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Diffstat (limited to 'user_guide_src/source/installation/upgrade_310.rst')
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1 files changed, 38 insertions, 0 deletions
diff --git a/user_guide_src/source/installation/upgrade_310.rst b/user_guide_src/source/installation/upgrade_310.rst new file mode 100644 index 000000000..cae814327 --- /dev/null +++ b/user_guide_src/source/installation/upgrade_310.rst @@ -0,0 +1,38 @@ +############################# +Upgrading from 3.0.6 to 3.1.0 +############################# + +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: Check your PHP version +============================== + +We recommend always running versions that are `currently supported +<https://secure.php.net/supported-versions.php>`_, which right now is at least PHP 5.6. + +PHP 5.2.x versions are now officially not supported by CodeIgniter, and while 5.3.7+ +may be at least runnable, we strongly discourage you from using any PHP versions below +the ones listed on the `PHP.net Supported Versions <https://secure.php.net/supported-versions.php>`_ +page. + +Step 3: If you're using the 'odbc' database driver, check for usage of Query Builder +==================================================================================== + +:doc:`Query Builder <../database/query_builder>` functionality and ``escape()`` can +no longer be used with the 'odbc' database driver. + +This is because, due to its nature, the `ODBC extension for PHP <https://secure.php.net/odbc>`_ +does not provide a function that allows to safely escape user-supplied strings for usage +inside an SQL query (which our :doc:`Query Builder <../database/query_builder>` relies on). + +Thus, user inputs MUST be bound, as shown in :doc:`Running Queries <../database/queries>`, +under the "Query Bindings" section. |