I thought about the Python 2/3 debacle a lot this past year, and yes, I hope this isn’t a repeat. The Python migration was especially hard because of dependenci

I thought about the Python 2/3 debacle a lot this past year, and yes, I hope this isn’t a repeat. The Python migration was especially hard because of dependencies between libraries (you could only migrate your library or application to Python 3 after your dependencies migrated), and because Python is used for many large, long-term projects. Certainly D3, too, has its own plugin ecosystem and long-term projects, but it’s also commonly used as a standalone library in short-term work, such as in news graphics—where migration should be much easier. So hopefully that pain is lessened.