Framework for downloading and sharing additional application data
The KNewStuff library implements collaborative data sharing for applications. It uses libattica to support the Open Collaboration Services specification.
If you are using CMake, you need to have
(or similar) in your CMakeLists.txt file, and you need to link to KF5::NewStuff.
Related information such as creation of *.knsrc files can be found on techbase in the Get Hot New Stuff tutorials.