CrateDB Doubling Down on Permissive Licensing and the Elasticsearch Lockdown TL;DR Crate.io will: no longer use Elastic’s Elasticsearch as an upstream project for CrateDB and will switch to a fork open source its entire codebase under the APLv2 with CrateDB 4.5 As you might already know, CrateDB relies on Elasticsearch code for its inner workings. A few days ago Elastic announced that they closed