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Javascript is in fact special because it's one of the few languages where the developer can't choose the version of the language to use. It's dictated by users

• Jack5500 11y ago
  Execpt for server-side languages that's nearly always the case
  • kuschku 11y ago
    Where? Java has such short maintainable cycles that Java 7 was dropped before Java 8 became used, and compiled languages (think C, C++, Haskell) always work. Are there any other languages relevant for non-server usage?
  • donatj 11y ago
    You can quite easily choose your version. There are virtual hosts out there supporting any version of anything. This problem is largely solved.
  • goldbrick 11y ago
    That's nearly never the case, unless you are running uncompiled scripts downloaded from the internet with no version manifest, in which case that's also horrible.
  • eridius 11y ago
    For scripting languages, sure. For compiled languages, you can choose whatever version you want, since the end user gets a binary blob instead of source code (and even if they're building from source, their package manager should be able to download the required build dependencies for them).