Upgrading from 2.x to 3.x

bash

composer require cakephp/authentication:^3.0 -W

or adjust your composer.json file manually and perform composer update -W

Breaking changes

Type declarations were added to all function parameter and returns where possible. These are intended to match the docblock annotations, but include fixes for incorrect annotations.
Type declarations were added to all class properties where possible. These also include some fixes for incorrect annotations.
\Authentication\Identifier\IdentifierInterface::CREDENTIAL_USERNAME was moved to \Authentication\Identifier\AbstractIdentifier::CREDENTIAL_USERNAME.
\Authentication\Identifier\IdentifierInterface::CREDENTIAL_PASSWORD was moved to \Authentication\Identifier\AbstractIdentifier::CREDENTIAL_PASSWORD.
\Authentication\Identifier\IdentifierInterface::CREDENTIAL_TOKEN was moved to \Authentication\Identifier\TokenIdentifier::CREDENTIAL_TOKEN.
\Authentication\Identifier\IdentifierInterface::CREDENTIAL_JWT_SUBJECT was moved to \Authentication\Identifier\JwtSubjectIdentifier::CREDENTIAL_JWT_SUBJECT.
AuthenticationMiddleware cannot be configured anymore. Configuration needs to happen on the AuthenticationService object.