v4.12.3

honojs/honov4.12.3Feb 26, 2026by yusukebe

AI Summary

A patch release focused on bug fixes across validator, JWT, and type modules. Includes fixes for form data parsing type issues, timestamp handling in JWT, context variable mapping, and DOM type dependencies.

Key Highlights

Fixed type diff bug in form data parsing in validator
Fixed JWT timestamp handling using Math.floor instead of bitwise OR
Fixed JwtVariables for ContextVariableMap
Removed DOM type dependencies from ClientResponse and request method
Fixed middleware types and prevented JWT memory leak by avoiding options object mutation

Full Release Notes

## What's Changed
* fix(validator): prevent type diff bug in form data parsing by @EdamAme-x in https://github.com/honojs/hono/pull/4753
* fix(jwt): use `Math.floor` instead of bitwise OR for safe timestamp by @EdamAme-x in https://github.com/honojs/hono/pull/4754
* fix(jwt): fix `JwtVariables` for `ContextVariableMap` by @yusukebe in https://github.com/honojs/hono/pull/4764
* fix(types): remove DOM type dependencies from ClientResponse and request method by @YevheniiKotyrlo in https://github.com/honojs/hono/pull/4768
* fix(types): correct middleware types by @hmnd in https://github.com/honojs/hono/pull/4774
* fix(jwt): prevent memory leak by avoiding mutation of options object by @EdamAme-x in https://github.com/honojs/hono/pull/4759

## New Contributors
* @YevheniiKotyrlo made their first contribution in https://github.com/honojs/hono/pull/4768
* @hmnd made their first contribution in https://github.com/honojs/hono/pull/4774

**Full Changelog**: https://github.com/honojs/hono/compare/v4.12.2...v4.12.3