Recently I inherited one very old and outdated durpal6-site and I have to "revive" it. I'm looking at it, and honestly do not know what to do. It is some old D6-site, with 6.28 core and ~50 equally outdated modules. I think first step is to bring it to the latest 6x version, then I will try to upgrade it to 7x.
Q1: Should I start first with core, then modules? Or first modules, then core?
Q2: Can I upgrade core/modules right to the latest version (core to 6.38), or I have to go over all versions in between?