Couchbase's 7.0 release extends its multi-document, distributed ACID transactions to the N1QL query language, enhancing the database platform's capabilities for application developers. This update allows for familiar transactional constructs like START TRANSACTION, SAVEPOINT, ROLLBACK, and COMMIT, making it more accessible for developers accustomed to relational database management systems (RDBMS). The transactions maintain data integrity by ensuring changes are isolated until they are fully committed, supporting the full range of N1QL Data Manipulation Language commands. These enhancements facilitate a safer environment for data manipulation, allowing developers to modify and verify data before committing changes. The platform's horizontal scalability is maintained as all transaction management is distributed across different Query Services, minimizing the risk of a central point of failure. However, developers are advised to use N1QL transactions judiciously due to potential impacts on performance and resource usage, particularly in high-volume mutation scenarios.