Deprecation: #69401 - Adopt ext:form to support the Extbase/ Fluid MVC stack

See Issue #69401

Description

Form is now based on Extbase/ Fluid for frontend rendering. Therefore all TypoScript based layout settings have been marked as deprecated. Using the following code is not recommended anymore:

10 = FORM
10 {
        layout {
                containerWrap = <div><elements /></div>
                elementWrap = <div><element /></div>
        }
}

Impact

All .layout TypoScript properties should not be used anymore. Backward compatibility algorithms will be removed with TYPO3 CMS 8.

Affected Installations

All installations using .layout TypoScript properties.

Migration

Move away from .layout TypoScript properties and move to Fluid based templating.