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-rw-r--r--user_guide_src/source/installation/upgrade_300.rst13
-rw-r--r--user_guide_src/source/libraries/config.rst6
2 files changed, 18 insertions, 1 deletions
diff --git a/user_guide_src/source/installation/upgrade_300.rst b/user_guide_src/source/installation/upgrade_300.rst
index 3f96a31e2..75aeea715 100644
--- a/user_guide_src/source/installation/upgrade_300.rst
+++ b/user_guide_src/source/installation/upgrade_300.rst
@@ -556,6 +556,19 @@ CodeIgniter 3.1+.
.. note:: This method is still available, but you're strongly encouraged to remove its usage
sooner rather than later.
+Config library method system_url()
+==================================
+
+Usage of ``CI_Config::system_url()`` encourages insecure coding practices.
+Namely, your CodeIgniter *system/* directory shouldn't be publicly accessible
+from a security point of view.
+
+Because of this, this method is now deprecated and scheduled for removal in
+CodeIgniter 3.1+.
+
+.. note:: This method is still available, but you're strongly encouraged to remove its usage
+ sooner rather than later.
+
***********************************************************
Step 18: Check your usage of Text helper highlight_phrase()
***********************************************************
diff --git a/user_guide_src/source/libraries/config.rst b/user_guide_src/source/libraries/config.rst
index b31815799..3116b768a 100644
--- a/user_guide_src/source/libraries/config.rst
+++ b/user_guide_src/source/libraries/config.rst
@@ -245,4 +245,8 @@ Class Reference
:returns: URL pointing at your CI system/ directory
:rtype: string
- This method retrieves the URL to your CodeIgniter system/ directory. \ No newline at end of file
+ This method retrieves the URL to your CodeIgniter system/ directory.
+
+ .. note:: This method is DEPRECATED because it encourages usage of
+ insecure coding practices. Your *system/* directory shouldn't
+ be publicly accessible. \ No newline at end of file