[RELEASE] release-2.2.0 tasks #2177

Release task list

Project board: spack-stack-2.2.x (2026 Q4)

Release timeline

• Feature freeze for deployment of release candidate: October 16, 2026
• Code freeze for deployment of release and final testing: October 19, 2026
• Release date: planned October 30, 2026

Tasks

• Create release branches release/x.y for spack, spack-packages, and spack-stack (update .gitmodules in spack-stack accordingly)
• Clear project board (no open pull requests other than for specific site configs or documentation)
• Prepare Wiki page for release (https://github.com/jcsda/spack-stack/wiki): https://github.com/JCSDA/spack-stack/wiki/Release-2.2.0
• Roll out release x.y.z from release branch release/x.y and update documentation (readthedocs), site config, and wiki page each time
  • Acorn (NOAA OMD)
  • Atlantis (NRL) deployed as spack-stack-dev-20261020 for acceptance testing
  • Blueback (NRL) deployed as spack-stack-dev-20261020 for acceptance testing
  • Derecho (NCAR)
  • Discover (JCSDA)
  • Gaea (EPIC)
  • Hercules (EPIC)
  • Narwhal (NRL) deployed as spack-stack-dev-20261020 for acceptance testing
  • NAS (NASA)
  • Nautilus (NRL) deployed as spack-stack-dev-20261020 for acceptance testing
  • Orion (EPIC)
  • Ursa (EPIC)
  • JCSDA AWS Parallelcluster (JCSDA)
  • JCSDA AWS AMI (JCSDA)
  • JCSDA CI containers (JCSDA)
  • NAVY PW AWS (NRL)
  • NOAA PW AWS (EPIC)
  • NOAA PW Azure (EPIC)
  • NOAA PW Gcloud (EPIC)
• Tag repositories spack, spack-packages, and spack-stack ((update .gitmodules in spack-stack accordingly)
• Finalize Wiki page for release (https://github.com/jcsda/spack-stack/wiki)
• Prepare and publish release notes: https://github.com/JCSDA/spack-stack/releases
• As needed, merge pull requests into release branches back into develop / spack-stack-dev
  • [release/2.2] Bug fixes for HDF5 compiler wrappers for version 2.1.0 spack-packages#101: Cherry-pick from release/2.2: Bug fixes for HDF5 compiler wrappers for version 2.1.0 (#101) spack-packages#102
  • [release/2.2] discover-gmao: set target x86_64_v3, et al #2182: [develop] Cherry-pick from release/2.2 part 1 #2189
  • [release/2.2] Atlantis: llvm-22.1.7 --> llvm-23.1.2 #2184: [develop] Cherry-pick from release/2.2 part 1 #2189
  • [release/2.2] GMAO batch_install.sh: use private TMPDIR on discover #2185: [develop] Cherry-pick from release/2.2 part 1 #2189
  • [release/2.2] Few fixes for NOAA Tier1 machines  #2191
  • [release/2.2] fms: add -fno-tree-loop-if-convert for gcc >= 12 spack-packages#103
  • [release/2.2] GMAO batch_install.sh: restore private TMPDIR after module preload #2193
  • Promote aws-ubuntu site to tier1 and update for Ubuntu 26.04 #2194
  • [release/2.2] Add mapl@2.69.1 ^esmf@8.9.1 to unified environment #2195
  • [release/2.2] Container site updates; move to new compilers and Ubuntu 26.04 #2197