[psanford]

The Go 1.x compatibility promise is one of Go's best features.

[naikrovek]

Yes.

Though, I wonder how much more the language could be improved if it weren't tied down to the bad decisions of the past. Those must all continue in perpetuity while the compatibility promise is kept.

[psanford]

Not in perpetuity. Go 2 does not promise to be backward compatible.

[tapirl]

The current Go 2 drafts do.