Key Features

• PHP 7.2 required.
• Streamlined APIs with all deprecated methods and behavior removed.
• Additional typehints across the framework giving you errors faster.
• Improved error messages across the framework.
• A refreshed application skeleton design.
• New database types for fixed length strings (CHAR), datetime with microseconds, and datetime with timezone types.
• Table now features OrFail methods that raise exceptions on failure making error handling more explicit and straightforward.
• Middleware for CSP headers, Form tampering prevention, and HTTPS enforcement.
• Cake\Routing\Asset to make generating asset URLs simple from anywhere in your application code.
• FormHelper now generates HTML5 validation errors.
• FormHelper now generates HTML5 datetime input elements.

Upgrading to 4.0

While 4.0 contains a number of breaking changes we have prepared an exhaustive migration guide covering all the deprecated, removed, and new features.

Additionally, we have put together an upgrade guide which gives a step-by-step guide and CLI tool to help you upgrade your application. These documents and companion tool will only improve as we collect more feedback from people upgrading.

Contributors to 4.0.0

CakePHP 4.0 would not have been possible without the hard work and contributions from the following folks:

• ADmad
• Albert Cansado Solà
• Chetan Varshney
• Corey Taylor
• Edgaras Janušauskas
• Erwane Breton
• Florian Krämer
• Ian den Hartog
• Iandenh
• Ilie Pandia
• Jason Horvath
• Jeremy Harris
• Jorge González
• José Lorenzo Rodríguez
• Ján Súkeník
• Karma Dice
• Marc Würth
• Marcelo Rocha
• Mark Scherer
• Mark Story
• Matthew Brown
• Michael Hoffmann
• Robert Pustułka
• Tomas Saghy
• Val Bancer
• Yevgeny Tomenko
• Zuluru
• andrii-pukhalevych
• bancer
• dan
• gregs
• kawaguchi masaki
• mirko-pagliai
• ndm2
• nojimage
• o0h
• othercorey
• saeideng
• sohelrana820
• val

Thank you for all you’ve done to make CakePHP 4 a reality.