A new stable release of MPICH, 4.1.1, is now available for download. This is the first bug-fix release in the 4.1.x series. This release contains fixes for MPI Sessions, mpif.h Fortran support, MPI_IALLTOALLW, persistent MPI_ALLGATHER, testsuite usage with non-MPICH libraries, and updates to the embedded UCX and yaksa submodules. You can find the release on our downloads page (https://www.mpich.org/downloads/) Regards, The MPICH team =============================================================================== Changes in 4.1.1 =============================================================================== # Update embedded UCX module to 1.13.1. Fixes a build issue with binutils >= 2.39. # Update yaksa module. Support explicit NVCC setting by the user. Fixes a build issue when there is no libtool available in PATH. # Fix ch4:ucx initialization when configured with --enable-ch4-vci-method=implicit. # Fix potential error handler leak during MPI_SESSION_FINALIZE # Fix value of MPI_UNDEFINED in mpif.h binding # Fix MPI_IALLTOALLW with MPI_IN_PLACE # Fix send attribute handling in IPC path # Fix a bug in persistent MPI_ALLGATHER # Fix tests for use with non-MPICH libraries # Add missing MPI_T_ERR_NOT_ACCESSIBLE error code # Fix manpages for MPIX functions A full list of changes since 4.1 can be found here: https://github.com/pmodels/mpich/compare/v4.1...v4.1.1