-Where "old_post" is the name of the last post you made to the blog before
-making the change. This will limit the feed to only newer posts (the older
-posts will still be available in the archives).
+Where “old_post” is the name of the last post you made to the blog before
+making the change. This will limit the feed to only newer posts, while still
+displaying the old posts in the blog page.
+
+Alternatively, you can add the [[plugins/meta]] guid directives to pages,
+to force the old url to be used.