.rubocop.yml in chusaku-0.5.0 vs .rubocop.yml in chusaku-0.6.0

@@ -1,12 +1,20 @@
 require:
   - rubocop-performance
 
+inherit_mode:
+  merge:
+    - Exclude
+
 AllCops:
+  NewCops: enable
   Exclude:
     - 'bin/**/*'
     - 'test/mock/app/**/*'
     - 'test/mock/examples/**/*'
+
+Gemspec/RequiredRubyVersion:
+  Enabled: false
 
 Layout/LineLength:
   Max: 120
 
 Metrics/AbcSize: