## Version 1.9.0

Version compatible with elasticsearch 7.8.0

### New Features

* This is the release of the Open Distro Performance Analyzer that will work with elasticsearch 7.8.0

* Add the Root Cause Analysis (RCA) Framework [#12](https://github.com/opendistro-for-elasticsearch/performance-analyzer-rca/pull/12)

* Add gRPC based networking for RCA [#13](https://github.com/opendistro-for-elasticsearch/performance-analyzer-rca/pull/13)

* Add young gen RCA and unit tests [#41](https://github.com/opendistro-for-elasticsearch/performance-analyzer-rca/pull/41)

* Add API for RCA [#61](https://github.com/opendistro-for-elasticsearch/performance-analyzer-rca/pull/61)

* Add HighCpuRca to collect total cpu usage [#125](https://github.com/opendistro-for-elasticsearch/performance-analyzer-rca/pull/125)

* Add hot node RCA [#128](https://github.com/opendistro-for-elasticsearch/performance-analyzer-rca/pull/128)

* Muting API [#168](https://github.com/opendistro-for-elasticsearch/performance-analyzer-rca/pull/168)