GD Rating System Pro 2.5 is a major new version that brings only very important and critical fixes and updates targetting addons mostly and preparing things for the 3.0 due in December.
This version adds a lot of improvements related to the plugin core, and things behind the scenes, there are no new changes visible to users. Plugin now uses a new d4pLib shared library, improves to some filters and actions, improves on the rating methods loading and on functions to prepare queries.
And, it also fixes a lot of bugs: problems with lists rendering (missing some default query arguments in some cases and showing ratings for deleted posts), major problem with initializing the user object for visitors (affecting the addons only) and few problems with the query object (issues with limit and offset arguments and problem with filtering data for taxonomy entity).
If you find any issues with the plugin, please use the support forum to report them.