20 files declare their use of DateRecurItem in Recurring Dates Field 3.0.x

DateRecurBasicFormatter.php in src/Plugin/Field/FieldFormatter/DateRecurBasicFormatter.php

DateRecurBasicWidget.php in src/Plugin/Field/FieldWidget/DateRecurBasicWidget.php

DateRecurBasicWidgetTest.php in tests/src/Functional/DateRecurBasicWidgetTest.php

DateRecurCachedHooks.php in src/DateRecurCachedHooks.php

DateRecurFieldItemListTest.php in tests/src/Kernel/DateRecurFieldItemListTest.php

DateRecurFieldItemTest.php in tests/src/Kernel/DateRecurFieldItemTest.php

DateRecurFieldSettingsTest.php in tests/src/Functional/DateRecurFieldSettingsTest.php

DateRecurFieldTest.php in tests/src/Kernel/DateRecurFieldTest.php

DateRecurOccurrences.php in src/DateRecurOccurrences.php

DateRecurOccurrenceTableAttachedTest.php in tests/src/Kernel/DateRecurOccurrenceTableAttachedTest.php

DateRecurPartGrid.php in src/DateRecurPartGrid.php

DateRecurPartGridTest.php in tests/src/Kernel/DateRecurPartGridTest.php

DateRecurRruleConstraintValidator.php in src/Plugin/Validation/Constraint/DateRecurRruleConstraintValidator.php

DateRecurRulePartConstraintValidator.php in src/Plugin/Validation/Constraint/DateRecurRulePartConstraintValidator.php

DateRecurSubItem.php in tests/modules/date_recur_subfield/src/Plugin/Field/FieldType/DateRecurSubItem.php

DateRecurTest.php in tests/src/Kernel/DateRecurTest.php

DateRecurViewsFieldAttachedTest.php in tests/src/Kernel/DateRecurViewsFieldAttachedTest.php

DateRecurViewsOccurrenceFilterAttachedTest.php in tests/src/Kernel/DateRecurViewsOccurrenceFilterAttachedTest.php

DrEntityTest.php in tests/modules/date_recur_entity_test/src/Entity/DrEntityTest.php

DrEntityTestRev.php in tests/modules/date_recur_entity_test/src/Entity/DrEntityTestRev.php