Just a data point on ordering and shipping. I order my µBITX with the extra $10 DHL shipping on February 7th, it shipped from Hydrabad on February 22, 2019 and was delivered on February 25th by DHL. I was not aware of the version change when I ordered, so happily I have a V5 board (not that I would know any difference)
I am 100% satisfied with fulfillment time and shipping. Now on to building!