Usual place: http://www.open-mpi.org/software/ompi/v1.8/
I'm happy to receive suggestions about the NEWS - here is what I have: 1.8.5 ----- - Updated the internal HWLOC with several bug fixes - Fixed several bugs in OpenSHMEM support - Extended vader shared memory support to 32-bit architectures - Fixed a bug in handling subarray datatypes - Don't use inline functions with Clang compiler - Multiple bug fixes for cleanup during finalize in unusual situations - Added support for TCP keepalive signals to ensure timely termination when sockets between daemons cannot be created (e.g., due to a firewall) - Added MCA parameter to allow full use of a SLURM allocation when started from a tool (supports LLNL debugger) - Fixed several bugs in the configure logic for PMI and HWLOC - Cleaned up documentation in a few places (e.g., MPI_Comm_split_type) - Fixed prototypes for MPI_Barrier - Fixed a number of one-sided bugs - Fixed singleton MPI_Comm_spawn - Fixed a number of minor issues with CUDA support, including registering of shared memory - Improved support for Cray - Fixed performance regression introduced by inadvertent default enabling of thread support