diff --git a/VERSION b/VERSION
index 60a2d3e..44bb5d1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.4.0
\ No newline at end of file
+0.4.1
\ No newline at end of file
diff --git a/docs/source/changelog.rst b/docs/source/changelog.rst
index 9c16df1..185a13e 100644
--- a/docs/source/changelog.rst
+++ b/docs/source/changelog.rst
@@ -1,6 +1,9 @@
 Changelog
 =========
 
+* :release:`0.4.1 <2015-09-02>`
+* :bug:`-` Simplified ACLs (refactoring)
+
 * :release:`0.4.0 <2015-08-19>`
 * :support:`-` Added support for JSON schema draft 04
 * :support:`-` RAML is now parsed using ramlfications instead of pyraml-parser
diff --git a/docs/source/processors.rst b/docs/source/processors.rst
index 6772796..659755c 100644
--- a/docs/source/processors.rst
+++ b/docs/source/processors.rst
@@ -12,7 +12,8 @@ A processor receives a number of keyword arguments:
 
 * ``kwargs['instance']`` is the object instance being created or updated
 * ``kwargs['new_value']`` is the new value being set, or the value returned by the previous processor if there are multiple processors on the same field
-* ``kwargs['field']`` is the name of the field
+* ``kwargs['field'].name`` is the name of the field
+* ``kwargs['field'].params`` is the object containing the database field params, e.g. `min_length`
 * ``kwargs['request']`` is the request object which includes the user object `request.user`
 
 E.g.
diff --git a/setup.py b/setup.py
index 24cb7d5..3a4472c 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
     'inflection',
     'transaction',
     'six',
-    'nefertari>=0.5.0',
+    'nefertari>=0.5.1',
 ]
 
 setup(name='ramses',