Updating to the RC

You can use composer to upgrade to the beta version of CakePHP 4.0.0:

php composer.phar require --update-with-dependencies "cakephp/cakephp:4.0.0-RC1"

We would greatly appreciate it if you temporarily upgraded your application, and ran your tests. By opening issues for any regressions in the release candidate, we can help ensure a smoother release of 4.0.0 before the stable release.

What’s new in 4.0.0?

The migration guide has a complete list of what’s new in 4.0.0, and what has been deprecated. We recommend you give that page a read when upgrading.

Changes since 4.0.0-beta4

• A new compact route _path format has been added to Router::url(). This new format accepts the same Controller::action format that route definition can use.
• The http and console libraries have had standalone packages created.
• Development error pages now preserve inline code highlighting and newlines in exception messages.
• SecurityComponent is now deprecated, and replaced by the FormProtectionComponent.
• The ConsoleErrorHandler was moved to the Error package.
• Validation::time() now accepts microseconds.
• SameSite cookie support was added for PHP>7.3.0
• New database types for char, datetimefractional and timestampfractional were added. The new datetime types allow representation of time values including microseconds.
• InstanceConfigTrait::getConfigOrFail() was added.
• New isLinkedTo and isNotLinkedTo rules were added to ORM\RulesChecker.
• Date and FrozenDate objects now use the default timezone instead of UTC. This fixes problems where ‘today’ would not always be today depending on your distance from UTC.
• Controller action dispatching was refactored to make adding a DI container in the future easier.
• Routing prefixes are now PascalCased instead of under_scored. This removes some inflection and normalizes the representation of prefixes.

Contributors to 4.0.0-RC1

We’d like to welcome othercorey to the core team. They have been contributed a number of documentation improvements and driven multiple improvements around how CakePHP handles microseconds across both CakePHP and Chronos.

Thank you to all the contributors that helped make this release happen:

• ADmad
• Corey Taylor
• Edgaras Janušauskas
• Jorge González
• Karma Dice
• Mark Scherer
• Mark Story
• dan
• itosho
• ndm2
• othercorey
• saeideng

As always, we would like to thank all the contributors that opened issues, created pull requests or updated the documentation.