A new stable release of MPICH, 4.0.3, is now available for download. This is the third bug-fix release in the 4.0.x series. This release contains fixes for Message Queue Dumping Interface, HIP support, ROMIO, Intel OneAPI compilers, and other user-reported bugs and build issues. You can find the release on our downloads page (https://www.mpich.org/downloads/). Production environments are encouraged to upgrade to this release. Regards, The MPICH team =============================================================================== Changes in 4.0.3 =============================================================================== # Fix message queue dumping interface support # Fix multinic usage in ch4:ofi # Fix bug in MPI_WIN_CREATE in ch4:ucx when UCX >= 1.13.0 # Fix MPIR_pmi_barrier when PMI2 is used # Fix ROMIO lazy mutex initialization # Fix build with HIP support # Fix potential dynamic process message mixups in ch3 # Add missing const to MPI_Pready_list array_of_partitions argument # Add support for C++ datatypes even when the C++ binding is disabled # Add support for Intel OneAPI compilers A full list of changes is available at the following link: https://github.com/pmodels/mpich/compare/v4.0.2…v4.0.3