The snapcraft docs state the following:
core18is the currently recommended base for the majority of snaps […]
Is there any timeline for when we expect this situation to change and
core20 can be recommended as the base for most snaps?
Main reason I’m asking is that core18 has some pretty old versions of things that snaps increasingly need newer versions of. For example, Qt is 5.9, which is a couple of LTS versions ago. It’s getting to the point where supporting Qt 5.9 is getting harder. At least core20 looks like it probably comes with Qt 5.12, which is kinda the minimum you’d want to be building against by now.