Hi, I want to know if it's possible to update my mediawiki from version 1.15 to version 1.18 directly or if it's better to update to 1.16, and 1.17 before. Thank for your response Elodie -- -- Elodie Chapeaublanc IE Bioinformatique Équipe Oncologie Moléculaire Institut Curie - UMR 144 - CNRS 26 rue d'Ulm - 75248 Paris Cedex 05 Tel: +33 1 56 24 63 57 Email: elodie.chapeaublanc(a)curie.fr