October 2013 Cumulative Update Packages for SharePoint Foundation 2013 and SharePoint Server 2013 have been released
October 2013 CU for SharePoint Foundation 2013 – KB 2825674
October 2013 CU for SharePoint Server 2013 – KB 2825647
Note: This is build 15.0.4551.1001 of the cumulative update package.
Important: March 2013 PU for SharePoint Server 2013 is mandatory to install this update.
Updates Center for SharePoint 2013
Common Question: What is the difference between a PU, a CU and a COD
