Pokud vím, tak StarUml již není udržováno a má následovníka WhiteStarUML (http://whitestaruml.sourceforge.net/). Na jednoduché diagramy je ale stejně nejlepší PlantUML (http://plantuml.com/)...
Nebyl, původní projekt je skutečně mrtvý.
Pod jeho jménem nyní existuje jiný (StarUML V2), ale ten není open source.
"StarUML V1 was an open source project under GPL License. However, current StarUML (after V2) is not open source any more. Many users have been expected that the project is being continued, developed and maintained. But, we couldn’t find any sponsors so we can’t avoid to commercialize this product in order to keep developing and supporting users."
No, to asi ne :-)
In evaluation mode, there will be watermarks in the exported diagram images. There is no time limit for evaluation, but it is only allowed for evaluation purpose. If you want to use for other purposes including educational, personal, or commercial purpose, you need to purchase licenses.