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Required

• This upgrade is for Elasticsearch 6.8.6 and 7.5.2 or higher with a Search feed created on Swarm 11 or higher.

• If you are using elasticsearch 6.8.6 see https://perifery.atlassian.net/wiki/spaces/public/pages/2443804878/How+to+Upgrade+Swarm#Upgrading-from-Unsupported-Elasticsearch for a specific version and live-upgrade ordering requirements.

• For users running Elasticsearch 7.5.2, use the latest configure_elasticsearch_with_swarm_search.py script on each node instead of directly installing the 7.17.9 RPM. This script updates /etc/sysconfig/elasticsearch to use the default bundled JDK from Elasticsearch.

• See Migrating from Older Elasticsearch for migrating from Elasticsearch 2.3.3 or 5.6.12.