Due to high work load, I'm again a bit delayed. Please apologize…
As usual, here is the August 2013 CU release. please find all info below.
In order to install future updates, the March 2013 PU will be mandatory! So you must install these updates on RTM Farms before you can install subsequent updates in the future! - Click here for Download March PU 2013!
For servers that include search components, you have to follow specific steps to ensure that you install the PU correctly.
Please find here important advise on how to do that correctly:
How to install update packages on a SharePoint farm where search component and high availability search topologies are enabled
As usual, you need to run the SharePoint 2013 Products Configuration Wizard on each machine in the farm after installing the packages.
The SharePoint Server pack contains the Foundation packs, so you basically only need to install one Package.
The project Server Packs are containing both, so if you install this one, no need for the other two to install additionally.
August 2013 CU for SharePoint 2013:
Build Number: 15.0.4535.1000
KB 2817517 - SharePoint Foundation 2013
KB 2817616 - SharePoint Server 2013
KB 2817521 - Office Web Apps Server 20132
KB 2817507 - SharePoint Designer 2013
KB 2817615 - SharePoint Server 2013 with Project Server 2013