Index: docs/howto/custom-model-fields.txt
===================================================================
--- docs/howto/custom-model-fields.txt	(revision 10314)
+++ docs/howto/custom-model-fields.txt	(working copy)
@@ -198,7 +198,6 @@
     * :attr:`~django.db.models.Field.blank`
     * :attr:`~django.db.models.Field.null`
     * :attr:`~django.db.models.Field.db_index`
-    * :attr:`~django.db.models.Field.core`
     * :attr:`~django.db.models.Field.rel`: Used for related fields (like
       :class:`ForeignKey`). For advanced use only.
     * :attr:`~django.db.models.Field.default`
@@ -206,7 +205,6 @@
     * :attr:`~django.db.models.Field.serialize`: If ``False``, the field will
       not be serialized when the model is passed to Django's :ref:`serializers
       <topics-serialization>`. Defaults to ``True``.
-    * :attr:`~django.db.models.Field.prepopulate_from`
     * :attr:`~django.db.models.Field.unique_for_date`
     * :attr:`~django.db.models.Field.unique_for_month`
     * :attr:`~django.db.models.Field.unique_for_year`
@@ -216,6 +214,8 @@
     * :attr:`~django.db.models.Field.db_tablespace`: Currently only used with
       the Oracle backend and only for index creation. You can usually ignore
       this option.
+    * :attr:`~django.db.models.Field.auto_created`: Used with internal 
+      creation counter. For advanced use only. 
 
 All of the options without an explanation in the above list have the same
 meaning they do for normal Django fields. See the :ref:`field documentation