The Aerospike REST Gateway 2.0 provides a well-known interface to the Aerospike Database and offers various architectural solutions for applications that don't require a full-fledged Aerospike client integration. The new version includes significant updates, such as support for Aerospike server 6.0 and server 6.1 features, complete retooling of the Operations API, and added query capabilities like query by partition and response pagination. Additionally, the REST Gateway 2.0 introduces batch write, batch delete, and batch UDF support, allowing for more efficient data operations, as well as improved metrics and documentation. The new version's Operations V2 marks a significant redesign of the API with a focus on ease of use and robustness, supporting list, map, bit, and HLL operations, among others.