CHANGELOG.md in elastic-apm-2.3.1 vs CHANGELOG.md in elastic-apm-2.4.0

- old
+ new
@@ -2,10 +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).
 
-## Changed (2019-01-31)
+## 2.4.0 (2019-02-27)
+
+### Added
+
+- Added option to specify a custom server CA certificate ([#315](https://github.com/elastic/apm-agent-ruby/pull/315))
+
+### Changed
+
+- **NB:** Default value of option `capture_body` flipped to `false` to align with other agents. Set `capture_body: true` in your configuration to get them back. ([#324](https://github.com/elastic/apm-agent-ruby/pull/324))
+
+### Fixed
+
+- Reading CPU stats from `/proc/stat` on RHEL ([#312](https://github.com/elastic/apm-agent-ruby/pull/312))
+- Change TraceContext to differentiate between `id` and `parent_id` ([#326](https://github.com/elastic/apm-agent-ruby/pull/326))
+- `capture_body` will now force encode text bodies to utf-8 when possible ([#332](https://github.com/elastic/apm-agent-ruby/pull/332))
+
+## 2.3.1 (2019-01-31)
 
 ### Added
 
 - Read container info from Docker or Kupernetes ([#303](https://github.com/elastic/apm-agent-ruby/pull/303))
 