Is it possible that icpc in 2013 Update 3 is still version 13.0.2, whereas the same update for Linux and Windows is coming with icpc version 13.1.1?
When should I expect to have the C++11 features of icpc 13.1 on OS X?
Yes, I looked at that list, but it seems outdated. It doesn't include version 13.1, which introduced support for c++11 union types, i.e. supporting geenric c++ types in the union.