```ruby
class IntellijIdeaUltimateEap < Cask
  url 'http://download.jetbrains.com/idea/ideaIU-135.863.dmg'
  homepage 'https://www.jetbrains.com/idea/index.html'
  version '135.863'
  sha256 '705cf3e68e2dcec8630adf0d9a0373d56898aad15a1d3614fe30d73bfdefc4ce'
  link 'IntelliJ IDEA 13 EAP.app'
end
```

Upgrade "IntelliJ IDEA 14 EAP.app" to v138.777
user
```ruby
class IntellijIdeaUltimateEap < Cask
  url 'http://download.jetbrains.com/idea/ideaIU-138.777.dmg'
  homepage 'https://www.jetbrains.com/idea/index.html'
  version '138.777'
  sha256 '0653d9aca0a7a8e5cd296c0c1121319cb802e1307bd85ce6d11dab91b127ab64'
  link 'IntelliJ IDEA 14 EAP.app'
end
```
assistant