old_contents: 
  from django.contrib.syndication.views import Feed
  from django.core.urlresolvers import reverse
  from extensions.models import Extension
  
  class LatestExtensionsFeed(Feed):
      title = "Latest extensions in GNOME Shell Extensions"
      link = "/"
      description = "The latest extensions in GNOME Shell Extensions"
  
      def items(self):
          return Extension.objects.visible().order_by('pk')[-10:]
  
      def item_title(self, item):
          return item.name
  
      def item_description(self, item):
          return item.description
  
      def item_link(self, item):
          return reverse('extensions-detail', kwargs=dict(pk=item.pk,
                                                          slug=item.slug))
  
new_contents: 
  from django.contrib.syndication.views import Feed
  from django.core.urlresolvers import reverse
  from extensions.models import Extension
  
  class LatestExtensionsFeed(Feed):
      title = "Latest extensions in GNOME Shell Extensions"
      link = "/"
      description = "The latest extensions in GNOME Shell Extensions"
  
      def items(self):
          return Extension.objects.visible().order_by('-pk')[:10]
  
      def item_title(self, item):
          return item.name
  
      def item_description(self, item):
          return item.description
  
      def item_link(self, item):
          return reverse('extensions-detail', kwargs=dict(pk=item.pk,
                                                          slug=item.slug))
  
subject: Fix RSS feed some more.