Julia’s METADATA package repository has been frozen for Julia 0.4. This means that new packages and tags cannot be registered if they list
julia 0.4 in the requires file. The minimum allowed version of Julia for new registrations is 0.5.0.
Another consequence of going through this process is that allowing prereleases for the current release version (i.e. specifying
julia 0.6- in requires) is no longer allowed for new registrations. Please use
julia 0.6 instead.
In case you’re not entirely familiar with how Julia’s package version resolution works, I’ll note that previous package tags should not be changed; users who for whatever reason are still on Julia 0.4 will still be able to install packages, they just won’t get the newest versions.