PC-SPAN Version 4.5 Build 575B

Please be advised that on Wednesday October 8^th, 2014 CME Clearing will release a new build of PC-SPAN®, Version 4.5 Build 575B, in the New Release environment. The Production release is currently scheduled for Friday October 17^th, 2014. This build includes new delivery margining functionality and is available for download through CME Core. Access to CME CORE requires a CME SMART CLICK ID. New users can register here: https://login.cmegroup.com/sso/register/.

This build upgrade is not mandatory as current products will not be affected. However, it is advisable that customers upgrade in order to properly calculate margin on any future products which may utilize this new functionality, the first of which will be cleared by CME Clearing Europe. An additional advisory will be sent out prior to the launch of any products employing this new functionality.