DataStax has released version 4.0 of its Node.js Driver for Apache Cassandra and version 2.0 of the DataStax Enterprise Node.js Driver, introducing new features such as RequestLogger, Object Mapper, improved load-balancing policy, support for JavaScript BigInt type, exposed internal driver metrics, explicit local data center setting, and control over retrying when a timeout/error is encountered. These updates aim to enhance the performance and functionality of the drivers.