Index: lib/redmine/wiki_formatting/macros.rb
===================================================================
--- lib/redmine/wiki_formatting/macros.rb	(revision 3171)
+++ lib/redmine/wiki_formatting/macros.rb	(working copy)
@@ -107,12 +107,17 @@
       
       desc "Include a wiki page. Example:\n\n  !{{include(Foo)}}\n\nor to include a page of a specific project wiki:\n\n  !{{include(projectname:Foo)}}"
       macro :include do |obj, args|
-        page = Wiki.find_page(args.first.to_s, :project => @project)
+        title = args.first.to_s
+        if title =~ %r{^([^@]+)@(.*)$}
+          title, version = $1, $2
+        end
+        page = Wiki.find_page(title, :project => @project)
         raise 'Page not found' if page.nil? || !User.current.allowed_to?(:view_wiki_pages, page.wiki.project)
         @included_wiki_pages ||= []
         raise 'Circular inclusion detected' if @included_wiki_pages.include?(page.title)
         @included_wiki_pages << page.title
-        out = textilizable(page.content, :text, :attachments => page.attachments)
+        content = version ? page.content_for_version(version) : page.content
+        out = textilizable(content, :text, :attachments => page.attachments)
         @included_wiki_pages.pop
         out
       end