[10:10] <ogra_> hmm, who is responsible for uec-images.u.c .... ? seems the release/ link got missing on http://uec-images.ubuntu.com/releases/16.04/
[16:48] <slangasek> ogra_: that's an alias for http://cloud-images.ubuntu.com/releases/16.04/ and is gaughen's team; rcj or Odd_Bloke might know something