```ruby
cask :v1 => 'tunnelblick' do
  version '3.5.0_build_4265'
  sha256 '3ed4b749f85924937e41f5c78d84db2cdaf52cb60b5528d5e019468be7a1ad04'

  # sourceforge.net is the official download host per the vendor homepage
  url "http://downloads.sourceforge.net/project/tunnelblick/All%20files/Tunnelblick_#{version}.dmg"
  appcast 'https://www.tunnelblick.net/appcast.rss',
          :sha256 => '7fa119cda4d782dc61cb75895c70b3572652df737c908270c48a09d67a874592'
  name 'Tunnelblick'
  homepage 'https://www.tunnelblick.net'
  license :gpl

  app 'Tunnelblick.app'

  uninstall :launchctl => 'net.tunnelblick.tunnelblick.LaunchAtLogin',
            :quit      => 'net.tunnelblick.tunnelblick'

  depends_on :macos => '>= :tiger'

  caveats <<-EOS.undent
    For security reasons, #{token} must be installed to /Applications,
    and will request to be moved at launch.
  EOS
end
```

Update Tunnelblick to 3.5.2 build 4270.4346
user
```ruby
cask :v1 => 'tunnelblick' do
  version '3.5.2_build_4270.4346'
  sha256 'c163c3d2fb500787f37571dd5b14d57846dd73ec0fbd519505cfafee85e924c4'

  # sourceforge.net is the official download host per the vendor homepage
  url "http://downloads.sourceforge.net/project/tunnelblick/All%20files/Tunnelblick_#{version}.dmg"
  appcast 'https://www.tunnelblick.net/appcast.rss',
          :sha256 => '7fa119cda4d782dc61cb75895c70b3572652df737c908270c48a09d67a874592'
  name 'Tunnelblick'
  homepage 'https://www.tunnelblick.net'
  license :gpl

  app 'Tunnelblick.app'

  uninstall :launchctl => 'net.tunnelblick.tunnelblick.LaunchAtLogin',
            :quit      => 'net.tunnelblick.tunnelblick'

  depends_on :macos => '>= :tiger'

  caveats <<-EOS.undent
    For security reasons, #{token} must be installed to /Applications,
    and will request to be moved at launch.
  EOS
end
```
assistant