Liberty profile is a brand new feature of WebSphere Application Server 8.5.
- It's a functional subset of the full profile.
- Provides a lightweight alternative for developers (consumes ~50Mb disk space and starts up in a few seconds), but it's supported for production use as well.
- Focuses on the development of web and OSGi apps.
- Highly simplified installation (unpack a single zip file) and configuration (adjust a single server.xml file).
- Capabilities are turned on dynamically as you deploy applications and the configuration is adjusted automatically as well.
- Supports hot-deploy.