I have been running Graylog 3.3 for a while (alongside ES 6), and have recently upgraded GL to 4 RC2. The update seems neat and I have encountered no bugs thus far. Thanks to the Graylog team for this release !
My question is, are there any motives/advantages/arguments in favour of upgrading to ES 7 ? ES 6 has been stable for me, but I’d be willing to upgrade if there are performence benefits or features in 7 that are beneficial to Graylog.