# Hono v4.13.2

- Product: Hono (https://whatsnew.fyi/product/hono)
- Vendor: Hono
- Date: 2026-08-13
- Version: v4.13.2
- Original notes: https://github.com/honojs/hono/releases/tag/v4.13.2
- Permalink: https://whatsnew.fyi/product/hono/releases/v4.13.2

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** — Output standard empty parentheses () instead of none for disabled Permissions-Policy directives in secure-headers
- **fixed** — Render async children of document metadata tags instead of [object Promise] in jsx
- **fixed** — Resolve incorrect incremental hashing for chunked responses in etag
- **fixed** — Serialize multiple cookies correctly in client
- **fixed** — Stabilize digest across stream chunks in etag
- **fixed** — Strip trailing question mark correctly for optional params with regex quantifiers in url
- **changed** — Pre-join static array header options during initialization in cors for performance
- **fixed** — Send falsy JSON bodies in client
- **added** — Add missing W3C Permissions-Policy directives in secure-headers

##### What's Changed
* fix(secure-headers): output standard empty parentheses () instead of none for disabled Permissions-Policy directives in https://github.com/honojs/hono/pull/5197
* fix(jsx): render async children of document metadata tags instead of [object Promise] in https://github.com/honojs/hono/pull/5204
* fix(etag): resolve incorrect incremental hashing for chunked responses in https://github.com/honojs/hono/pull/5199
* fix(client): serialize multiple cookies correctly in https://github.com/honojs/hono/pull/5202
* fix(etag): stabilize digest across stream chunks in https://github.com/honojs/hono/pull/5205
* fix(url): strip trailing question mark correctly for optional params with regex quantifiers in https://github.com/honojs/hono/pull/5209
* perf(cors): pre-join static array header options during initialization in https://github.com/honojs/hono/pull/5210
* fix(client): send falsy JSON bodies in https://github.com/honojs/hono/pull/5215
* feat(secure-headers): add missing W3C Permissions-Policy directives in https://github.com/honojs/hono/pull/5214

**Full Changelog**: https://github.com/honojs/hono/compare/v4.13.1...v4.13.2