Didn't see the word "test" in the article (except once talking about beta testing S.O.'s new product). And the word "test" isn't in these comments either, so...

Didn't see the word "test" in the article (except once talking about beta testing S.O.'s new product). And the word "test" isn't in these comments either, so... Will updated examples be run through a program testing them in some way? If not a full run within a playground-style environment, then through a type checker? And will the examples be tagged with version numbers? Some programming languages are notorious for changing syntax and/or semantics between minor versions.