C++11 STL containers and thread safety

Question

I have trouble finding any up-to-date information on this.

Do C++11 versions of STL containers have some level of thread safety guaranteed?

I do expect that

Answer 1

No. Check out PPL or Intel TBB for thread safe STL-like containers.

Like others have noted they have usual "multiple reader thread safety" but that is even pre C++11. Ofc this doesnt mean single writer multiple readers. It means 0 writers. :)