Questione giuridica chiave
Whether the prerequisites for modifying the divorce maintenance under Art. 153 aCC were met
Decisione estratta
The cantonal court rightly found a relevant and lasting change: the ex-wife's financial situation had improved enough to justify a reduction, and the ex-husband's retirement did not prevent modification.
Motivazione estratta
The Federal Supreme Court held that the modification action must be based on new facts compared with the situation contemplated in the divorce judgment. The wife had not shown arbitrariness in the factual findings, and her retirement arguments were not sufficiently substantiated.