CHANGELOG.md in debugger-1.6.6 vs CHANGELOG.md in debugger-1.6.7

@@ -1,4 +1,10 @@
+## 1.6.7
+* Bump ruby_core_source dependency
+
+## 1.6.6
+* 2.1.1 support
+
 ## 1.6.5
 * Bump ruby_core_source dependency
 
 ## 1.6.4
 * Bump ruby_core_source dependency