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May 8, 2026
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Reset release notes #70

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14 changes: 11 additions & 3 deletions RELEASE_NOTES.md
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# Frequenz Microgrid Component Graph Library Release Notes

## Summary

<!-- Here goes a general summary of what this release is about -->

## Upgrading

- This release updates the `frequenz-microgrid-component-graph` rust crate version to 0.5. `ComponentGraphConfig` is restructured to match: the six per-category `prefer_X_in_Y_formula` flags are replaced by a global `prefer_meters_in_component_formulas` plus per-formula overrides via the new `FormulaOverrides` class. Also exposes the new `steam_boiler_formula` method, and renames `battery_coalesce_formula` / `pv_coalesce_formula` to `battery_ac_coalesce_formula` / `pv_ac_coalesce_formula`.
<!-- Here goes notes on how to upgrade from previous versions, including deprecations and what they should be replaced with -->

## New Features

<!-- Here goes the main new features and examples or instructions on how to use them -->

- `ComponentGraphConfig.__init__` is now declared as keyword-only in the type stubs (the runtime was already keyword-only, so positional calls were already failing at runtime).
## Bug Fixes

- The per-category preference flags inverted polarity: where the old flags selected the *device*, the new override entries select the *meter*. E.g. `ComponentGraphConfig(prefer_inverters_in_pv_formula=True)` becomes `ComponentGraphConfig(formula_overrides=FormulaOverrides(prefer_meters_in_pv_formula=False))`.
<!-- Here goes notable bug fixes that are worth a special mention or explanation -->
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