Ah interesting. So compatibility issues from 7 to 8, and 8 to 8.1. But not 8.1 to 10?
I would really like to learn why these breaks were considered necessary at the time. In a practical sense it's irrelevant since WP is dead. But on the other hand, with the huge mobile market at stake, why did MS make these decisions that doomed it, and that seem obviously wrong to outsiders?
