Sleipner has not been developed for more than two years now and it's probably never going to be developed further. It will of course remain available, but with the purpose as serving as an educational resource. The website has been updated to reflect this.
A new release has been uploaded. Find it under download.
New website released
Sleipner.sourceforge.net has been released. The content is still a bit sparse at the moment, but we expect the website to be updated within the next couple of weeks (after the exam).