--- a/doc/3.20.rst	Thu May 15 23:18:17 2014 +0200
+++ b/doc/3.20.rst	Thu Oct 23 15:47:17 2014 +0200
@@ -7,6 +7,7 @@
 * virtual relations: a new ComputedRelation class can be used in
   schema.py; its `rule` attribute is an RQL snippet that defines the new
   relation.
+
 * computed attributes: an attribute can now be defined with a `formula`
   argument (also an RQL snippet); it will be read-only, and updated
   automatically.
@@ -26,6 +27,8 @@
   that of Python's ``csv.reader()``.  The old arguments are still supported
   though deprecated.
 
+* the migration environment's ``remove_cube`` function is now called ``drop_cube``.
+
 
 Deprecated Code Drops
 ----------------------