[ci skip] Add upgrade instructions for 3.0.1

1 files changed, 19 insertions, 0 deletions

diff --git a/user_guide_src/source/installation/upgrade_301.rst b/user_guide_src/source/installation/upgrade_301.rst
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+#############################
+Upgrading from 3.0.0 to 3.0.1
+#############################
+
+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.
+
+Step 2: Update your CLI error templates
+=======================================
+
+Replace all files under your *application/errors/cli/* directory.
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