title: Clojure dependency on Java 1.5 only?
body: <p><em>I hope this is not off-topic for SO (I hesitated between SO and programmers.stackexchange)</em> but as far as I can tell this is a <em>"practical, answerable problem that is unique to the programming profession"</em> so it's complying with the FAQ.</p>
  
  <p>Which version of the JVM do you need in order to run which version of Clojure (Clojure on the JVM, this question is not about ClojureScript)?</p>
  
  <p>The page here: <a href="http://clojure.org/getting_started" rel="noreferrer">http://clojure.org/getting_started</a> states that:</p>
  
  <blockquote>
    <p>Clojure requires only Java 1.5 or greater</p>
  </blockquote>
  
  <p>But is this always going to be the case?</p>
  
  <p>And what about the Clojure ecosystem, like Leiningen?</p>
  
  <p>Basically I'd like to know if I can count on Clojure to be able to develop a desktop app that should run on systems, including OS X systems, that are never going to get Java 6 nor more recent versions of Java (for example on some OS X versions Apple stated that no JVM 6 would ever see the light).</p>