User blog comment:MisterWoodhouse/The first specifics on the Unified Community Platform/@comment-29631071-20191016151745/@comment-27345308-20191016153742

DPL is a much more advanced version of DPLforum (and DPL3 is a better version of the current DPL) but the extension referred to in the blog was probably DPLforum (made specifically for wiki-style forums).