Calling these former stdlibs is confusing, I think.
My understanding:
stdlib - package that ships with julia (no git-tree-sha1 in the manifest)
upgradable stdlib - package that ships with julia, which can optionally be upgraded (gets a git-tree-sha1 if upgraded)
former stdlibs - a package that used to be shipped with julia but isn't any longer (no packages yet, AFAIK)
If a julia 2.0 is cut, then upgradable stdlibs are primed to become former stdlibs, i.e. not shipped with julia, but before that it's confusing I think.
Also I don't believe we document that some stdlibs can be upgraded.
Calling these former stdlibs is confusing, I think. My understanding:
If a julia 2.0 is cut, then upgradable stdlibs are primed to become former stdlibs, i.e. not shipped with julia, but before that it's confusing I think.
Also I don't believe we document that some stdlibs can be upgraded.