anchor.diff:  - All json types. Including simple strings, floats, integers, booleans and null's.
   - Works well with python serialization.
   - Experimental: jsonb support in PostgreSQL >= 9.4
  +
   
   Limitations
   ~~~~~~~~~~~
  
positive.code: django-pgjson documentation
  ===========================
  Andrey Antukh, <niwi@niwi.be>
  0.2.0, 2014-09-13
  
  Experimental jsonb support by Charl P. Botha <cpbotha@vxlabs.com>
  
  
negative.code: ~~~~~~~~~~~~
  
  - Python 2.7 or 3.3+
  - Django 1.6, 1.7 and 1.8
  - psycopg2 2.5.0+
  - PostgreSQL 9.2+
  
  
  Supports
  ~~~~~~~~
  