We updated the ColdFusion 10 Mandatory Update bits on Nov 21, 2013. This has been done to implement certain internal changes in the code signing mechanism.
Users who are on ColdFusion 10
Update 8 and above are not affected by this change. They need not reapply the Mandatory Udpate. Users on Update level 7 and below can follow this article to reapply the Mandatory
Users on a new ColdFusion 10 installation (build number 282482 or 283922) should apply the Mandatory Update.
Users who need to install updates older than Update 8, can reference this article to download and install the required update.