```ruby
class Adapter < Cask
  url 'http://downloads.macroplant.com/Adapter-1.4.3.dmg'
  homepage 'http://www.macroplant.com/adapter/'
  version '1.4.3'
  sha256 '1bacc9551d559908ab0973dda29e914925a437f992fef571c003273070532d57'
  link 'Adapter.app'
end
```

Update Adapter to version 2.1.0
user
```ruby
class Adapter < Cask
  url 'http://downloads.macroplant.com/Adapter-2.1.0.dmg'
  homepage 'http://www.macroplant.com/adapter/'
  version '2.1.0'
  sha256 '5e29718a7467234d70af9459a0999de73225ba4c9eb13cdec4af7d912ca6e376'
  link 'Adapter.app'
end
```
assistant