30 Jun 2016
This release is a critical hotfix for a sporadic issue that leads to errors rendering content (which leads in turn to datatable errors in the admin, for example). The errors you receive will appear along the lines of:
All users of 10.6.x should upgrade. Users of 10.5.x and below should be advised to upgrade to 10.6.4 as soon as possible.
[PRESIDECMS-443] - Renderers still sporadically get "lost" causing to all sorts of problems