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Upgrading from 4.0.5 to 4.1.0 or 4.1.1

user_guide_src/source/installation/upgrade_410.rst

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###################################### Upgrading from 4.0.5 to 4.1.0 or 4.1.1 ######################################

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

  • :ref:Composer Installation App Starter Upgrading <app-starter-upgrading>
  • :ref:Composer Installation Adding CodeIgniter4 to an Existing Project Upgrading <adding-codeigniter4-upgrading>
  • :ref:Manual Installation Upgrading <installing-manual-upgrading>

.. contents:: :local: :depth: 2

Breaking Changes

Legacy Autoloading

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