Downgrade 7.16.1 to 7.10

Elastic Stack Elasticsearch
1

Hello Team,

We are in situation where we want to downgrade from7.16.1 to 7.10.2 , we are using Graylog 4 , Mongodb & Elasticsearch
Do I need to downgrade the whole stack, or can I downgrade partly?

Please guide,
Regards,
SAM

2

Elasticsearch does not support downgrades, you will need to create a new cluster in 7.10.2 and reindex the data from your 7.16.2 cluster.

3

Please note though that Elasticsearch 7.10 is now EOL and no longer supported.