Previous attributes like documentation or representation changed their name and structure.

Changes in name:

Changes in structure: If an language argument is given, now the datatype PlainLiteral is used instead of parametrized attributes.

Example:

The previous statement

i[_representation("en")->"House"].

is now represented as

i[_label->"House"{en}].

The new style is automatically used by all ontologies created with OntoStudio 3.1. If old (v.2.0) ObjectLogic documents are loaded all related ground facts are converted on-the-fly and a warning is shown via logging. The same holds for rule, queries, and constraints, with one exception: Using the _synonym attribute without parameter inside those axioms a on-the-fly conversion cannot be done. The user has to rewrite the axiom manually. This will also be the case for axioms using the meta data attributes mentioned above in a non-standard way. A suitable warning for these axioms is logged.