Breaking: #91606 - Date/time operations in FormEngine removed 

See forge#91606

Description 

FormEngine supported to add or subtract a date or time range (depending on the field type) by appending e.g. +5 or -42 to the field values. These kind of operations have been removed as they are rather unknown and clumsy to use.

Impact 

Using these operations doesn't have any effect anymore.

Affected Installations 

All installations of TYPO3 are affected.

Migration 

There is no migration possible.