Delta Lake‘s time travel feature provides built-in support for querying previous versions of data using timestamps or version numbers, simplifying access to historical data. Partitioning data by change date optimizes query performance by enabling the system to quickly locate and retrieve the relevant partitions. This approach ensures efficient and optimized access to historical versions for compliance and auditing, without the need for complex custom solutions or additional versioning layers. It also enhances scalability and maintainability by reducing the complexity of managing historical data versions in a lakehouse environment.