You want a dynamic language, you *need* a dynamic language

This blog hasn't been taken down in months, but I've made major changes to the underlying code base...

And none of the weird jumping through hoops that .NET requires for this sort of thing either. If you want zero downtime, you need a dynamic language. If you like restarting every time you need to make a change - sure, go grab one of those mainstream systems.

...James Robertson, wherein he also quotes Keith Mantell...

With Smalltalk (at least with Visualworks) this was a breeze: added the code for a variable, accepted it and, hey presto, any inspector open on an instance got a new variable field set to nil.