Apache Druid

Apache Druid is a real-time analytics database designed for interactive dashboards and high-concurrency queries. It supports streaming and batch ingestion and can be queried with SQL as well as native queries. It is developed by the Apache Software Foundation and licensed under Apache-2.0, so it is open source and free to use. Druid is run self-managed, including on Kubernetes through the druid-operator. Third-party vendors offer commercial versions, but none was verified here. It can also be used for time-series data alongside its main analytical role. The latest release is Druid 38.0.0, dated 1 October 2026. Buyers should note that this release drops support for Java 17, so it needs a newer Java runtime, and building it from source requires JDK 25. Anyone planning an upgrade should check their Java environment first, since an existing Java 17 deployment will have to move on before adopting this version. No licence change, closed product line or dormant status was found, and the project is active, with a release published on the date given.