diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11822e9..a0d416e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Removed
 
+## [1.2.0] - 2019-08-08
+### Added
+- Versioning and help messages for CLI
+
+### Changed
+- Extended allowed line length to 120
+- Change the mutant to only scan the latest commits 
+
 
 ## [1.1.0] - 2019-05-21
 ### Added
diff --git a/README.md b/README.md
index 4ec5d8f..d7f32b0 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,20 @@ This is how you run them in your terminal:
     $ yaml_check my_yaml_file.yml
     $ yaml_normalize my_yaml_file.yml
 
+To check the current version of yaml_normalizer type:
+   $ yaml_check --version
+
+   or
+
+   $ yaml_normalize -v
+
+To see the help message for yaml_normalizer type:
+   $ yaml_check --help
+
+    or
+
+   $ yaml_normalize -h
+
 ### Include Yaml Normalizer rake tasks
 In your Gemfile, add
 
diff --git a/Rakefile b/Rakefile
index 6d33950..f928183 100644
--- a/Rakefile
+++ b/Rakefile
@@ -44,7 +44,7 @@ end
 desc 'Mutation testing to check mutation coverage of current RSpec test suite'
 task :mutant do
   mutant_sh = 'bundle exec mutant \
-    --since 18069a6bb8779c2381b361738c866ce4c35f7466 \
+    --since v1.2.0 \
     --include lib \
     --require yaml_normalizer \
     --use rspec YamlNormalizer* 2>&1'
diff --git a/lib/yaml_normalizer/helpers/param_parser.rb b/lib/yaml_normalizer/helpers/param_parser.rb
index b6237ae..97e7633 100644
--- a/lib/yaml_normalizer/helpers/param_parser.rb
+++ b/lib/yaml_normalizer/helpers/param_parser.rb
@@ -6,29 +6,29 @@ module YamlNormalizer
   module Helpers
     # Methods handling passing of additional params from CLI
     module ParamParser
-      # rubocop:disable Metrics/MethodLength
-
       # Parse the params provided to the service
       # @param [Array] args - params passed to the service
       # @return nil
       def parse_params(*args)
         OptionParser.new do |opts|
           opts.banner = "Usage: #{program_name} [options] file1, file2..."
-          opts.on('-v', '--version', 'Prints the yaml_normalizer version') do
-            print_version
-            exit_success
-          end
-          opts.on('-h', '--help', 'Prints this help') do
-            print(opts)
-            exit_success
-          end
+          opts.on('-v', '--version', 'Prints the yaml_normalizer version') { print_version }
+          opts.on('-h', '--help', 'Prints this help') { print_help(opts) }
         end.parse(args)
       end
-      # rubocop:enable Metrics/MethodLength
 
       # Print current version of the tool
       def print_version
         print("#{YamlNormalizer::VERSION}\n")
+        exit_success
+      end
+
+      # Print current version of the tool
+      # @param [Option] opts - options of opt_parser object
+      # @return nil
+      def print_help(opts)
+        print(opts)
+        exit_success
       end
 
       private