Updated Elasticsearch to 5.2.2. Main changes included:
- Aggregations:
- Restore support for the include/pattern syntax
- Cluster
- Don’t set local node on cluster state used for node join validation
- Cluster allocation explain to never return empty response body
- Index APIs
- Ensure shrunk indices carry over version information from its source
- Internal
- Always restore the ThreadContext for operations delayed due to a block
- Java REST Client
- RestClient asynchronous execution should not throw exceptions
- Network
- Respect promises on pipelined responses
- Ensure that releasing listener is called
- Plugin Ingest Attachment
- Remove support for Visio and potm files
- REST
- Properly encode location header
- Stats
- Fix control group pattern