Ah, that is right. I apologize, I think I've learned that three times now, but for some reason my brain refuses to accept it.

I like that previous editions get new features when possible, unlike say C++, but I wish they'd gone with semantic versioning for the language version, like python did when both 2 and 3 were active. Oh well, I just need to remember that the edition is like the major version, and compiler version is sort of like minor version, and both are needed to specify forwards compatibility.