MPICH 4.2.3 released

A new stable release of MPICH, 4.2.3, is now available for download. This release addresses a number of user-reported crashes and build issues. It can be found on our downloads page. For the full set of commits see https://github.com/pmodels/mpich/compare/v4.2.2…v4.2.3/

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                         Changes in 4.2.3
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# Update embedded libfabric to fix a build issue on FreeBSD

# Fix HIP support for use with AMD GPUs

# Fix potential invalid context issue in CUDA memory hooks

# Fix GPU fallback path in ch4/ofi for Intel GPU buffers

# Fix IPC handle destruction with Level Zero API (Intel GPU)

# Fix potential crash in MPI_ISENDRECV with derived datatypes

# Fix bug in persistent MPI_GATHER that incorrectly cached buffer
contents at init time

# Fix memory allocation bug in ROMIO GPFS driver

# Fix missing error names in ch4/ofi netmod

# Fix potential hang in multi-VCI active message RMA

# Fix bug in ch3 large count support with derived datatypes

# Fix manpage generation to provide aliases for large-count versions

# Fix potential crash in Hydra with long PMI command messages

# Fix bug in exit status capture in Hydra when there are multiple
processes with non-zero exit

# Fix implementation of C/Fortran status conversion functions

# Fix implementation of MPI_Type_create_f90_xxx functions