[Osiris]

JavaScript today wouldn't be recognizable to a JavaScript developer 6 years ago, especially when using class syntax, destructing, and async/await, among many other syntax additions.

[SomeHacker44]

Javascript the language has actually changed in those six years.

Common Lisp, OTOH, has not... But styles of CL do change as do libraries, making your statement as applied to CL much more plausible.