2.1.1

• Only fetch primary keys from a database for relationships when no filtering is required

2.1.0

Re-added FunctionsAPI until the next major release to let users to implement an alternative #23

2.0.3

• Fix: #26 - selectinload is broken for models that have primary keys other than 'id'. Disabled until a new schema is
  implemented
• Make 'primary_key' optional again #25 (by @tanj)

2.0.2

Fixed import for SQLAlchemy 1.3 #22

2.0.1

Refactored fetching resource collections:

• SQL query optimizations for 'include' and 'relationship' objects, using selectinload
  (3x-5x performance improvement when tested on large datasets)

• New parameter 'include_links' which controls should relationship objects include links. They are not required by
  JSON API, and disabling them significantly improves performance

• New interfaces for Serializer and Deserializer classes.

• APIManager requires Serializer/Deserializer objects instead of functions for serializer/deserializer options

Deprecations:

• 'single' parameter is no longer supported - makes code complicated, is not defined in JSON API specs and can be easily
  replicated on a client side

• 'group' parameter is not longer supported - not defined in JSON API specifications, confusing and broken for PostrgeSQL

• JSONP callbacks are no longer supported - please reach out if you have a use case for them

1.0.6

Fix redundant SQL queries

1.0.5

Fix for #16

1.0.4

#15 - Fix support for SQLAlchemy 1.4.x

1.0.2

• Fix #1, #13
• Fix #12

1.0.1

Fixes for #4 and #6