Release 0.6.0

[TimoDiepers]

Cuts release 0.6.0: bumps optimex.__version__ to 0.6.0 and dates the previously unreleased changelog section (2026-08-20). No functional code changes — everything below already landed on main via #64.

Highlights

• Performance: the notebooks/methanol_and_iron.ipynb case study runs end to end in 44 s instead of 613 s. Model build 103.6 s → 1.7 s, solve 55.7 s → 0.1 s, PostProcessor.get_dynamic_inventory() 19.8 s → 0.2 s, with identical results.
• Changed results: background_inventory.cutoff now defaults to None. The old default truncated background inventories before aggregation, biasing flow amounts low by up to 30%.
• Background databases are calculated in parallel by default; uncharacterized elementary flows are dropped from the model (background_inventory.retain_flows, restrict_to_characterized_flows).
• Background inventories are cached on disk per (project, database, activity); opt out with background_inventory.use_disk_cache, clear with lca_processor.clear_lca_caches(include_disk=True).
• Flow limits that cannot take effect are now reported instead of silently ignored.
• get_dynamic_inventory() no longer returns exactly-zero rows.

Minor bump rather than patch because of the changed cutoff default and the new raise in ModelInputManager.override().

Follow-up after merge

Tagging v0.6.0 / publishing a GitHub release triggers the PyPI and conda deploy workflows.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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