[[search-request-seq-no-primary-term]]
=== Sequence Numbers and Primary Term

Returns the sequence number and primary term of the last modification to each search hit.
See <<optimistic-concurrency-control>> for more details.

[source,js]
--------------------------------------------------
GET /_search
{
    "seq_no_primary_term": true,
    "query" : {
        "term" : { "user" : "kimchy" }
    }
}
--------------------------------------------------
// CONSOLE

[[search-request-version]]
=== Version

Returns a version for each search hit.

[source,js]
--------------------------------------------------
GET /_search
{
    "version": true,
    "query" : {
        "term" : { "user" : "kimchy" }
    }
}
--------------------------------------------------
// CONSOLE