I don't know how Ruby 2 does things, but Go will definitely not be like Python 2/3. Old Go 1 programs will continue to compile under Go 2, but Go 2 programs wil

I don't know how Ruby 2 does things, but Go will definitely not be like Python 2/3. Old Go 1 programs will continue to compile under Go 2, but Go 2 programs will not compile under Go 1. It's also not certain that we will need a Go 2. It may be that all features can be written in a backwards compatible manner and the major version won't need to be bumped.