I don't know why they didn't just take this opportunity to call it version 1. It seems like the right time. The React Router folks just went through this, with

I don't know why they didn't just take this opportunity to call it version 1. It seems like the right time. The React Router folks just went through this, with a significant struggle in moving quickly from version 1 to version 2. But it turned out OK. It seems like there's a fear in making the call. Version 1 should be celebrated.