This plugin will help you to check whether you can upgrade directly to the next major version of Elasticsearch, or whether you need to make changes to your data and cluster before doing so.
https://www.elastic.co/guide/en/elasticsearch/reference/master/_removed_features.html#_literal_murmur3_literal_is_now_a_plugin has been moved to: https://www.elastic.co/guide/en/elasticsearch/reference/2.0/_removed_features.html#_literal_murmur3_literal_is_now_a_plugin
https://www.elastic.co/guide/en/elasticsearch/reference/master/_removed_features.html#_literal_murmur3_literal_is_now_a_pluginhas been moved to:https://www.elastic.co/guide/en/elasticsearch/reference/2.0/_removed_features.html#_literal_murmur3_literal_is_now_a_plugin