CHANGELOG.md in statsd-instrument-3.6.1 vs CHANGELOG.md in statsd-instrument-3.7.0

@@ -4,9 +4,13 @@
 creating a pull request, please add an entry to the "unreleased changes"
 section below.
 
 ## Unreleased changes
 
+## Version 3.7.0
+
+- Add public `.flush` method to sink classes.
+
 ## Version 3.6.1
 
 - Fix `ArgumentError` when passing an empty Hash as tags.
 
 ## Version 3.6.0