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Historical 0.2.7 Step 1 release-freeze record

This page records the pre-stable freeze procedure. It is retained for traceability; the active public release summary is in the verification index.

Step 1 converts the owner-approved 0.2.7a0 candidate into the stable 0.2.7 release identity. The release commit and annotated tag are the single source for the Step 2 GitHub checks. PyPI publication is deliberately outside this step.

Frozen scope

  • TET4, TET10, HEX8 and HEX20 retain their documented bounded routes.
  • WEDGE6 static remains EXPERIMENTAL; WEDGE6 modal remains QUALIFIED_BOUNDED only for its declared first-three-mode scope.
  • 1M, 3M and 5M evidence remains bounded to the recorded structured TET4/PETSc/MPI configurations. 5M is Silver; 5M Gold is deferred.
  • The 10M C3 result remains bounded PASS_WITH_LIMITATIONS; no universal scaling, hardware, GPU, nonlinear or mixed-mesh claim is made.
  • MPI collective synchronization and structured MPIAIJ preallocation fixes, with their guards and provenance, are included.
  • Code_Aster remains bounded PASS_WITH_LIMITATIONS; CalculiX remains NOT_COMPARABLE where the formulation and observables are not equivalent.

Preserved limitations

Mixed meshes, WEDGE15, PYRAMID5, production HEX8R/SRI/B-bar, finite-kinematic J2, general dynamics/contact, experimental nonlinear and finite-sliding routes, deeper 10M scaling, 5M Gold, optional HPC routes and directly unverified macOS/Python combinations are not promoted by this freeze. Historical 0.2.7a0 audit records and legacy 96/100 views remain available as provenance and are not treated as the current release state.

Integrity

The machine-readable record is qualification/0_2_7/step1_release_freeze.json. The foreign 0.2.1 documentation change remains isolated in the preserved targeted stash and is not part of the release candidate. No numerical source, baseline, maturity decision or historical evidence was changed for the freeze.