BizTalk 2013R2 CU2 Release
A couple weeks ago the Cumulative Update 2 for BizTalk 2013R2 was released.
Steven Van Eycken had some problems with the BizTalk mappings. See his Blog Post for more information
Today Microsoft released the new CU2 package with a fix for this problem. You can find it here
Have fun with the new package... :)