@cobratbq basically the arrows show consumption paths
For example LGPL v2.1 and LGPL v3+ are not compatible, neither license can include code from the other nor can you upgrade one to the other.
However both of these can be rolled into a GPLv3 license and therefore you can merge them under that license.
@freemo yeah, I already understood. You exactly mentioned the one thing that I noticed too. It isn't completely surprising, but it is nice that it's obvious.
@freemo oh well. The one-image overview is very nice.