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Servlet v2.5 spec compliance has been added, as
well as session persistence across container
restarts and a bunch of extra request dispatching
and session fixes.
The license for the Winstone Servlet Container has
been updated to make it more commercially
friendly. The GPL has been abandoned in favor of a
dual LGPL / CDDL licensing scheme. It also
contains some fixes for JSP includes and use with
appfuse.
A few important new features, including an expanded JDBC connection pool (with keep-alive queries and block-and-retry behaviour when the pool has been exhausted), name-based virtual hosting, Apache-style customizable access logging, and an all-in-one jar file container + Web app deployment option. There are many performance enhancements and bugfixes, especially for WebDAV support.