Cachet/app/controllers/RSSController.php

<?php

class RSSController extends Controller {
    /**
     * Generates an RSS feed of all incidents.
     * @return \Illuminate\Http\Response
     */
    public function feedAction() {
        $feed = RSS::feed('2.0', 'UTF-8');
        $feed->channel([
            'title'         => Setting::get('app_name'),
            'description'   => 'Status Feed',
            'link'          => Setting::get('app_domain'),
        ]);

        Incident::get()->map(function($incident) use ($feed) {
            $componentName = null;
            $component = $incident->component;
            if ($component) {
                $componentName = $component->name;
            }

            $feed->item([
                'title'         => $incident->name,
                'message'       => $incident->message,
                'component'     => $componentName,
                'status'        => $incident->humanStatus,
                'created_at'    => $incident->created_at,
                'updated_at'    => $incident->updated_at
            ]);
        });

        return Response::make($feed, 200, [
            'Content-Type' => 'text/xml'
        ]);
    }
}