additionalProperties not working as expected with v11.3.2

[sunkad (Sunitha)]

Sometime in May 2024, additionalProperties false was working as expected, but now with v11.3.2 it does not. Is the property “required” necessary in the schema for this to work?

...    lastModificationDate: {
            type: 'string',
            format: 'date-time'
        },
    **additionalProperties: false**
    }
};