The announcement claims:
> All changes to Elasticsearch were sent as upstream pull requests (#42066, #42658, #43284, #43839, #53643, #57271, #59563, #61400, #64513), and we then included the “oss” builds offered by Elastic in our distribution. This ensured that we were collaborating with the upstream developers and maintainers, and not creating a “fork” of the software.
With links on the issue numbers. Why should we not understand this as contributing back?