And, to be clear, this is what React team has been doing all along. When you fixed all deprecation warnings in 0.12, you could update to 0.13. React just moved

And, to be clear, this is what React team has been doing all along. When you fixed all deprecation warnings in 0.12, you could update to 0.13. React just moved “0” at the end because it has been used in production for years.