December 2025: ACCESS-NRI/access-om3-configs delivered a new control entry in the Experiment Registry to support MC_25km_jra_ryf+wombatlite model validation. This work added documentation to the experiment table and established a reproducible, auditable workflow for validating the combined model. No major defects were reported this month; maintenance focused on strengthening the validation workflow and documentation, improving governance, traceability, and decision support for model validation results.

August 2025 — ACCESS-NRI/spack-packages: Cross-package dependency stabilization across the oasis3-mct ecosystem to ensure reproducible builds and smoother downstream integration. Introduced new version definitions, established a stable preferred version, and updated maintainers to reflect changes. This work unifies versions across access-mocsy, access-generic-tracers, mom5, and oasis3-mct, enabling reliable builds in CI and downstream consumption.

May 2025 monthly summary for ACCESS-OM3 development. Delivered a robust dependency and tracer upgrade aligned with the 2025.05 baseline, enhancing reproducibility and enabling richer tracer workflows. Changes focused on updating core components, integrating new tracer libraries, and improving data provenance and consistency across simulations.

April 2025 monthly summary for ACCESS-NRI/spack-packages: Focused on stabilizing MOM5-related dependencies to improve build reliability and compatibility with updated MOM5 specs. Implemented targeted refactors by removing variant-type and generic-tracers dependencies from MOM5 specs in access-esm1p5 and access-esm1p6, and pinned MOM5 in access-om2-bgc to legacy-access-om2-bgc to ensure compatibility with ongoing MOM5 updates. These changes reduce downstream breakages, simplify maintenance, and pave the way for smoother MOM5 updates.

Month 2024-08: Focused on documentation, deployment readiness, and version alignment for ACCESS-ESM1.6. Completed updates to README and configuration files to reflect model changes, version alignment with MOM5 ESM1.6-dev, and deployment instructions to reduce setup time and ensure reproducibility across environments.