3 - Changed existing non-blocking `pop` methods to `try_pop`
4 - Added blocking `pop` support to Michael-Scott queue
5 - Added Chase-Lev work-stealing deque
9 - Added [epoch-based memory management](http://aturon.github.io/blog/2015/08/27/epoch/)
10 - Added Michael-Scott queue
11 - Added Segmented array queue