Valid from List & Label 15
Project files which use new objects of the current version, e.g. gauges or the HTML object, which are new in version 16 or have been updated, cannot be opened with a previous version of List & Label. The structure and file version of the project file however weren't adapted for version 16, so that they are downward compatible. However, as soon as new features are used in the project they can't be used in older versions.
IDKBTE000772 KBTE000772