```ruby
class PlexMediaServer < Cask
  url 'http://downloads.plexapp.com/plex-media-server/0.9.9.5.411-da1d892/PlexMediaServer-0.9.9.5.411-da1d892-OSX.zip'
  homepage 'http://plexapp.com'
  version '0.9.9.5.411'
  sha256 '2f1a436ff9c5c494d7a55c4c2138fa2febde5431243c97de1e643d3d50c6b875'
  link 'Plex Media Server.app'
end
```

Update Plex Media Server version from 0.9.9.5.411 to 0.9.9.7.429
user
```ruby
class PlexMediaServer < Cask
  url 'http://downloads.plexapp.com/plex-media-server/0.9.9.7.429-f80a8d6/PlexMediaServer-0.9.9.7.429-f80a8d6-OSX.zip'
  homepage 'http://plexapp.com'
  version '0.9.9.7.429'
  sha256 '7c74eab9da4cd4ecbb8b27595ff6f5b0df006aba8333263471ccf27790dad27d'
  link 'Plex Media Server.app'
end
```
assistant