CHANGELOG.md in statsd-instrument-3.1.0 vs CHANGELOG.md in statsd-instrument-3.1.1

@@ -6,9 +6,13 @@
 
 ### Unreleased changes
 
 _Nothing yet_
 
+## Version 3.1.1
+
+ - Improved flushing of buffered datagrams on process exit when using UDP batching.
+
 ## Version 3.1.0
 
 - Introduced UDP batching using a dispatcher thread, and made it the
   production default.
 - Dropped support for Ruby 2.4 and 2.5.