Aerospike Database 6 introduces several new features for developers, including partitioned queries, query pagination, and enhanced batch processing capabilities. The update comes with significant changes, such as the renaming and removal of configuration parameters and statistics tied to previous server versions, reflecting a streamlined query subsystem. Notably, parameters related to the server 5.x query subsystem have been removed, and certain error codes have been updated, which may impact applications. The update also enhances logging by adding histogram log lines for primary and secondary index queries, replacing previous scan log lines, and updating audit trail actions from "scan" to "query." These changes aim to improve performance and maintainability while ensuring compatibility with newer client requirements.