Downgrade from 6.8 to 5.6


Elastic 6.8 works great, but because of 3rd party software we have to downgrade to version 5.6, so l wonder how can l downgrade to 5.6 version.

Thank you very much

You will need to reindex your data into the 5.6 cluster as you can not downgrade Elasticsearch in place.

So purge, install and reindex?

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