The concept of free upgrades as a part of announced frequent flyer perks appears to be limited to North American airlines. The major service perks of the European FF programs are free lounge access irrespective of class flown (i.e. no membership necessary), extra luggage, priority check-in (and on waiting list). At op-ups *G FF get priority. Lufthansa intra-Europe sometimes upgrade *G (2/10 in my own experience). But do not expect an upgrade, or you will be disappointed. Free upgrades is not a *A benefit.