[xwiki-users] migrating from xwiki to xws easy?

Hello xwiki experts, I've been enjoy an xwiki 2.2m2 for a while but the collaborative features are some rudimentary and I've been considering xwiki workspaces. Do I have chance to migrate one to the other by simply uploading the xar? The xws pages don't state a compatibility chart and seem to talk about xwiki 1.7, quite a bit older! thanks in advance paul