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Upgrading from 1.6.3 to 1.7.0

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Before performing an update you should take your site offline by +replacing the index.php file with a static one.

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Step 1: Update your CodeIgniter files

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Replace these files and directories in your “system” folder with the new +versions:

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  • system/codeigniter
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  • system/database
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  • system/helpers
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  • system/language
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  • system/libraries
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Note

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If you have any custom developed files in these folders please +make copies of them first.

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Step 2: Update your Session Table

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If you are using the Session class in your application, AND if you are +storing session data to a database, you must add a new column named +user_data to your session table. Here is an example of what this column +might look like for MySQL:

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user_data text NOT NULL
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To add this column you will run a query similar to this:

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ALTER TABLE `ci_sessions` ADD `user_data` text NOT NULL
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You’ll find more information regarding the new Session functionality in +the Session class page.

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Step 3: Update your Validation Syntax

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This is an optional, but recommended step, for people currently +using the Validation class. CI 1.7 introduces a new Form Validation +class, which deprecates the old +Validation library. We have left the old one in place so that existing +applications that use it will not break, but you are encouraged to +migrate to the new version as soon as possible. Please read the user +guide carefully as the new library works a little differently, and has +several new features.

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Step 4: Update your user guide

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Please replace your local copy of the user guide with the new version, +including the image files.

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