> You shouldnt need to ”keep up with a language”. I never said you had to. The question that was asked is "how hard is it to" not "should I." > A professional

> You shouldnt need to ”keep up with a language”. I never said you had to. The question that was asked is "how hard is it to" not "should I." > A professional computer language should always have a ”LTS” mode where you can compile a decade old code without modifications. Otherwise the language is a toy. I don't personally feel that this is a useful distinction because it means the vast majority of language implementations are a "toy." Heck, C++ might be one of the few non-dead languages where this is true! You can add new things while staying backwards compatible. "I want to keep up with the language" and "I want ten year old code to work" isn't inherently at odds.