CHANGELOG.md in microgem-1.0.15 vs CHANGELOG.md in microgem-1.0.16

@@ -1,6 +1,10 @@
 ## CHANGELOG
 
+### 1.0.16
+
+* travis.yml: Update to Ruby 2.6.2, 2.5.4
+
 ### 1.0.15
 
 * travis.yml: Update to Ruby 2.6.1
 
 ### 1.0.14