CHANGELOG.md in govuk_app_config-1.9.0 vs CHANGELOG.md in govuk_app_config-1.9.1

@@ -1,4 +1,9 @@
+# 1.9.1
+
+* Make XRay log missing segments (such as when executing rake tasks)
+  as an error, rather than throwing an exception.
+
 # 1.9.0
 
 * Record 1% of requests with AWS X-Ray.
 
 # 1.8.0