```ruby
class Xbmc < Cask
  url 'http://mirrors.xbmc.org/releases/osx/xbmc-12.3-x86_64.dmg'
  homepage 'http://xbmc.org/'
  version '12.3'
  sha256 'ff592da6e455cf06dddf90a765ab784b688285653bfdc2b5ab7820c9ee7ee366'
  link 'XBMC.app'
end
```

Update XBMC to version 13.0
user
```ruby
class Xbmc < Cask
  url 'http://mirrors.xbmc.org/releases/osx/x86_64/xbmc-13.0-x86_64.dmg'
  homepage 'http://xbmc.org/'
  version '13.0'
  sha256 '00b7a5436acd93cbacf2ad2afc25f2ff4833cad6fc83df2e0aae31e7b3684c3a'
  link 'XBMC.app'
end
```
assistant