Google will drop support for data-vocabulary.org structured data on 6th April
Data-vocabulary.org is a popular data markup tool used by many sites which helps to optimise rich results in Google. However, they have announced that Google will no longer support this tool anymore.
This means site owners will need to convert to the schema.org markup before 6th April to ensure they keep their rich results.
Google announced that after this change, errors and warning will start showing in search console if you have not changed over. So be sure to update your schema so you don’t lose your rich results.