TLDR: The need for an open-source alternative to Elasticsearch has recently become more evident; platforms that bundle Open Distro for Elasticsearch are able to future-proof open-source support for free-text search and Elasticsearch.
https://www.logicalclocks.com/blog/elasticsearch-is-dead-long-live-open-distro-for-elasticsearch
https://www.logicalclocks.com/blog/elasticsearch-is-dead-long-live-open-distro-for-elasticsearch