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OpenHPC v2.10 Release: Major Toolchain and Library Upgrades for the 2.x Branch

By June 22, 2026No Comments

The OpenHPC community is pleased to announce the release of version 2.10, a major update to the 2.x branch targeting RHEL 8 variants and OpenSUSE Leap 15.3. This release was driven by community requests through tickets and personal contacts to bring the 2.x branch up to date with modern toolchains and libraries.

Key Highlights in OpenHPC v2.10

New Compiler Toolchains: GCC 15.2 (gnu15) has been added alongside the existing gnu12 toolchain, and Intel oneAPI has been updated to 2026.0. All HPC libraries are now built with both compiler families.

Major MPI Upgrades: OpenMPI 5.0.10 has been added alongside the existing OpenMPI 4, MPICH has been upgraded to the 5.x series, and MVAPICH2 to the 4.x series.

Major Slurm Upgrade: Slurm has been updated from the 23.11.x series to 25.05.x. Users running slurmdbd (Slurm DataBase Daemon) must update that component first. Please refer to the Slurm release notes for full details on the upgrade path.

Major Library Upgrades: This release includes significant version jumps for core HPC libraries: HDF5 2.x, Lmod 9.2.x, CMake 4.x, EasyBuild 5.3.1, and Python ecosystem tools including Cython 3.x, mpi4py 4.x, and NumPy 2.x. Scientific computing libraries PETSc 3.25.2, SLEPc 3.25.1, and Trilinos 17.0.0 were also updated.

Architecture Note: The aarch64 architecture variant has not been tested for this release due to lack of aarch64 test hardware.

Extensive Validation: The release was validated with over 20,000 tests across more than 32 hours of testing.

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