Siren Investigate is a “Kept in Sync” fork: we track the latest Kibana deployment and we’re committed to do so in the future, so you get all the good stuff in there, don't worry.

Unlike Kibana however Siren Investigate versions are not “locked in” to a specific Elasticsearch version. In other words Siren Investigate will work on later Elasticsearch than its current version. Therefore, given some integration time after each release, you can expect Siren Investigate to be able to run also on the latest available Elasticsearch.