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Upgrading from 4.0.x to 4.0.4

user_guide_src/source/installation/upgrade_404.rst

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############################# Upgrading from 4.0.x to 4.0.4 #############################

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

CodeIgniter 4.0.4 fixes a bug in the implementation of :doc:Controller Filters </incoming/filters>, breaking code implementing the FilterInterface.

Breaking Changes

Update FilterInterface Declarations

The method signatures for after() and before() must be updated to include $arguments. The function definitions should be changed from::

public function before(RequestInterface $request)
public function after(RequestInterface $request, ResponseInterface $response)

to::

public function before(RequestInterface $request, $arguments = null)
public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)