Comment on January 2016 CU for SharePoint 2013 product family is available for download by Symon

Hi,

I have installed the MSDN ISO SharePoint 2013 with SP1 (15.0.4569.1506) with no other updates.

Do I need to run first the true SP1 (kb2880552) before installing this January 2016 CU ?

Also will there be an ISO with SP2 eventually?

Thanks,
Symon