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.