the project started around 1990, they announced a draft completed in 2000, "completion" in 2003 (this was more a token announcement based on a threshold than a true milestone). Even then the scientists knew that major parts of the centromere, telomere, and highly repetitive regions were not fully resolved, and that was fully admitted. The work by Karen Miga at UCSC and others is more of a mop-up now that genome sequencing is a mature technology and we have much better ways at getting at those tricky regions.

another "completion" happened 3 years ago, before this announcement. but this is the last one. I promise.