CHANGELOG.md in backport-1.1.0 vs CHANGELOG.md in backport-1.1.1

@@ -1,4 +1,8 @@
+## 1.1.1 - May 28, 2019
+- Interval server synchronizes updates and ready state
+- Spec and CI changes
+
 ## 1.1.0 - May 27, 2019
 - Interval server uses threads for timing
 - Servers use observer patterns to reduce polling
 
 ## 1.0.0 - February 19, 2019