The plan of the application was to have a central repository for all libraries.
to maintain the libraries there is the web page code-i.de
where every developer can register and upload new versions of their libraries.
they even can be downloaded directly from the web page if someone don't want to use the tool.
once they are uploaded they will be directly available in the application and it should show you that there is a new version.
it is possible that someone else than the developer uploads new libs and versions.