Merge branch 'develop' of github.com:EllisLab/CodeIgniter into develop-zip

1 files changed, 33 insertions, 0 deletions

diff --git a/user_guide_src/source/installation/upgrade_300.rst b/user_guide_src/source/installation/upgrade_300.rst
new file mode 100644
index 000000000..4c594ab17
--- /dev/null
+++ b/user_guide_src/source/installation/upgrade_300.rst
@@ -0,0 +1,33 @@
+#############################
+Upgrading from 2.1.0 to 3.0.0
+#############################
+
+.. note:: These upgrade notes are for a version that is yet to be released.
+
+
+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" folder and replace
+your index.php file. If any modifications were made to your index.php
+they will need to be made fresh in this new one.
+
+.. note:: If you have any custom developed files in these folders please
+	make copies of them first.
+
+Step 2: Change References to the SHA Library
+============================================
+
+The previously deprecated SHA library has been removed in CodeIgniter 3.0.
+Alter your code to use the native `sha1()` PHP function to generate a sha1 hash.
+
+Additionally, the `sha1()` method in the :doc:`Encryption Library <../libraries/encryption>` has been removed.
+
+Step 3: Remove $autoload['core'] from your config/autoload.php
+==============================================================
+
+Use of the `$autoload['core']` config array has been deprecated as of CodeIgniter 1.4.1 and is now removed.
+Move any entries that you might have listed there to `$autoload['libraries']` instead.