What is the difference between OpenLiberty and WebSphere Liberty?
Recently IBM created a new open source project called "OpenLiberty" that is largely shared with the codebase for WebSphere Liberty.
What is the difference between OpenLiberty vs. WebSphere Liberty? What features do I get with the free open source version, and what extra features are available with WebSphere Liberty?
OpenLiberty contains a subset of what is available with the larger "WebSphere Liberty" server. Namely, OpenLiberty contains full support for Java EE 7.0 8.0, and MicroProfile features.
With WebSphere Liberty comes the "production grade" features that help with scaling up to a larger cluster of servers, as well as metric and monitoring features.
Here is a visualization of the feature breakdown. It will change in the future, but gives a rough idea of how the feature organization works:
