```ruby
class DropboxExperimental < Cask
  url 'https://dl-web.dropbox.com/u/17/Dropbox%202.5.37.dmg'
  homepage 'https://www.dropbox.com/'
  version '2.5.37'
  sha256 '86048999911fcf756a2991c2d6346176ce244ccae4117cb6231580879682c10d'
  link 'Dropbox.app'
end
```

Upgrade Dropbox Experimental Build to v2.11.9
user
```ruby
class DropboxExperimental < Cask
  url 'https://dl.dropboxusercontent.com/u/17/Dropbox%202.11.9.dmg'
  homepage 'https://www.dropbox.com/'
  version '2.11.9'
  sha256 'd1aa49f96196baf8370c2d89570fc49fce7f420a61c6345298187f3e74cacc8f'
  link 'Dropbox.app'
end
```
assistant