CodeIgniter is a powerful PHP framework with a very small footprint, built for developers who need a simple and elegant toolkit to create full-featured web applications.
1: Overwrite SDK files
You need the updated CodeIgniter files from the system/ directory. To do so, you can't simply copy/paste the folder. You will need to remove it (it would be a good idea to first do a backup just in case) and then ...
By bruno01, February 4, 2016