On Friday, 10 June 2016 at 14:44:22 UTC, Seb wrote:
I don't think that any DIP was proposed by an outsider - the major problem is that the "Approval" process isn't formal at all, that's why so many DIPs are "Drafts".Have a look yourself at the DIP wiki: http://wiki.dlang.org/DIP
Hm, were these done by outsiders maybe: DIP 6 by Ary Borenszweig in 2009 DIP 20 by Alex Rønne Petersen in 2012 I can't find any later ones.