[PvK]

Yes, that's right. I have it in 2.1, but I remember why I didn't put it in originally. SE4 does not allow upgrades to intermediate levels - only to the highest level. This means that as soon as you develop Megalopolis, you won't be able to upgrade from City to Metropolis, only to Megalopolis (which will take a long long time). I'll send a request in case it's easy for MM to allow intermediate upgrades, but I wouldn't hold my breath. I'll still add upgrades to 2.1, but this is a kind of annoying limit. If anyone knows of a way around this, let me know.

PvK