Currently we have a dev environment (only available if you're running the VPN) and QA environment (available on the internet). We really ought to have one more production environment on the internet. That gives us a "play" environment where we can do anything we want, a place to run a potentially production-ready version of the marketplace, and the real environment. Presumably the dev environment will always run the latest build, and the other two environments would have specific versions selected. Currently dev and QA both just pull the latest version of the marketplace.
Currently we have a dev environment (only available if you're running the VPN) and QA environment (available on the internet). We really ought to have one more production environment on the internet. That gives us a "play" environment where we can do anything we want, a place to run a potentially production-ready version of the marketplace, and the real environment. Presumably the dev environment will always run the latest build, and the other two environments would have specific versions selected. Currently dev and QA both just pull the latest version of the marketplace.