I am using probably 5% of what ES is capable of, and now I feel even further behind. But, it&#x27;s amazing to see some of these things get polished and improved on an already powerful system.<p>They were even kind enough to make an upgrade plugin: <a href="https:&#x2F;&#x2F;github.com&#x2F;elastic&#x2F;elasticsearch-migration" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;elastic&#x2F;elasticsearch-migration</a>