Imagine you were relying on Quickbooks, and a major taxation change, like the Eu...

Nevermark · on May 23, 2023

Certainly charging for upgrades with useful new and critical functionality is reasonable.

But reasonableness would also price even critical functionality relative to how hard it was to actually implement.

I.e. don't hold hostage a customers' investments in a software product. Don't force customers to pay a ransom to get a simple-to-implement feature.