Yes it should be fully updated.
ccbGetClosestNode actually works fine. It will show this error message when you run the default CopperCube referencing the new API without actually running the compiled binary - so check that. Or save yout CC exe file. Edit its name to "app" when using the free version and run the compiled binary or better still - run a shortcut to the binary with " -debug" at the end of the Target - ie something like: "C:\SATURN 7\win32player.exe" -debug