title: ImportError: cannot import name update_all_contenttypes
body: <p>I upgraded recently to Django 1.8.  In previous versions of Django, the following import was fine:</p>
  
  <pre><code>from django.contrib.contenttypes.management import update_all_contenttypes
  </code></pre>
  
  <p>But <code>update_all_contenttypes</code> appears to have been silently removed in Django 1.8 (it was there in 1.7.7).  I'm not seeing anything in the <a href="https://docs.djangoproject.com/en/1.8/releases/1.8/">1.8 release notes</a> about its removal...  Does anyone know what the modern replacement is for that function?</p>