What's New? Intel® Threading Building Blocks 2017 Update 2

Changes (w.r.t. Intel TBB 2017):

Bugs fixed:

- Fixed the issue with task_arena::execute() not being processed when the calling thread cannot join the arena.
- Fixed dynamic memory allocation replacement failure on macOS* 10.12 and Windows* 10 Anniversary Update.
- Fixed emplace() method of concurrent unordered containers not to require a copy constructor.

For more complete information about compiler optimizations, see our Optimization Notice.