VST3 assertion programListChange?

What is the point of this assertion when hosting VST3 plugins?:

 

    tresult PLUGIN_API notifyProgramListChange (Vst::ProgramListID, Steinberg::int32) override
    {
        jassertfalse;
        return kResultFalse;
    }
 

There are many others like this also.

I dont understand if it is something I have done wrong, or what it is supoosed to tell me..

 

For example Voxengo Gliss EQ does this:

Demo here:

http://www.voxengo.com/product/glisseq/

It was probably a requirement to create the method, but without having/knowing the best way to handle it.

aka: TODO

Thanks, I'll just ignore them then smiley