Have you started working on CodeIgniter's latest version 4 that supports PHP 7+? Are you currently going through the documentation installation using composer and everything seems to be fine, except for one comment under the Cons section? Do you know what they are referring to and what checks you should monitor? The comment mentions that you still need to check for app/Config changes after updating. Have you encountered this issue yet or are you wondering how to prevent it from happening? What steps are you taking to ensure a smooth transition to the new version of CodeIgniter?
