Machines Affected: All
A new environment variable is now set when you start a command line development system: CBLMODE is set to the appropriate bitism for the environment (32 or 64).
The value of this variable determines the type of native code produced on Windows systems when the -n compiler option is used. In 64-bit environments, this means that you can build a 64-bit executable (specifying -n) and immediately execute it. This has the same effect as if it was built with the --x64_Win compiler option.