CHANGELOG.md in elastic-apm-2.1.2 vs CHANGELOG.md in elastic-apm-2.2.0

@@ -2,9 +2,26 @@
 
 All notable changes to this project will be documented in this file.
 
 This project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## 2.2.0 (2019-01-22)
+
+### Added
+
+- Support for [OpenTracing](https://opentracing.io) ([#273](https://github.com/elastic/apm-agent-ruby/pull/273))
+- Add capture_* options ([#279](https://github.com/elastic/apm-agent-ruby/pull/279))
+- Evaluate the config file as ERB ([#288](https://github.com/elastic/apm-agent-ruby/pull/288))
+
+### Changed
+
+- Rename `Traceparent` object to `TraceContext` ([#271](https://github.com/elastic/apm-agent-ruby/pull/271))
+
+### Fixed
+
+- An issue where Spans would not get Stacktraces attached ([#282](https://github.com/elastic/apm-agent-ruby/pull/282))
+- Skip `caller` unless needed ([#287](https://github.com/elastic/apm-agent-ruby/pull/283))
+
 ## 2.1.2 (2018-12-07)
 
 ### Fixed
 
 - Fix truncation of `transaction.request.url` values ([#267](https://github.com/elastic/apm-agent-ruby/pull/267))