The Minecraft Server has been updated to version 1.9.2, up from 1.7.0. The huge difference is that now it actually does support the /goto command for guests again! Everybody will be able to see your epic creations now (but not destroy them) - yay!

Some optimizations were made too, so hopefully the leaks after executing massive commands or suffering from flooding on maps and so on won't require maintenance restarts.
Quite a nice feature is also full fList support - fList is a fan-made improved server browser site, which even makes automatic isometric screenshots of server maps:

http://list.fragmer.net/

Obviously SpecialAttack.net Freebuild is listed there as well.

I also installed Hyvebuild, another custom server with advanced features, to test it out. It requires some advanced setup work (i.e. Python with a couple of scripts), which I haven't completed yet, but is in many aspects superior to MCSharp. The server is not publicly available yet but I'll update this new post when it is.

Last but not least, here are Isometric screenshots of our current maps (including the newly improved 256x256 main and caverns just for the giggles):