```ruby
class Sonos < Cask
  url 'http://update.sonos.com/software/mac/mdcr/SonosDesktopController42.dmg'
  homepage 'http://www.sonos.com/'
  version '4.2'
  sha256 '91c4d7568e34c74406efdd7ed9678a83cded4e61b61fb657242fe53fc492bc9d'
  link 'Sonos.app'
end
```

Update Sonos Controller from version 4.2 to 4.3
user
```ruby
class Sonos < Cask
  url 'http://update.sonos.com/software/mac/mdcr/SonosDesktopController43.dmg'
  homepage 'http://www.sonos.com/'
  version '4.3'
  sha256 '4e8027da6efa047fefd39b234f9917503b0bd994093775da6f08ce9cf6faef4a'
  link 'Sonos.app'
end
```
assistant