diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
index a2067fb..71656be 100644
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -55,7 +55,7 @@
  * @var	string
  *
  */
-	const CI_VERSION = '3.1.2';
+	const CI_VERSION = '3.1.3-dev';
 
 /*
  * ------------------------------------------------------
diff --git a/user_guide_src/source/conf.py b/user_guide_src/source/conf.py
index 2f44e0c..4d2edbe 100644
--- a/user_guide_src/source/conf.py
+++ b/user_guide_src/source/conf.py
@@ -48,9 +48,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '3.1.2'
+version = '3.1.3-dev'
 # The full version, including alpha/beta/rc tags.
-release = '3.1.2'
+release = '3.1.3-dev'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/user_guide_src/source/installation/downloads.rst b/user_guide_src/source/installation/downloads.rst
index 6c1f007..5992ba2 100644
--- a/user_guide_src/source/installation/downloads.rst
+++ b/user_guide_src/source/installation/downloads.rst
@@ -2,7 +2,8 @@
 Downloading CodeIgniter
 #######################
 
--  `CodeIgniter v3.1.2 (Current version) <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.1.2>`_
+-  `CodeIgniter v3.1.3 (Current version) <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.1-stable>`_
+-  `CodeIgniter v3.1.2 <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.1.2>`_
 -  `CodeIgniter v3.1.1 <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.1.1>`_
 -  `CodeIgniter v3.1.0 <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.1.0>`_
 -  `CodeIgniter v3.0.6 <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.0.6>`_
diff --git a/user_guide_src/source/installation/upgrade_313.rst b/user_guide_src/source/installation/upgrade_313.rst
new file mode 100644
index 0000000..71afc6f
--- /dev/null
+++ b/user_guide_src/source/installation/upgrade_313.rst
@@ -0,0 +1,14 @@
+#############################
+Upgrading from 3.1.2 to 3.1.3
+#############################
+
+Before performing an update you should take your site offline by
+replacing the index.php file with a static one.
+
+Step 1: Update your CodeIgniter files
+=====================================
+
+Replace all files and directories in your *system/* directory.
+
+.. note:: If you have any custom developed files in these directories,
+	please make copies of them first.
diff --git a/user_guide_src/source/installation/upgrading.rst b/user_guide_src/source/installation/upgrading.rst
index 4e0b045..bc96e20 100644
--- a/user_guide_src/source/installation/upgrading.rst
+++ b/user_guide_src/source/installation/upgrading.rst
@@ -8,6 +8,7 @@
 .. toctree::
 	:titlesonly:
 
+	Upgrading from 3.1.2 to 3.1.3 <upgrade_313>
 	Upgrading from 3.1.1 to 3.1.2 <upgrade_312>
 	Upgrading from 3.1.0 to 3.1.1 <upgrade_311>
 	Upgrading from 3.0.6 to 3.1.0 <upgrade_310>