diff --git a/.gitignore b/.gitignore
index 922b4d0..606d825 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,4 @@
 .greenbar
 .rubocop-*
 measurements
+.byebug_history
diff --git a/.rubocop.yml b/.rubocop.yml
new file mode 100644
index 0000000..9790ad7
--- /dev/null
+++ b/.rubocop.yml
@@ -0,0 +1,4 @@
+# Please keep AllCops, Bundler, Style, Metrics groups and then order cops
+# alphabetically
+inherit_from:
+  - https://raw.githubusercontent.com/hanami/devtools/master/.rubocop.yml
diff --git a/.travis.yml b/.travis.yml
index 3625e31..30b3ba3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,16 +1,12 @@
 language: ruby
 sudo: false
 cache: bundler
-before_install:
-  - gem update --system
-  - rvm @global do gem uninstall bundler -a -x
-  - rvm @global do gem install bundler -v 1.13.7
-script: 'bundle exec rake --trace'
+script: ./script/ci
 rvm:
-  - 2.3.3
-  - 2.4.0
+  - 2.3.5
+  - 2.4.2
   - ruby-head
-  - jruby-9.1.6.0
+  - jruby-9.1.13.0
   - jruby-head
 
 matrix:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 83e3e54..6ae23c5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,16 @@
 # Hanami::Mailer
 Mail for Ruby applications
 
+## v1.1.0 - 2017-10-25
+
+## v1.1.0.rc1 - 2017-10-16
+
+## v1.1.0.beta3 - 2017-10-04
+
+## v1.1.0.beta2 - 2017-10-03
+
+## v1.1.0.beta1 - 2017-08-11
+
 ## v1.0.0 - 2017-04-06
 
 ## v1.0.0.rc1 - 2017-03-31
diff --git a/Gemfile b/Gemfile
index 887655a..582c921 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,8 @@ unless ENV['TRAVIS']
   gem 'yard',   require: false
 end
 
-gem 'hanami-utils', '~> 1.0', require: false, git: 'https://github.com/hanami/utils.git', branch: '1.0.x'
+gem 'hanami-utils', '~> 1.1', require: false, git: 'https://github.com/hanami/utils.git', branch: 'unstable'
 gem 'haml'
 
+gem 'hanami-devtools', require: false, git: 'https://github.com/hanami/devtools.git'
 gem 'coveralls', require: false
diff --git a/hanami-mailer.gemspec b/hanami-mailer.gemspec
index 8403064..9be3fbc 100644
--- a/hanami-mailer.gemspec
+++ b/hanami-mailer.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ['lib']
   spec.required_ruby_version = '>= 2.3.0'
 
-  spec.add_dependency 'hanami-utils', '~> 1.0'
+  spec.add_dependency 'hanami-utils', '~> 1.1'
   spec.add_dependency 'tilt',         '~> 2.0', '>= 2.0.1'
   spec.add_dependency 'mail',         '~> 2.6'
 
diff --git a/lib/hanami-mailer.rb b/lib/hanami-mailer.rb
index 549ee34..e8132d3 100644
--- a/lib/hanami-mailer.rb
+++ b/lib/hanami-mailer.rb
@@ -1 +1 @@
-require 'hanami/mailer' # rubocop:disable Style/FileName
+require 'hanami/mailer' # rubocop:disable Naming/FileName
diff --git a/lib/hanami/mailer/rendering/template_name.rb b/lib/hanami/mailer/rendering/template_name.rb
index b559fd9..e7abb82 100644
--- a/lib/hanami/mailer/rendering/template_name.rb
+++ b/lib/hanami/mailer/rendering/template_name.rb
@@ -31,7 +31,7 @@ module Hanami
         # @api private
         def compile!(namespace)
           tokens(namespace) { |token| replace!(token) }
-          @name = Utils::String.new(@name).underscore
+          @name = Utils::String.underscore(@name)
         end
 
         # @since 0.1.0
diff --git a/lib/hanami/mailer/version.rb b/lib/hanami/mailer/version.rb
index a24fc10..06b0719 100644
--- a/lib/hanami/mailer/version.rb
+++ b/lib/hanami/mailer/version.rb
@@ -1,6 +1,6 @@
 module Hanami
   module Mailer
     # @since 0.1.0
-    VERSION = '1.0.0'.freeze
+    VERSION = '1.1.0'.freeze
   end
 end
diff --git a/script/ci b/script/ci
new file mode 100755
index 0000000..c495767
--- /dev/null
+++ b/script/ci
@@ -0,0 +1,51 @@
+#!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+run_code_quality_checks() {
+  bundle exec rubocop .
+}
+
+run_unit_tests() {
+  bundle exec rake spec:coverage
+}
+
+run_isolation_tests() {
+  local pwd=$PWD
+  local root="$pwd/spec/isolation"
+
+  if [ -d $root ]; then
+    for test in $(find $root -name '*_spec.rb')
+    do
+      run_isolation_test $test
+
+      if [ $? -ne 0 ]; then
+        local exit_code=$?
+        echo "Failing test: $test"
+        exit $exit_code
+      fi
+    done
+  fi
+}
+
+run_isolation_test() {
+  local test=$1
+
+  printf "\n\n\nRunning: $test\n"
+  ruby $test --options spec/isolation/.rspec
+}
+
+run_test() {
+  local test=$1
+
+  printf "\n\n\nRunning: $test\n"
+  COVERAGE=true bundle exec rspec $test
+}
+
+main() {
+  run_code_quality_checks &&
+    run_unit_tests &&
+    run_isolation_tests
+}
+
+main
diff --git a/spec/unit/hanami/mailer/dsl_spec.rb b/spec/unit/hanami/mailer/dsl_spec.rb
index 5ec8cee..1e0451c 100644
--- a/spec/unit/hanami/mailer/dsl_spec.rb
+++ b/spec/unit/hanami/mailer/dsl_spec.rb
@@ -21,7 +21,7 @@ RSpec.describe Hanami::Mailer do
     describe 'when no value is set' do
       it 'returns a set of templates' do
         template_formats = LazyMailer.templates.keys
-        expect(template_formats).to eq(%i(html txt))
+        expect(template_formats).to eq(%i[html txt])
       end
 
       it 'returns only the template for the given format' do
diff --git a/spec/unit/hanami/mailer/version_spec.rb b/spec/unit/hanami/mailer/version_spec.rb
index d7910f9..636b839 100644
--- a/spec/unit/hanami/mailer/version_spec.rb
+++ b/spec/unit/hanami/mailer/version_spec.rb
@@ -1,5 +1,5 @@
 RSpec.describe "Hanami::Mailer::VERSION" do
   it "returns current version" do
-    expect(Hanami::Mailer::VERSION).to eq("1.0.0")
+    expect(Hanami::Mailer::VERSION).to eq("1.1.0")
   end
 end