--- a/devel-versioning.rst	Fri Sep 23 17:33:55 2011 +0300
+++ b/devel-versioning.rst	Fri Sep 23 18:04:25 2011 +0300
@@ -66,18 +66,27 @@
 and any dependent of the prior version will require code changes to upgrade to
 the new package.
 
+Major number rare changed (this can take a lot of year).
+
 Minor version component.
 ------------------------
 
 Minor number change means that the new version is backward compatible with the
 previous version but has significant enhancements over the previous version.
 
+Functional enhancement releases. Contain new or significantly changed
+functionality and/or layout.
+
+New releases are usually only published several times a year or less.
+
 Revision, micro, bugfix version component.
 ------------------------------------------
 
 Revision number is updated whenever a bugfix is applied to the build such that
 it doesn't bring a compatibility change or introduce newer features.
 
+Patches are released frequently (sometimes daily).
+
 Milestone markers.
 ------------------