ElasticSearch and Kibana become free software (again) Back in 2021, the ElasticSearch search engine and Kibana visualization platform https://lwn.net/Articles/843274/ under the non-free Server Side Public License (SSPL). Now, Elastic (the company owning those projects) has https://www.elastic.co/blog/elasticsearch-is-open-source-again that those projects will also be distributable under the Affero GPL license. We never stopped believing and behaving like an open source community after we changed the license. But being able to use the term Open Source, by using AGPL, an OSI approved license, removes any questions, or fud, people might have. https://lwn.net/Articles/987850/