diff --git a/CHANGES.rst b/CHANGES.rst
index e97de57..adf4092 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,9 +1,18 @@
 Change Log
 ==========
 
+0.9.0
+-----
+* Added Django 1.8 compatibility.  The current implementation has a
+  hackish (but functional) implementation to use PostgreSQL's
+  `array_agg` function.  Pull requests are welcome.
+* Retained compatibility with Django 1.7, though we still depend on the
+  `dbarray` package for this even though not strictly required with
+  Django 1.8.  Once again, pull requests are welcome.
+
 0.8.1
 -----
-* Add missing dependency on `pybars3` used to render boilerplate HTML 
+* Add missing dependency on `pybars3` used to render boilerplate HTML
   template when serving Meteor application files.
 
 0.8.0
@@ -14,7 +23,7 @@ Change Log
 
 0.7.0
 -----
-* Refactor serialization to improve performance through reduced number 
+* Refactor serialization to improve performance through reduced number
   of database queries, especially on sub/unsub.
 * Fix login/logout user subscription, now emitting user `added`/
   `removed` upon `login`/`logout` respectively.
@@ -28,9 +37,9 @@ Change Log
 -----
 * Send `removed` messages when client unsubscribes from publications.
 * Add support for SSL options and --settings=SETTINGS args in dddp tool.
-* Add `optional` and `label` attributes to ManyToManyField simple 
+* Add `optional` and `label` attributes to ManyToManyField simple
   schema.
-* Check order of added/changed when emitting WebSocket frames rather 
+* Check order of added/changed when emitting WebSocket frames rather
   than when queuing messages.
 * Move test projects into path that can be imported post install.
 
@@ -40,7 +49,7 @@ Change Log
 
 0.6.2
 -----
-* Bugfix issue where DDP connection thread stops sending messages after 
+* Bugfix issue where DDP connection thread stops sending messages after
   changing item that has subscribers for other connections but not self.
 
 0.6.1
@@ -49,7 +58,7 @@ Change Log
 * Dump stack trace to console on error for easier debugging DDP apps.
 * Fix handing of F expressions in object change handler.
 * Send `nosub` in response to invalid subscription request.
-* Per connection tracking of sent objects so changed/added sent 
+* Per connection tracking of sent objects so changed/added sent
   appropriately.
 
 0.6.0
diff --git a/README.rst b/README.rst
index 1e87a46..9fd100c 100644
--- a/README.rst
+++ b/README.rst
@@ -18,11 +18,12 @@ Peer servers subscribe to aggregate broadcast events which are de-multiplexed an
 
 Limitations
 -----------
-The current release series only supports DDP via WebSockets_.  Future
-development may resolve this by using SockJS, to support browsers that
-don't have WebSockets.
+* No support for the SockJS protocol to support browsers that
+  don't have WebSockets_ (see http://caniuse.com/websockets for
+  supported browsers).
 
-Changes must be made via the Django ORM as django-ddp uses `Django signals`_ to receive model save/update signals.
+* Changes must be made via the Django ORM as django-ddp uses `Django
+  signals`_ to receive model save/update signals.
 
 
 Installation
diff --git a/dddp/__init__.py b/dddp/__init__.py
index a2d4dcd..7c3c404 100644
--- a/dddp/__init__.py
+++ b/dddp/__init__.py
@@ -26,10 +26,9 @@ REMOVED = 'removed'
 
 def greenify():
     """Patch threading and psycopg2 modules for green threads."""
-    if 'threading' in sys.modules:
+    from gevent.monkey import patch_all, saved
+    if ('threading' in sys.modules) and ('threading' not in saved):
         raise Exception('threading module loaded before patching!')
-
-    from gevent.monkey import patch_all
     patch_all()
 
     from psycogreen.gevent import patch_psycopg
diff --git a/dddp/api.py b/dddp/api.py
index 603748d..cdce7b7 100644
--- a/dddp/api.py
+++ b/dddp/api.py
@@ -12,7 +12,10 @@ from django.conf import settings
 from django.contrib.auth import get_user_model
 from django.db import connection, connections
 from django.db.models import aggregates, Q
-from django.db.models.expressions import ExpressionNode
+try:
+    from django.db.models.expressions import ExpressionNode
+except ImportError:
+    from django.db.models import Expression as ExpressionNode
 from django.db.models.sql import aggregates as sql_aggregates
 from django.utils.encoding import force_text
 from django.db import DatabaseError
@@ -48,6 +51,7 @@ class Array(aggregates.Aggregate):
     """Array aggregate function."""
 
     func = 'ARRAY'
+    function = 'array_agg'
     name = 'Array'
 
     def add_to_query(self, query, alias, col, source, is_summary):
@@ -64,9 +68,17 @@ class Array(aggregates.Aggregate):
                 return 'ArrayType'
 
         new_source = ArrayField()
-        super(Array, self).add_to_query(
-            query, alias, col, new_source, is_summary,
-        )
+        try:
+            super(Array, self).add_to_query(
+                query, alias, col, new_source, is_summary,
+            )
+        except AttributeError:
+            query.aggregates[alias] = new_source
+
+    def convert_value(self, value, expression, connection, context):
+        if not value:
+            return []
+        return value
 
 
 def api_endpoint(path_or_func):
diff --git a/dddp/apps.py b/dddp/apps.py
index 9cbd8bc..6692e6b 100644
--- a/dddp/apps.py
+++ b/dddp/apps.py
@@ -4,11 +4,8 @@ from __future__ import print_function
 
 from django.apps import AppConfig
 from django.conf import settings, ImproperlyConfigured
-from django.db import DatabaseError
-from django.db.models import signals
 
 from dddp import autodiscover
-from dddp.models import Connection
 
 
 class DjangoDDPConfig(AppConfig):
diff --git a/dddp/msg.py b/dddp/msg.py
index 892f49f..4029b5b 100644
--- a/dddp/msg.py
+++ b/dddp/msg.py
@@ -1,16 +1,22 @@
 """Django DDP utils for DDP messaging."""
 from copy import deepcopy
 from dddp import THREAD_LOCAL as this, REMOVED
-from django.db.models.expressions import ExpressionNode
+try:
+    from django.db.models.expressions import ExpressionNode
+except AttributeError:
+    ExpressionNode = None
 
 
 def obj_change_as_msg(obj, msg):
     """Generate a DDP msg for obj with specified msg type."""
-    # check for F expressions
-    exps = [
-        name for name, val in vars(obj).items()
-        if isinstance(val, ExpressionNode)
-    ]
+    if ExpressionNode is None:
+        exps = False
+    else:
+        # check for F expressions
+        exps = [
+            name for name, val in vars(obj).items()
+            if isinstance(val, ExpressionNode)
+        ]
     if exps:
         # clone and update obj with values but only for the expression fields
         obj = deepcopy(obj)
diff --git a/setup.py b/setup.py
index 99d473e..c768106 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@ from setuptools import setup, find_packages
 
 setup(
     name='django-ddp',
-    version='0.8.1',
+    version='0.9.0',
     description=__doc__,
     long_description=open('README.rst').read(),
     author='Tyson Clugg',
@@ -14,10 +14,10 @@ setup(
     packages=find_packages(),
     include_package_data=True,
     install_requires=[
-        'Django>=1.7,<1.8',
+        'Django>=1.7',
         'psycopg2>=2.5.4',
         'gevent>=1.0',
-        'gevent-websocket>=0.9',
+        'gevent-websocket>=0.9,!=0.9.4',
         'meteor-ejson>=1.0',
         'psycogreen>=1.0',
         'django-dbarray>=0.2',