The French authorities will start to issue new EU standardised card-style driving licences from mid-February - and note that these will only be valid for 15 years. The old-style licences are valid for life, so if you need to change and are less than 70-ish, do it now.
If you still have a UK photo-card licence they are only valid 10 years. They cannot be renewed except to a valid UK address. Once you reach 70 they are only valid 3 years and you have to provide medical evidence to renew.