Stuart H, that is almost the intent, and probably close enough for this kind of documentation.
The full gory details are as follows:
Clojure can build and run with Java version 1.5 or later. A Java version 1.5 build of Clojure only works if you do not run the test suite, e.g. by using the command "ant jar". To build Clojure including running the test suite, or to use the new reducers library, requires Java 1.6 or later.
If the patch for
CLJ-1109 is applied, the full gory details become simpler to state:
Clojure can build and run with Java version 1.5 or later. Using the new reducers library requires Java 1.6 or later.