Am I right in supposing that 2.20.0 is the now stable version? I notice that, for example, installing Frescobaldi on OpenSuse Leap 15 installs 2.18.2 together with it. Should these system packages now use 2.20.0 instead? That would be a good way to get people off the old versions, for those newly setting up.
How does lilypond get into distribution repositories anyway? Is there any thing I can do to help in this regard? It's not a big deal as it is trivial to install 2.20.0 and get Frescobaldi to use that. But it seems to more 2.18.2 is, in a way, deprecated, or at least not one's first choice now.