CHANGELOG.md in macros4cuke-0.5.16 vs CHANGELOG.md in macros4cuke-0.5.17

@@ -1,4 +1,10 @@
+### 0.5.17 / 2019-08-18
+- Code refactoring to use string frozen magic comments (as a consequence, macros4cuke runs only on Rubies 2.3 or newer).  
+- Code restyling to please rubocop 0.7.40. 
+* [CHANGE] File `.travis.yml`: updated Ruby versions.
+* [CHANGE] File `appveyor.yml` updated Ruby versions.
+
 ### 0.5.16 / 2019-01-4
 - Maintenance release.
 
 * [CHANGE] Code re-styling to please Rubocop 0.62.0.
 * [CHANGE] File `.travis.yml`: updated Ruby versions.