Minimum 1.6.x version is 1.6.3

Author: tomchristie

README.md

@@ -34,7 +34,7 @@ There is a live example API for testing purposes, [available here][sandbox].
 # Requirements
 
 * Python (2.6.5+, 2.7, 3.2, 3.3, 3.4)
-* Django (1.4.11+, 1.5.6+, 1.6, 1.7)
+* Django (1.4.11+, 1.5.6+, 1.6.3+, 1.7)
 
 # Installation
 

docs/index.md

@@ -51,7 +51,7 @@ Some reasons you might want to use REST framework:
 REST framework requires the following:
 
 * Python (2.6.5+, 2.7, 3.2, 3.3, 3.4)
-* Django (1.4.11+, 1.5.6+, 1.6, 1.7)
+* Django (1.4.11+, 1.5.6+, 1.6.3+, 1.7)
 
 The following packages are optional:
 

tox.ini

@@ -10,10 +10,10 @@ commands = ./runtests.py --fast
 setenv =
        PYTHONDONTWRITEBYTECODE=1
 deps =
-       django14: Django==1.4.11
-       django15: Django==1.5.6
-       django16: Django==1.6.8
-       django17: Django==1.7.1
+       django14: Django==1.4.11  # Should track minimum supported
+       django15: Django==1.5.6  # Should track minimum supported
+       django16: Django==1.6.3  # Should track minimum supported
+       django17: Django==1.7.3  # Should track maximum supported
        djangomaster: https://github.com/django/django/zipball/master
        {py26,py27}-django{14,15,16,17}: django-guardian==1.2.3
        {py26,py27}-django{14,15,16}: oauth2==1.5.211