Cascalog Hadoop version support

Hi,

I notice that the Cascalog getting started guide specifies a version of Hadoop

:profiles { :dev {:dependencies [[org.apache.hadoop/hadoop-core "1.0.3"]]}}

If my group uses a different version of Hadoop then am I out of luck? More broadly with what set of Hadoop versions does Cascalog interoperate?

Thanks & Regards
Hari

How is this related to Elasticsearch?