## Problem
Updating mollie-api-php from 2.32.0 to 2.32.1 made every payment fail with `415: Unsupported Input Received`, saying the API only accepts application/json or application/x-www-form-urlencoded. Downgrading to 2.32.0 fixed it immediately, which pointed at a regression in the release. A maintainer confirmed the regression and released 2.32.2 the same day to revert the bad change. Multiple users confirmed 2.32.2 worked as expected. One contributor also noted the Content-Type header casing was part of the problem in the meantime.
## Verified fix
Version 2.32.1 shipped a regression that broke the Content-Type handling, so every API call failed with a 415. Fix: upgrade to 2.32.2, which reverts the bad change. Do not stay on 2.32.1. Several users confirmed payments worked again right after updating to 2.32.2. Source: https://github.com/mollie/mollie-api-php/issues/560