I run db.currentOp(true) on mongoshel(2.6.9), this method returns information on all operations, including operations on idle connections and system operations(contain multiple operation ids.connection ids and multiple client ).

When I ran same command On MongoShell(3.0.6) this return only multiple connection ids ,few operation ids and single client.

This bug is fixed on issue no : SERVER-18482

When I ran same command On MongoShell(3.1.7) this return only multiple connection ids ,single operation id and multiple client.
db.currentOp(true) does not return Multiple operation Ids that are present in MongoShell(2.6.9).

Please refer attachment for changing in results : first.jpeg