diff --git a/docs/releases/1.4.11.txt b/docs/releases/1.4.11.txt
new file mode 100644
index 0000000000..b0879efaf3
--- /dev/null
+++ b/docs/releases/1.4.11.txt
@@ -0,0 +1,8 @@
+===========================
+Django 1.4.11 release notes
+===========================
+
+*Under development*
+
+Django's vendored version of six, :mod:`django.utils.six`, has been upgraded to
+the latest release (1.5.2).
diff --git a/docs/releases/1.5.6.txt b/docs/releases/1.5.6.txt
new file mode 100644
index 0000000000..994685ceaa
--- /dev/null
+++ b/docs/releases/1.5.6.txt
@@ -0,0 +1,15 @@
+==========================
+Django 1.5.6 release notes
+==========================
+
+*Under development*
+
+Django's vendored version of six, :mod:`django.utils.six`, has been upgraded to
+the latest release (1.5.2).
+
+Bugfixes
+========
+
+* Fixed :class:`~django.contrib.auth.backends.ModelBackend` raising
+  ``UnboundLocalError`` if :func:`~django.contrib.auth.get_user_model`
+  raised an error (#21439).
diff --git a/docs/releases/index.txt b/docs/releases/index.txt
index 81c418f4b6..63fccc97c5 100644
--- a/docs/releases/index.txt
+++ b/docs/releases/index.txt
@@ -38,6 +38,7 @@ Final releases
 .. toctree::
    :maxdepth: 1
 
+   1.5.6
    1.5.5
    1.5.4
    1.5.3
@@ -50,6 +51,7 @@ Final releases
 .. toctree::
    :maxdepth: 1
 
+   1.4.11
    1.4.10
    1.4.9
    1.4.8