Is this for the feeder / registered feeds system? That just indicates that your server couldn't connect to the RSS feed. It might be a temporary routing issue or it might be an indication of a firewall blocking connections. Nothing new to 1.2.
Try again to see if the error still occurs. If it does, try to load the feed in your browser. If that succeeds, ask your host to try to load the URL from the server via wget to confirm that it fails. It's an issue that they'd then have to look into.