Upgrading from 4.0.5 to 4.1.0 or 4.1.1

Please refer to the upgrade instructions corresponding to your installation method.

• Composer Installation App Starter Upgrading
• Composer Installation Adding CodeIgniter4 to an Existing Project Upgrading
• Manual Installation Upgrading

Breaking Changes

Legacy Autoloading

The Autoloader::loadLegacy() method was originally for the transition to CodeIgniter v4. Since v4.1.0, this support was removed. All classes must be namespaced.