.rubocop.yml in head_music-0.20.0 vs .rubocop.yml in head_music-0.22.0

@@ -6,18 +6,27 @@
     - 'Gemfile'
     - 'Rakefile'
     - 'spec/**/*.rb'
 
 Metrics/ClassLength:
-  Max: 150
+  Max: 155
 
 Metrics/LineLength:
   Max: 120
 
 Style/SymbolArray:
   Enabled: true
 
 Style/ClassAndModuleChildren:
   EnforcedStyle: compact
 
-Style/TrailingCommaInLiteral:
+Style/TrailingCommaInArrayLiteral:
   EnforcedStyleForMultiline: consistent_comma
+
+Style/TrailingCommaInHashLiteral:
+  EnforcedStyleForMultiline: consistent_comma
+
+AllCops:
+  TargetRubyVersion: 2.4
+
+Layout/EmptyLineAfterGuardClause:
+  Enabled: false