Announcing the latest UDK2010 Release UDK2010.SR1.UP1. Goto Download the release and documentation. UDK2010.SR1.UP1 release will deliver the remaining UEFI 2.3.1 support that was deferred from UDK2010.SR1 release because of no logo requirement need. In addition, any logo requirements which have been clarified, deleted, changed, or added between November 1st and December 22, 2011 have been incorporated. Specific details of what is new is contained in the Release Notes.