A beta version of Aiven's Apache Flink service is now publicly available, allowing users to create real-time streaming analytics and ETL applications using SQL without coding. Apache Flink is a framework and distributed processing engine for stateful computations over unbounded and bounded data streams. It is often used in various industries such as e-commerce, finance, and more to speed up business decisions by providing real-time insights derived from on-the-fly data. Aiven's Apache Flink service can be tested with the free Basic level support during the beta phase but not for full production use.