Is there a way to bring back in clause without using OR in query string

Elastic Stack Elasticsearch
1

Is there a way to bring back the "in" query without using OR in ES 7.

For example: q=my-field:(value1 value2 value3) instead of q=my-field:(value1 OR value2 OR value3)

2

I think query string has a default operator. See if they'll do you.

You could also use a match query if you don't need the fancy field selecting syntax. That also supports matching any of the terms.