This is an older version and was released in 2016. The current version is 1.86.0.
Portable networking and other low-level I/O, including sockets, timers, hostname resolution, socket iostreams, serial ports, file descriptors and Windows HANDLEs.
C++
11
Shared memory, memory mapped files, process-shared mutexes, condition variables, containers and allocators.
C++
03
Message Passing Interface library, for use in distributed-memory parallel application programming.
C++
03