From Joomla! Documentation
Revision as of 09:43, 6 February 2008 by Willebil
Minor Release Number (X.Y.Z) - An increment of the minor number usually indicates a significant change in functionality. Moderate to high level of backward compatibility with previous minor increments.
In minor releases we try not to alter the API, only additions to the API can be implemented when new logic is incorporated within the code base.