I made the change by hdiff.
By running the update utility, i get an error :
Fichier : /home/login/public_html/punbbforum/12_to_1215_update.php
Ligne : 69
PunBB a rapporté :: Version mismatch. This script updates version 1.2, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.2.8, 1.2.9, 1.2.10, 1.2.11, 1.2.12, 1.2.13, 1.2.14 to version 1.2.15. The database 'login_bdd2' doesn't seem to be running a supported version.
The version whitch is write on my stat is 1.2.12, but i have already update 3 months ago 1.2.12 to 1.2.14 without the change on the stat, still writing 1.2.12.
I am now try to upgrade to 1.2.15, all the file had been change manually, but i can't do the update because of the error.