Picking a version longevity winner probably depends on whether you mean specification, or implementation. ANSI Common Lisp was standardized in 1994, and there

Picking a version longevity winner probably depends on whether you mean specification, or implementation. ANSI Common Lisp was standardized in 1994, and there have been no updates to the language since then. There are several supported implementations (though the implementations have probably all incremented their major version at least once since then). It seems that JavaScript gave up numbering at 1.8.5 [1], so you might consider it to still be on "JavaScript 1.x", which dates back to 1996. [1]: https://en.wikipedia.org/wiki/JavaScript#Version_history https://en.wikipedia.org/wiki/JavaScript#Version_history