Oh, I was wrong, the package is already using the new upstream code. According to the changelog of the the last update (October 26th) or network-manager-kde the new GUI is in fact using the new NM API, still it seems that some users have the problem.
Oh, I was wrong, the package is already using the new upstream code. According to the changelog of the the last update (October 26th) or network-manager-kde the new GUI is in fact using the new NM API, still it seems that some users have the problem.