Those are classifications, but are they definitions?  It&#x27;s still not clear to me that &quot;stability&quot; has much to do with the software performing in a consistent matter.  Either way it&#x27;s a careless choice of wording, I&#x27;ve never encountered anybody who saw the word &quot;unstable&quot; attached to a node.js release and understood that it might refer to the API (see surrounding comments).