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Upgrading from old version 1.7.1 - El Forum - 12-07-2012


I'm using CI 1.7.1, so I need to upgrade.

As I know upgrade process is cumulative, so I need to download every versions since 1.7.2.

The problem is that I can't find where to download it.

There are links on user_guide that are tagged to different versions, but they all point to the latest.

I want to make the complete upgrade process from version 1.7.1 to latest properly.


You don't need to incremental upgrades. You can update to any version. The major changes from 2.x going forward is how you extend your controllers/models. Rather extending Controller, you would use CI_Controller. Same goes for models. A few other details in the [url=""]user guide[/url] for completing the upgrade.

Here's download link for [url=""]CI 2.1.3[/url].

You will also need to merge /application/config/config.php to add some the additional features that have been added since 1.7.2.

Process looks like:
1. Replace system folder from zip
2. Replace index.php
3. Copy application folder to document root to be on same level as system
4. Merge changes from application/config/config.php
5. Update any other application/config files you may have changed
6. Rename how you extended Controllers and Models