Hi all. I'm fairly certain this is an issue we haven't really addressed yet - if we have, I never got the email.
There have been several changes to WML syntax, especially to the [unit] syntax, in 1.1. These changes will only multiply. (This is, by the way, a good thing - I'm not complaining about it.) But if the WML syntax changes, it means campaign designers (like myself) have to decide whether to support 1.1.x, or 1.0.x. Most of us will, most likely, support 1.1.x. Now, to date, there haven't been any changes that will make campaigns supporting 1.1.x not work with 1.0.x (although units with movement animations won't show them in 1.0.x). But who is to say there won't be? Once that change occurs, my guess is that 1.0.x is going to have very few user-made campaigns that will work on their version of Wesnoth. So, more and more people will switch to 1.1.x, so that they can play UMCs... or, much fewer people than currently play UMCs will... I don't think either of these are desirable outcomes. So, what can we do about it? I think the best solution is to have two different campaign servers, one for 1.0.x, one for 1.1.x. - Joseph Simmons
