Breaking: #88427 - jsfunc.evalfield.js has been removed

See Issue #88427

Description

The file jsfunc.evalfield.js, responsible for form value evaluation and validation, has been removed. This job is now done by TYPO3/CMS/Backend/FormEngineValidation since TYPO3 7.4.

Impact

Extensions still relying on this file and its API will not work anymore.

Affected Installations

All installations with third party extensions using this API are affected.

Migration

In most cases no migration is necessary, unless this API is used in a custom built form. In such case, migrate to FormEngine API to automatically use the new API.