![]() ![]() ![]() Preparing to upgrade Elasticsearch nodesĮlasticsearch nodes cannot be downgraded after upgrading. To upgrade from earlier versions of 5.6 to version 6.8.23, you need a full cluster restart or you must upgrade first to version 5.6.16 before upgrading to version 6. Rolling upgrades are only supported from Elasticsearch version 5.6.16 to Elasticsearch version 6.8.23. For more information on version upgrades in general, the different methods available, and everything you need to know prior to initiating the upgrade, you can see our complete guide here: How to Upgrade Elasticsearch Versions. In this article, we will focus on upgrading Elasticsearch 5.6.16 to Elasticsearch 6.8.23. Upgrade Elasticsearch 5.6.16 to Elasticsearch 6.8.23 ![]()
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