GCC under Solaris 11.4 Beta (refresh)

About 2 months ago I've posted about the availability of GCC 5.5.0 under Solaris 11.4 Beta. Today I've just got to know through my Linked-in connections that everything has been refreshed and that now GCC 7.3 is available. I'm still not believing but at some point I'm going to check it out!