```ruby
class DuplicateAnnihilator < Cask
  url 'http://brattoo.com/propaganda/downloadDa.php'
  homepage 'http://brattoo.com/propaganda/'
  version '4.16.0'
  sha1 '80af306c21f1f6c16d08fe6a672af3d20a43591d'
  nested_container 'Duplicate Annihilator.dmg'
  link 'Duplicate Annihilator.app'
end
```

Switch to latest version, no_checksum
user
```ruby
class DuplicateAnnihilator < Cask
  url 'http://brattoo.com/propaganda/downloadDa.php'
  homepage 'http://brattoo.com/propaganda/'
  version 'latest'
  no_checksum
  nested_container 'Duplicate Annihilator.dmg'
  link 'Duplicate Annihilator.app'
end
```
assistant