Amazon AWS to Maintain “Open Distro for Elastic Search” due to licensing issues

When important open source projects that AWS and our customers depend on begin restricting access, changing licensing terms, or intermingling open source and proprietary software, we will invest to sustain the open source project and community. As was the case with Java and OpenJDK, our intention is not to fork Elasticsearch, and we will be making contributions back to the Apache 2.0-licensed Elasticsearch upstream project as we develop add-on enhancements to the base open source software. Our aim for Open Distro for Elasticsearch is to provide developers with the freedom to contribute to open source value-added features on top of the Apache 2.0-licensed Elasticsearch upstream project.

Source: aws.amazon.com