Portable networking and other low-level I/O, including sockets, timers, hostname resolution, socket iostreams, serial ports, file descriptors and Windows HANDLEs.

C++11-style atomic<>.

Context switching library.

Coroutine library.

Shared memory, memory mapped files, process-shared mutexes, condition variables, containers and allocators.

Lockfree data structures.

No description provide for this version.

Portable C++ multi-threading. C++11, C++14.