Date.
In preparation of the consortium formalization by ESA, an additional five X-IFU co-investigators were recently appointed : S. Bandler (US), E. Costantini (NS), L. Duband (FR), K. Sakai (JP) to which a German CoI will be soon added. Four scientists joined the X-IFU science advisory team : S. Ettori (IT), J. Kaastra (NL), P. Mazzotta (IT), A. Simionescu (NL) to strengthen the coverage of the hot universe science, which is driving key X-IFU performance parameters.