ksqlDB is a fast moving project. Try the latest additions as soon as possible through the standalone distribution, which is free to use. The source is available on GitHub.
A new release goes out roughly once per month. The current version is 0.10.0. The standalone edition is licensed under the Confluent Community License and is not commercially supported by Confluent.Get standalone ksqlDB
Are you part of a business that wants to use ksqlDB in a mission critical setting? Try the distribution shipped with Confluent Platform, which includes plugins for using ksqlDB in crucial environments, such as RBAC. Enterprise support for ksqlDB is available through a subscription to Confluent Platform.
Each new version of the Confluent Platform distribution wraps a specific, previously shipped version of the standalone distribution. See the version matrix for more detail.Get Confluent Platform