The first release of a contributed library with a major version number of "1" requires approval by Clojure/core.

In order to be approved for a 1.0.0 release, a contrib library must satisfy the following criteria (work in progress, original list by Stuart Halloway):

• Stability and production use.
• Some amount of time in #1 to get community feedback. (How long?)
  • Time and number of installations both factor in here - wide usage seems important to me (Sean).
• Conformance with Clojure idioms.
  • In particular: Library Coding Standards.
  • Current discussion on ML about 'foo' function / macro delegating to 'foo*' implementation and whether that is idiomatic.
• Careful review to avoid unnecessary dependencies.
  • Consensus from previous discussions seems to be:
    • Dependence on core is fine.
    • Dependence on new contrib is OK if really necessary.
    • Dependence on anything else is subject to intense review and challenge.
• Simplicity / Power / Focus.
  • This is a bit wooly and will need refinement to help contrib library developers.
  • Composability seems a common theme in discussions:
    • Prefer functions over macros.
    • Prefer explicit arguments over bindings.
  • On macros, the Library Coding Standards says to expose a function first and add a macro only where it provides ease-of-use.
• Avoid AOT requirement if at all possible.
• Motivated maintainer.