- Elasticsearch 2.0 does not allow for dots in field names. This change changes to use sub-field syntax instead of dotted syntax. This is a breaking change.
- Fix test that used deprecated "tags" syntax
- Plugins were updated to follow the new shutdown semantic, this mainly allows Logstash to instruct input plugins to terminate gracefully, instead of using Thread.raise on the plugins' threads. Ref: elastic/logstash#3895
- Dependency on logstash-core update to 2.0