```ruby
cask :v1 => 'intellij-idea-ce-eap' do
  version '141.1192.2'
  sha256 '18f8ecfa66e2e687cab6ddd844bde8996ecb54eb93279a8e8ce5e43a9aa6def3'

  url "http://download.jetbrains.com/idea/ideaIC-#{version}.dmg"
  homepage 'https://confluence.jetbrains.com/display/IDEADEV/IDEA+14.1+EAP'
  license :apache

  app 'IntelliJ IDEA 14 CE EAP.app'
end
```

Update IntelliJ IDEA CE to EAP 15; version 142.2491.4.
user
```ruby
cask :v1 => 'intellij-idea-ce-eap' do
  version '142.2491.4'
  sha256 '280e852beecff74301ecd402aa07109e9387930693d9bfd6357fc327d401e776'

  url "https://download.jetbrains.com/idea/ideaIC-#{version}-custom-jdk-bundled.dmg"
  name 'IntelliJ IDEA EAP :: CE'
  homepage 'https://confluence.jetbrains.com/display/IDEADEV/IDEA+15+EAP'
  license :apache

  app 'IntelliJ IDEA 15 CE EAP.app'

  zap :delete => [
		  '~/Library/Preferences/com.jetbrains.intellij.plist',
                  '~/Library/Application Support/IdeaIC15',
                  '~/Library/Preferences/IdeaIC15',
                  '~/Library/Caches/IdeaIC15',
                  '~/Library/Logs/IdeaIC15',
                 ]
end
```
assistant