Update
We went around, everything is ok now a priori, do not hesitate to let us know any problem on the site ...
Update
Our test on PHP 7 works after having corrected a dozen modules, remains 1-2 tinkers, so we will stay in PHP7 hoping to see stability and no issues.
We gained a bit of loading time on admin side and site, we can not do better :)
Friday, January 27, 2017