Merge branch '3.1-stable' into develop

Conflicts resolved:
	system/core/CodeIgniter.php
	tests/codeigniter/libraries/Form_validation_test.php
	user_guide_src/source/changelog.rst
	user_guide_src/source/conf.py
	user_guide_src/source/installation/downloads.rst
	user_guide_src/source/installation/upgrading.rst

5 files changed, 43 insertions, 4 deletions

diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 767b2486d..59b4e0fd9 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -107,16 +107,39 @@ Release Date: Not Released
       - Removed the second (out of three) parameter from the :php:func:`form_upload()` function (it was never used).
 
 
-Version 3.1.5
+Version 3.1.6
 =============
 
 Release Date: Not Released
 
 
+Version 3.1.5
+=============
+
+Release Date: Jun 19, 2017
+
+-  **Security**
+
+   -  :doc:`Form Validation Library <libraries/form_validation>` rule ``valid_email`` could be bypassed if ``idn_to_ascii()`` is available.
+
+-  General Changes
+
+   -  Updated :doc:`Form Helper <helpers/form_helper>` function :php:func:`form_label()` to accept HTML attributes as a string.
+
+Bug fixes for 3.1.5
+-------------------
+
+-  Fixed a bug (#5070) - :doc:`Email Library <libraries/email>` didn't properly detect 7-bit encoding.
+-  Fixed a bug (#5084) - :doc:`XML-RPC Library <libraries/xmlrpc>` errored because of a variable name typo.
+-  Fixed a bug (#5108) - :doc:`Inflector Helper <helpers/inflector_helper>` function :php:func:`singular()` didn't properly handle 'quizzes'.
+-  Fixed a regression (#5131) - private controller methods triggered PHP errors instead of a 404 response.
+-  Fixed a bug (#5150) - :doc:`Database Forge <database/forge>` method ``modify_column()`` triggered an error while renaming columns with the 'oci8', 'pdo/oci' drivers.
+-  Fixed a bug (#5155) - :doc:`Query Builder <database/query_builder>` method ``count_all_results()`` returned incorrect result for queries using ``LIMIT``, ``OFFSET``.
+
 Version 3.1.4
 =============
 
-Release Date: March 20, 2017
+Release Date: Mar 20, 2017
 
 -  **Security**
 
diff --git a/user_guide_src/source/helpers/form_helper.rst b/user_guide_src/source/helpers/form_helper.rst
index 97595c90b..43a20e18c 100644
--- a/user_guide_src/source/helpers/form_helper.rst
+++ b/user_guide_src/source/helpers/form_helper.rst
@@ -485,7 +485,7 @@ The following functions are available:
 
 	:param	string	$label_text: Text to put in the <label> tag
 	:param	string	$id: ID of the form element that we're making a label for
-	:param	string	$attributes: HTML attributes
+	:param	mixed	$attributes: HTML attributes
 	:returns:	An HTML field label tag
 	:rtype:	string
 
diff --git a/user_guide_src/source/installation/downloads.rst b/user_guide_src/source/installation/downloads.rst
index f36857e57..fb9222df9 100644
--- a/user_guide_src/source/installation/downloads.rst
+++ b/user_guide_src/source/installation/downloads.rst
@@ -3,7 +3,8 @@ Downloading CodeIgniter
 #######################
 
 -  `CodeIgniter v3.2.0-dev (Current version) <https://codeload.github.com/bcit-ci/CodeIgniter/zip/develop>`_
--  `CodeIgniter v3.1.5-dev <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.1-stable>`_
+-  `CodeIgniter v3.1.6-dev <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.1-stable>`_
+-  `CodeIgniter v3.1.5 <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.1.5>`_
 -  `CodeIgniter v3.1.4 <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.1.4>`_
 -  `CodeIgniter v3.1.3 <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.1.3>`_
 -  `CodeIgniter v3.1.2 <https://codeload.github.com/bcit-ci/CodeIgniter/zip/3.1.2>`_
diff --git a/user_guide_src/source/installation/upgrade_316.rst b/user_guide_src/source/installation/upgrade_316.rst
new file mode 100644
index 000000000..e382c20ab
--- /dev/null
+++ b/user_guide_src/source/installation/upgrade_316.rst
@@ -0,0 +1,14 @@
+#############################
+Upgrading from 3.1.5 to 3.1.6
+#############################
+
+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 b76392d05..3383796d0 100644
--- a/user_guide_src/source/installation/upgrading.rst
+++ b/user_guide_src/source/installation/upgrading.rst
@@ -9,6 +9,7 @@ upgrading from.
 	:titlesonly:
 
 	Upgrading from 3.1.3+ to 3.2.x <upgrade_320>
+	Upgrading from 3.1.5 to 3.1.6 <upgrade_316>
 	Upgrading from 3.1.4 to 3.1.5 <upgrade_315>
 	Upgrading from 3.1.3 to 3.1.4 <upgrade_314>
 	Upgrading from 3.1.2 to 3.1.3 <upgrade_313>