- Integrated Data Dictionary: the new dictionary is created to replace the the .frm and InnoDB DD dictionary. This feature is needed to support transactional DDL operation in the future.
- Encryption of transaction log (redo and undo log)
In MySQL with InnoDB, there are two types of logs: binary log and transaction log. The binlog is a history of the writes to the database. The transaction log includes redo and undo log maintain information of InnoDB transactions.