Right, this is the comment I was going to make as well. It's certainly possible, but there's tradeoffs (mainly around complexity) to code hot-swapping. We haven

Right, this is the comment I was going to make as well. It's certainly possible, but there's tradeoffs (mainly around complexity) to code hot-swapping. We haven't implemented it because restarting servers to upgrade code helps everyone prepare for when servers go down for unexpected reasons, or so I like to think :P!