whatsnew.fyi/product/hono/releases/v4.12.33

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** — Relax cookie name validation when parsing Cookie header
- **fixed** — Handle useSyncExternalStore subscription and snapshot changes in JSX
- **removed** — Remove undeci in favor of global fetch

##### What's Changed
* fix(cookie): relax name validation when parsing Cookie header in https://github.com/honojs/hono/pull/5164
* chore: bump `@hono/node-server` in https://github.com/honojs/hono/pull/5167
* fix(jsx): handle useSyncExternalStore subscription and snapshot changes in https://github.com/honojs/hono/pull/5166
* chore: remove undici in favor of global fetch in https://github.com/honojs/hono/pull/5168

**Full Changelog**: https://github.com/honojs/hono/compare/v4.12.32...v4.12.33