Old OWL API Version in Protegé

[AsaphHall]

Hello, i´ve been using Protegé to work on an Ontology. At the end of the ontology file a line indicates that the document has been created by the owl api (see picture below). For an unknown reason it changed its version from 4.5.29 (13.05.2024) to 4.5.9 (01.02.2019). Does anyone have an idea how to fix, what might have caused this or encountered a similar "error"? Any help would be appretiated. As Protegé is the only tool i use to work on the ontology so i suppose something inside Protegé causes the "error".

[ignazio1977]

Hi, that string depends on the OWLAPI version that last updated the file (should be interpreted as "last written by" rather than created). OWLAPI does not update portions of a file, it writes the whole every time it saves an ontology.

So I'm guessing that's the OWLAPI version used in your protege version.

[AsaphHall]

Thank you. Ill check Protegé and may try reinstalling it.

[ignazio1977]

You could also try putting the OWLAPI 4.5.29 osgidistribution artifact in the protege plugins folder to replace the existing OWLAPI jar - pretty much updating protégé to that OWLAPI version. Although if you wanted to do that it'd be easier to check out protégé source, amend the dependency and rebuild.