Xenforo 2.1.3 and Xenforo Enhanced Search 2.1.3

[sajal]

We are using this configuration:
Xenforo 2.1.3
Xenforo Enhanced Search 2.1.3

What's the best Elasticsearch version we should use along with this? And I'm just curious, does this Opensearch is supported with these versions?
Xenforo 2.1.3 and Xenforo Enhanced Search 2.1.3

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