```ruby
cask :v1 => 'atom' do
  version '1.0.5'
  sha256 'ed4c55e059195111d9d12ec379849d8d3509062496fcf61102fc98d1ff8ba12e'

  # github.com is the official download host per the vendor homepage
  url "https://github.com/atom/atom/releases/download/v#{version}/atom-mac.zip"
  appcast 'https://github.com/atom/atom/releases.atom'
  name 'Atom'
  homepage 'https://atom.io/'
  license :mit
  tags :vendor => 'Github'

  depends_on :macos => '>= :mountain_lion'

  app 'Atom.app'
  binary 'Atom.app/Contents/Resources/app/apm/node_modules/.bin/apm', :target => 'apm'
  binary 'Atom.app/Contents/Resources/app/atom.sh', :target => 'atom'

  postflight do
    suppress_move_to_applications
  end

  zap :delete => [
                  '~/.atom',
                  '~/Library/Application Support/ShipIt_stderr.log',
                  '~/Library/Application Support/Atom',
                  '~/Library/Application Support/ShipIt_stdout.log',
                  '~/Library/Application Support/com.github.atom.ShipIt',
                  '~/Library/Caches/com.github.atom',
                  '~/Library/Preferences/com.github.atom.plist',
                 ],
      :rmdir  => '~/.atom/'
end
```

Upgrade Atom to version 1.0.6.
user
```ruby
cask :v1 => 'atom' do
  version '1.0.6'
  sha256 '212643e118a6d1844a6dfb03481b314a99db7f0f5c7c37e5f528399cf626dbdf'

  # github.com is the official download host per the vendor homepage
  url "https://github.com/atom/atom/releases/download/v#{version}/atom-mac.zip"
  appcast 'https://github.com/atom/atom/releases.atom'
  name 'Atom'
  homepage 'https://atom.io/'
  license :mit
  tags :vendor => 'Github'

  depends_on :macos => '>= :mountain_lion'

  app 'Atom.app'
  binary 'Atom.app/Contents/Resources/app/apm/node_modules/.bin/apm', :target => 'apm'
  binary 'Atom.app/Contents/Resources/app/atom.sh', :target => 'atom'

  postflight do
    suppress_move_to_applications
  end

  zap :delete => [
                  '~/.atom',
                  '~/Library/Application Support/ShipIt_stderr.log',
                  '~/Library/Application Support/Atom',
                  '~/Library/Application Support/ShipIt_stdout.log',
                  '~/Library/Application Support/com.github.atom.ShipIt',
                  '~/Library/Caches/com.github.atom',
                  '~/Library/Preferences/com.github.atom.plist',
                 ],
      :rmdir  => '~/.atom/'
end
```
assistant