Version 2.2.0

• Refactor of the persistant cache for consistent results when using the plugin filters
• Better data sanitation for taxonomies and comma separated values
• New PHPunit tests (GitHub only)

Version 2.1.1

• Enhancement
  • Add Spanish, Catalan and Polish translation files
• Bug fixes
  • Fix minor regression bug with the hide empty filter.
  • Fix minor bug where the wrong default post type was being used by the shortcode.

Version 2.0.1

• New option for the widget to randomise the related posts.
• Refactored the query to get the related posts.
• Orginized files in the new 'includes' directory.
• Added a new class for debugging (only loaded if needed, with a filter).
• New PHPUnit tests for the widged (GitHub only).
• Updated the widget constructor as it is deprecated with WP 4.3
• Added a new (beta) front end cache layer.