As I am planning to use Spring Data Elasticsearch, I found that the Spring-data-elasticsearch (1.4.0.BUILD-SNAPSHOT) is compatible with elasticsearch 2.2. But I am not able to apply sparing-data-elasticsearch (1.4.0.BUILD-SNAPSHOT) , as maven is not able to download it. So, I am trying to explore the older versions of spring-data-elasticsearch with elasticsearch.
Therefore, please tell me the differences between Elasticsearch 2.2 vs Elasticsearch 1.5.2. I saw the release notes, but not able to figure out clearly. Please tell in simple words the difference between the two.
Thanks in advance...