Windup 2.5 will be again faster than the previous release, and consume less memory - avoiding OutOfMemoryError's with huge applications.
And you can now run Windup against multiple applications at once.
The UI is nicer - some visual candy, like charts, layout improvements, collapsible panels etc.
Also, quite some bugs are fixed.
See the full list:
Issue Navigator - JBoss Issue Tracker
Stay tuned for the 2.5.0 release!