The LHCb VELO upgrade by Collins, P, Akiba, K, Alexander, M, Artuso, M, Bayer, F, van Beuzekom, MG, Blusk, S, Bowcock, T, Buytaert, J, Campbell, M, Coco, V, Crossley, M, Dumps, R, Eklund, L, Esperante, D, Ferre Llin, L, Gallas, A, Gandelman, M, Gersabeck, M, Gligorov, V, Huse, T, John, M, Kucharczyk, M, Llopart, X, Maneuski, D