The Windows client for Web Portal has been enhanced, so that Java is not required anymore.
However, Java will still be necessary on the server side.
The generated clients are now able to use the Gateway load balancing.
A new Virtual Printer feature for HTML5 client: you can now choose the "Virtual Printer" instead of the "Universal Printer", in order to print instantly on your local printer. This new virtual printer is faster and easier to use.

The URL on Client in HTML5 is also much improved, with more stability.
All known issues of the 8.30 release have been fixed in the 8.40 release and many other minor enhancements have been added.