https://twitter.com/LuigiBlood/status/692325267688263680
A build with support is available here: http://www.emucr.com/2016/01/project64-git-20160127.html
Preview video: https://www.youtube.com/watch?v=0gpnkqZC4tU
LuigiBlood said:Just found out my pull request for #64DD support in Project64 has been merged. So PJ64 2.3 is pretty much confirmed to have 64DD emulation.
A build with support is available here: http://www.emucr.com/2016/01/project64-git-20160127.html
Preview video: https://www.youtube.com/watch?v=0gpnkqZC4tU