Mavericks isn't exactly a spring chicken
That's still no excuse for forcing an update that disables the product.
Still, Google have form in this respect. Google Docs on iOS 7 disabled itself without being updated when Google "decided" that iOS 7 was too old (about the time iOS 9 came around, IIRC). Because God forbid a user being happier staying with what works than to try a 5GBish download on rural broadband to install on older hardware (and with the thing with the implicit slow down of older hardware "to preserve the battery"...).
Biting the hand that feeds IT
