Guarantees, cancelling and returning your purchases - Your Europe
europa.eu
How to claim the 2-year guarantee for EU purchases, get a repair, replacement or refund, how to cancel orders made outside shops (online, by phone, mail order).

The linked article states:

“You always have the right to a minimum 2-year guarantee if the digital content or service turns out to be faulty, not as advertised or not working as expected.”

IIUC, this means if a service is paired with software, and the API + software employs #forcedObsolescence mid-contract, they must fix or refund. Thus two example scenarios come to mind:

  • If you were to pay ProtonVPN for premium service in the year leading up to June 2021 and you ran AOS 5, you would have lost service after less than an annual subscription period. ProtonVPN would have to remedy it under EU law.
  • If your bank charges annual fees and they push a forced upgrade at any time that obsoletes your platform (so you cannot use the forced upgrade), the bank might be in violation of this EU consumer protection law.