v5.2.1

x402-foundation/x402v5.2.1Dec 1, 2025by jonchurch

AI Summary

This release reverts an erroneous breaking change from the prior version regarding the extended query parser, confirming no actual security vulnerability exists.

Key Highlights

Reverted erroneous breaking change from 5.2.0 regarding the extended query parser
Confirmed CVE-2024-51999 has been rejected

New Features

Revert of erroneous breaking change

Full Release Notes

## What's Changed

> [!IMPORTANT]  
> The prior release (5.2.0) included an erroneous breaking change related to the extended query parser. There is no actual security vulnerability associated with this behavior (CVE-2024-51999 has been rejected). The change has been fully reverted in this release.

* Release: 5.2.1 by @UlisesGascon in https://github.com/expressjs/express/pull/6933

**Full Changelog**: https://github.com/expressjs/express/compare/v5.2.0...v5.2.1