Specification
=============
+Globals
+-------
+
+Attributes listed directly at the root level of the spec file.
+
+version
+~~~~~~~
+
+Generic Netlink family version, default is 1.
+
+``version`` has historically been used to introduce family changes
+which may break backwards compatibility. Since compatibility breaking changes
+are generally not allowed ``version`` is very rarely used.
+
Attribute type nests
--------------------
Name of the family. Name identifies the family in a unique way, since
the Family IDs are allocated dynamically.
-version
-~~~~~~~
-
-Generic Netlink family version, default is 1.
-
protocol
~~~~~~~~