7.0.0

Breaking Changes

• PHP 8.4+ is now required (up from PHP >= 5.6 in the last released 2.x line).
• License changed from BSD to MIT.
• Removed aura/installer-default from composer.json.
• Removed Aura.Di configuration files.
• Filter::apply() no longer mutates $values by reference and no longer returns bool. It now accepts array|object by value and returns a FilterResultInterface containing the success flag, the values, and a FailureCollectionInterface. See the upgrade guide for migration details.
• Fieldset::filter() and Collection::filter() now return bool with an explicit return-type declaration; getFailures() now returns Aura\Filter_Interface\FailuresInterface (typed).
• Collection::getFailures() now returns a flat FailuresInterface keyed with dot-notation paths (e.g. "0.email") instead of a nested array.
• CollectionIterator methods (current(), key(), next(), rewind(), valid()) now carry explicit return-type declarations; properties are typed.
• All classes now declare strict_types=1 and use full PHP 8.x type declarations throughout.
• Removed Aura.Di integration — no config/ directory or container configuration is shipped.
• aura/filter-interface now required at ^7.0 (introduces FilterInterface, FilterResultInterface, FailureCollectionInterface, FailuresInterface, FailureInterface, and FilterResult).
• CI moved from Travis CI to GitHub Actions; PHPUnit dependency changed from yoast/phpunit-polyfills to phpunit/phpunit: ^11.0.

New Features

• ADD: Filter\Failure — concrete FailureInterface implementation for closure-based filter rules. Uses PHP 8 readonly constructor-promoted properties. Implements JsonSerializable via FailureInterface.
• ADD: Filter\FailureCollection — implements the full FailureCollectionInterface (both the write side add() / set() and the read side forField() / forPath() / getMessages() / getNestedMessages()). Stores plain string messages; wraps them in Failure value objects on demand.
• ADD: FailureCollection::getNestedMessages() — reconstructs a nested array structure from flat dot-notation keys, mirroring the shape of the original input data.
• ADD: FailureCollection::forPath(string $path) — dot-notation path lookup returning FailureInterface[].
• ADD: FailureCollection::isEmpty() — returns true when no failures are recorded.
• ADD: Filter::apply() now returns FilterResultInterface (a FilterResult value object) containing isSuccess(), getValues(), and getFailures().
• ADD: PHP 8.2, 8.3, 8.4, and 8.5 support added to CI test matrix.
• ADD: aura/filter-interface package dependency introducing SubjectFilterInterface, FilterResultInterface, FilterResult, and FailureInterface.

Changes

• CHG: Filter::setRule() and Filter::addRule() parameter types are now string $field, string $message, \Closure $closure (strict types).
• CHG: Filter::getMessages() parameter is now ?string $field = null (typed); return type is array.
• CHG: Filter::addMessages() parameter $messages is now string|array (union type).
• CHG: Fieldset::filter() now consumes FilterResultInterface from Filter::apply() and aggregates nested fieldset/collection failures automatically using dot-notation prefixing.
• CHG: Fieldset::getFailures() return type is now declared as FailuresInterface.
• CHG: Collection::fill() return type is now declared as void.
• CHG: Collection::filter() return type is now declared as bool.
• CHG: Collection::getFailures() return type is now declared as FailuresInterface.
• CHG: License header updated to MIT throughout all source files.
• DOC: README updated with PHP version requirements.