diff --git a/.travis.yml b/.travis.yml
index b014915..20bc9a7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,8 @@ language: python
 env:
   - TOX_ENV=django18
   - TOX_ENV=django19
+  - TOX_ENV=django110
+  - TOX_ENV=django111
   - TOX_ENV=py33
   - TOX_ENV=py34
   - TOX_ENV=flake8
diff --git a/README.upgrading.rst b/README.upgrading.rst
index 4aeae85..a521390 100644
--- a/README.upgrading.rst
+++ b/README.upgrading.rst
@@ -20,6 +20,8 @@ The following table maps django-sshkey version to migration labels:
 +---------+---------------+-------+------------------------------------------+
 | 2.4     | django_sshkey | 0001  | Django native migrations started.        |
 +---------+---------------+-------+------------------------------------------+
+| 2.5     | django_sshkey | 0002  |                                          |
++---------+---------------+-------+------------------------------------------+
 
 To upgrade, install the new version of django-sshkey and then migrate your
 project to its corresponding label from the table above using the following
diff --git a/RELEASE-NOTES.rst b/RELEASE-NOTES.rst
index 2d5db3e..2239059 100644
--- a/RELEASE-NOTES.rst
+++ b/RELEASE-NOTES.rst
@@ -2,6 +2,20 @@
 Release Notes for django-sshkey
 ===============================
 
+2.5.0 (2016-06-16)
+------------------
+
+Migration label: 0002
+
+* Stop testing against Django 1.4 through 1.7.
+* Start testing against Django 1.9.
+* Support for Python 3.3 and 3.4 (issue #6).
+* Support OpenSSH 6.8+ MD5 and SHA256 fingerprints (issue #5). Also makes
+  django-sshkey compatible with fingerprints of unpatched OpenSSH 6.9+
+  ``AuthorizedKeysCommand`` (issue #3). Add ``SSHKEY_DEFAULT_HASH`` setting.
+* Add ``import_sshkey`` and ``normalize_sshkeys`` management commands.
+* Code formatting cleanup.
+
 2.4.0 (2015-09-21)
 ------------------
 
diff --git a/django_sshkey/__init__.py b/django_sshkey/__init__.py
index 39cd305..7afd9d7 100644
--- a/django_sshkey/__init__.py
+++ b/django_sshkey/__init__.py
@@ -27,4 +27,4 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 
-__version__ = '2.4.0'
+__version__ = '2.5.0'
diff --git a/django_sshkey/models.py b/django_sshkey/models.py
index e2ca36b..245cd80 100644
--- a/django_sshkey/models.py
+++ b/django_sshkey/models.py
@@ -28,7 +28,7 @@
 # POSSIBILITY OF SUCH DAMAGE.
 
 from django.db import models
-from django.contrib.auth.models import User
+from django.conf import settings as django_settings
 from django.core.exceptions import ValidationError
 from django.db.models.signals import pre_save
 from django.dispatch import receiver
@@ -42,7 +42,8 @@
 
 
 class UserKey(models.Model):
-  user = models.ForeignKey(User, db_index=True)
+  user = models.ForeignKey(django_settings.AUTH_USER_MODEL, db_index=True,
+                           on_delete=models.CASCADE)
   name = models.CharField(max_length=50, blank=True)
   key = models.TextField(max_length=2000)
   fingerprint = models.CharField(max_length=128, blank=True, db_index=True)
@@ -134,7 +135,7 @@ def send_email_add_key(sender, instance, **kwargs):
   if request:
     context_dict['request'] = request
     context_dict['userkey_list_uri'] = request.build_absolute_uri(
-      reverse('django_sshkey.views.userkey_list'))
+      reverse('django_sshkey:userkey_list'))
   text_content = render_to_string('sshkey/add_key.txt', context_dict)
   msg = EmailMultiAlternatives(
     settings.SSHKEY_EMAIL_ADD_KEY_SUBJECT,
diff --git a/django_sshkey/templates.example/sshkey/userkey_list.html b/django_sshkey/templates.example/sshkey/userkey_list.html
index dd5898a..7f84775 100644
--- a/django_sshkey/templates.example/sshkey/userkey_list.html
+++ b/django_sshkey/templates.example/sshkey/userkey_list.html
@@ -1,4 +1,3 @@
-{% load url from future %}
 <h1>My Keys</h1>
 {% if messages %}
 <ul class="messages">
@@ -7,7 +6,7 @@ <h1>My Keys</h1>
   {% endfor %}
 </ul>
 {% endif %}
-<p><a href="{% url "django_sshkey.views.userkey_add" %}">Add Key</a></p>
+<p><a href="{% url "django_sshkey:userkey_add" %}">Add Key</a></p>
 <table>
   <tr>
     <th>Key</th>
@@ -30,9 +29,9 @@ <h1>My Keys</h1>
     <td>{{ userkey.last_used|default:"never" }}</td>
     <td>
     {% if allow_edit %}
-    <a href="{% url "django_sshkey.views.userkey_edit" userkey.pk %}">Edit</a>
+    <a href="{% url "django_sshkey:userkey_edit" userkey.pk %}">Edit</a>
     {% endif %}
-    <a href="{% url "django_sshkey.views.userkey_delete" userkey.pk %}">Delete</a>
+    <a href="{% url "django_sshkey:userkey_delete" userkey.pk %}">Delete</a>
     </td>
   </tr>
 {% endfor %}
diff --git a/django_sshkey/tests.py b/django_sshkey/tests.py
index 91a2302..2d20c0e 100644
--- a/django_sshkey/tests.py
+++ b/django_sshkey/tests.py
@@ -524,7 +524,7 @@ def assertHasKeys(self, response, keys):
     self.assertEqual(actual, expected)
 
   def test_lookup_all(self):
-    url = reverse('django_sshkey.views.lookup')
+    url = reverse('django_sshkey:lookup')
     response = self.client.get(url)
     self.assertHasKeys(response, [
       'command="user1 %s" %s' % (
@@ -542,7 +542,7 @@ def test_lookup_all(self):
     ])
 
   def test_lookup_by_fingerprint(self):
-    url = reverse('django_sshkey.views.lookup')
+    url = reverse('django_sshkey:lookup')
     fingerprint = ssh_fingerprint(self.key1_path + '.pub', hash='legacy')
     response = self.client.get(url, {'fingerprint': fingerprint})
     self.assertHasKeys(response, [
@@ -553,7 +553,7 @@ def test_lookup_by_fingerprint(self):
     ])
 
   def test_lookup_by_username_single_result(self):
-    url = reverse('django_sshkey.views.lookup')
+    url = reverse('django_sshkey:lookup')
     username = self.user2.username
     response = self.client.get(url, {'username': username})
     self.assertHasKeys(response, [
@@ -564,7 +564,7 @@ def test_lookup_by_username_single_result(self):
     ])
 
   def test_lookup_by_username_multiple_results(self):
-    url = reverse('django_sshkey.views.lookup')
+    url = reverse('django_sshkey:lookup')
     response = self.client.get(url, {'username': self.user1.username})
     self.assertHasKeys(response, [
       'command="user1 %s" %s' % (
@@ -578,13 +578,13 @@ def test_lookup_by_username_multiple_results(self):
     ])
 
   def test_lookup_nonexist_fingerprint(self):
-    url = reverse('django_sshkey.views.lookup')
+    url = reverse('django_sshkey:lookup')
     fingerprint = ':'.join(['ff'] * 16)
     response = self.client.get(url, {'fingerprint': fingerprint})
     self.assertHasKeys(response, [])
 
   def test_lookup_nonexist_username(self):
-    url = reverse('django_sshkey.views.lookup')
+    url = reverse('django_sshkey:lookup')
     response = self.client.get(url, {'username': 'batman'})
     self.assertHasKeys(response, [])
 
diff --git a/django_sshkey/urls.py b/django_sshkey/urls.py
index 26d0dfa..95c4186 100644
--- a/django_sshkey/urls.py
+++ b/django_sshkey/urls.py
@@ -1,4 +1,5 @@
 # Copyright (c) 2014-2016, Clemson University
+# Copyright (c) 2017, Baptiste Jonglez
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -27,15 +28,15 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 
-try:
-  from django.conf.urls.defaults import patterns, url
-except ImportError:
-  from django.conf.urls import patterns, url
+from django.conf.urls import url
 
-urlpatterns = patterns('django_sshkey.views',
-  url(r'^lookup$', 'lookup'),  # noqa
-  url(r'^$', 'userkey_list'),
-  url(r'^add$', 'userkey_add'),
-  url(r'^(?P<pk>\d+)$', 'userkey_edit'),
-  url(r'^(?P<pk>\d+)/delete$', 'userkey_delete'),
-)
+from . import views
+
+app_name = "django_sshkey"
+urlpatterns = [
+  url(r'^lookup$', views.lookup, name='lookup'),  # noqa
+  url(r'^$', views.userkey_list, name='userkey_list'),
+  url(r'^add$', views.userkey_add, name='userkey_add'),
+  url(r'^(?P<pk>\d+)$', views.userkey_edit, name='userkey_edit'),
+  url(r'^(?P<pk>\d+)/delete$', views.userkey_delete, name='userkey_delete'),
+]
diff --git a/django_sshkey/views.py b/django_sshkey/views.py
index fa0b2ac..42b8345 100644
--- a/django_sshkey/views.py
+++ b/django_sshkey/views.py
@@ -30,7 +30,7 @@
 from django.http import HttpResponse, HttpResponseRedirect
 from django.views.decorators.http import require_http_methods, require_GET
 from django.views.decorators.csrf import csrf_exempt
-from django.shortcuts import get_object_or_404, render_to_response
+from django.shortcuts import get_object_or_404, render
 from django.template import RequestContext
 from django.contrib import messages
 from django.contrib.auth.decorators import login_required
@@ -76,10 +76,8 @@ def lookup(request):
 @require_GET
 def userkey_list(request):
   userkey_list = UserKey.objects.filter(user=request.user)
-  return render_to_response(
-    'sshkey/userkey_list.html',
-    {'userkey_list': userkey_list, 'allow_edit': settings.SSHKEY_ALLOW_EDIT},
-    context_instance=RequestContext(request),
+  return render(request, 'sshkey/userkey_list.html',
+    context={'userkey_list': userkey_list, 'allow_edit': settings.SSHKEY_ALLOW_EDIT}
   )
 
 
@@ -92,7 +90,7 @@ def userkey_add(request):
     form = UserKeyForm(request.POST, instance=userkey)
     if form.is_valid():
       form.save()
-      default_redirect = reverse('django_sshkey.views.userkey_list')
+      default_redirect = reverse('django_sshkey:userkey_list')
       url = request.GET.get('next', default_redirect)
       if not is_safe_url(url=url, host=request.get_host()):
         url = default_redirect
@@ -101,11 +99,8 @@ def userkey_add(request):
       return HttpResponseRedirect(url)
   else:
     form = UserKeyForm()
-  return render_to_response(
-    'sshkey/userkey_detail.html',
-    {'form': form, 'action': 'add'},
-    context_instance=RequestContext(request),
-  )
+  return render(request, 'sshkey/userkey_detail.html',
+    context={'form': form, 'action': 'add'})
 
 
 @login_required
@@ -120,7 +115,7 @@ def userkey_edit(request, pk):
     form = UserKeyForm(request.POST, instance=userkey)
     if form.is_valid():
       form.save()
-      default_redirect = reverse('django_sshkey.views.userkey_list')
+      default_redirect = reverse('django_sshkey:userkey_list')
       url = request.GET.get('next', default_redirect)
       if not is_safe_url(url=url, host=request.get_host()):
         url = default_redirect
@@ -129,11 +124,8 @@ def userkey_edit(request, pk):
       return HttpResponseRedirect(url)
   else:
     form = UserKeyForm(instance=userkey)
-  return render_to_response(
-    'sshkey/userkey_detail.html',
-    {'form': form, 'action': 'edit'},
-    context_instance=RequestContext(request),
-  )
+  return render(request, 'sshkey/userkey_detail.html',
+    context={'form': form, 'action': 'edit'})
 
 
 @login_required
@@ -145,4 +137,4 @@ def userkey_delete(request, pk):
   userkey.delete()
   message = 'SSH public key %s was deleted.' % userkey.name
   messages.success(request, message, fail_silently=True)
-  return HttpResponseRedirect(reverse('django_sshkey.views.userkey_list'))
+  return HttpResponseRedirect(reverse('django_sshkey:userkey_list'))
diff --git a/setup.py b/setup.py
index 493bb64..dc41303 100644
--- a/setup.py
+++ b/setup.py
@@ -59,6 +59,8 @@
     'Programming Language :: Python :: 2.7',
     'Programming Language :: Python :: 3.3',
     'Programming Language :: Python :: 3.4',
+    'Programming Language :: Python :: 3.5',
+    'Programming Language :: Python :: 3.6',
     'Topic :: Internet :: WWW/HTTP',
     'Topic :: Internet :: WWW/HTTP :: Dynamic Content',
   ],
diff --git a/testproject/settings.py b/testproject/settings.py
index f27545d..4bf6348 100644
--- a/testproject/settings.py
+++ b/testproject/settings.py
@@ -23,8 +23,6 @@
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = True
 
-TEMPLATE_DEBUG = True
-
 ALLOWED_HOSTS = []
 
 
@@ -85,9 +83,26 @@
 
 STATIC_URL = '/static/'
 
-TEMPLATE_DIRS = (
-  os.path.join(BASE_DIR, 'testproject', 'templates'),
-)
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [
+            os.path.join(BASE_DIR, 'testproject', 'templates'),
+        ],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.contrib.auth.context_processors.auth',
+                'django.template.context_processors.debug',
+                'django.template.context_processors.i18n',
+                'django.template.context_processors.media',
+                'django.template.context_processors.static',
+                'django.template.context_processors.tz',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
 
 import getpass
 import socket
diff --git a/testproject/urls.py b/testproject/urls.py
index d697339..a197779 100644
--- a/testproject/urls.py
+++ b/testproject/urls.py
@@ -1,12 +1,9 @@
-try:
-  from django.conf.urls import patterns, include, url
-except ImportError:
-  from django.conf.urls.defaults import patterns, include, url
+from django.conf.urls import include, url
 
 from django.contrib import admin
 admin.autodiscover()
 
-urlpatterns = patterns('',
-  url(r'^', include('django_sshkey.urls')),
+urlpatterns = [
+  url(r'^', include('django_sshkey.urls', namespace='django_sshkey')),
   url(r'^admin/', include(admin.site.urls)),
-)
+]
diff --git a/tox.ini b/tox.ini
index 5b88777..a65f48e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = django16,django18,django19,flake8
+envlist = django18,django19,django110,django111,flake8
 
 [testenv]
 commands = {envpython} manage.py test django_sshkey.tests []
@@ -12,7 +12,15 @@ deps =
 
 [testenv:django19]
 deps =
-    Django < 2.0
+    Django < 1.10
+
+[testenv:django110]
+deps =
+    Django < 1.11
+
+[testenv:django111]
+deps =
+    Django < 1.12
 
 [testenv:flake8]
 commands = flake8 lookup.py manage.py setup.py django_sshkey