We are hard at work on Strype, currently fixing some bugs and polishing, after which we will work on some new features (object-oriented programming, plus graphics and sound support). We are planning to adopt a model of releasing the new changes every few months once we have tested them well and are confident they are working correctly. If you are interested in trying out the very latest version you can find a development server here which will always run the latest version of our main branch on Github:
https://k-pet-group.github.io/Strype/
We do not recommend using this in the classroom because it is literally the latest development version and at some times it will be incomplete or potentially buggy. But if you're interested it's there for you to try out. For example, it currently has the new "Download as image" functionality on frames, and a new drag-and-drop implementation which should be a bit easier to use.