Eclipse Jetty 11.x Highlights

Jetty 11.x has a minimum Java requirement of Java 11.
Jetty 11.x modules are proper JPMS modules with module-info.class.
Jetty 11.x supports the following technology specs (from the Jakarta EE 9 effort):
- jakarta.servlet - 5.0.0
- jakarta.servlet.jsp - 3.0.0
- jakarta.servlet.jsp.jstl - 2.0.0
- jakarta.el - 4.0.0
- jakarta.websocket - 2.0.0
Jetty 11.x is the first major version of Jetty to support the jakarta.servlet namespace.
Use Jetty 10.x for the older (now outdated) javax.servlet namespace.

Important Changes

Classic jetty logging facade has been replaced with slf4j-api usage
There is no longer a jetty-distribution, use jetty-home with a proper ${jetty.base} instead.
See: Operations Guide: Architecture
- New demo jetty-start module exists to replace the old demo-base functionality.
Remove jetty-all uber artifact
Managing Configuration within a WebAppContext has a new API.
(They are now self ordering and do not require knowledge of Jetty internals to use successfully)
Complete WebSocket refactoring, those using the Jetty APIs or embedded-jetty will need to update their code.
- Support for WebSocket over HTTP/2 (client and server)
Jetty HttpClient has been improved.
- Supports dynamic protocol upgrade (http/2 and http/1.1).
Session management has been refactored as well.