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+---
+summary: >
+    Added a new parameter for Elasticsearch
+features:
+  - Added the ``elasticsearch_version`` parameter to specify
+    which version of Elasticsearch should be deployed.
+    Elasticsearch version 2 is deployed by default.
+    To deploy Elasticsearch version 5, specify the
+    ``elasticsearch_version: 5`` parameter in the
+    ``classes/cluster/<cluster_name>/stacklight/server.yml``
+    file of the Reclass model.