--- a/HACKING.rst	Thu Jul 12 23:13:00 2012 +0300
+++ b/HACKING.rst	Thu Jul 12 23:13:53 2012 +0300
@@ -12,6 +12,13 @@
 
 .. include:: VERSION.rst
 
+Versioning rules.
+=================
+
+We use **major.minor** schema.
+
+Until we reach 5000 words **major** is 0. **minor** updated from time to time.
+
 Comment syntax convention.
 ==========================