Frequenz Python SDK Release Notes

New Features

Resampler: The resampler can now be configured to have the resampling window closed to the right (default) or left, and to also set the resampler timestamp to the right (default) or left end of the window being resampled. You can configure setting the new options closed and label in the ResamplerConfig.

Improved formula validation: Consistent error messages for invalid formulas and conventional span semantics.
This fixes a rare power distributor bug where some battery inverters becoming unreachable because of network outages would lead to excess power values getting set. This is fixed by measuring the power of the unreachable inverters through their fallback meters and excluding that power from what is distributed to the other inverters.
Fixed stopping formulas: It will now also stop the evaluator and sub-formulas correctly.

Clear release notes by @shsms in #1358
Improve formula validation by @simonvoelcker in #1359
Bump the compatible group with 2 updates by @dependabot[bot] in #1360
Bump the patch group with 6 updates by @dependabot[bot] in #1363
Bump actions/download-artifact from 7 to 8 by @dependabot[bot] in #1361
Bump actions/upload-artifact from 5 to 7 by @dependabot[bot] in #1362
Bump isort from 7.0.0 to 8.0.1 by @dependabot[bot] in #1364
Bump mkdocstrings-python from 1.18.2 to 2.0.3 by @dependabot[bot] in #1370
Bump nox from 2025.11.12 to 2026.2.9 by @dependabot[bot] in #1367
Bump types-setuptools from 80.10.0.20260124 to 82.0.0.20260210 by @dependabot[bot] in #1365
Bump types-protobuf from 6.32.1.20251210 to 6.32.1.20260221 by @dependabot[bot] in #1368
Enhance ResamplerConfig with closed and label options and add comprehensive tests by @malteschaaf in #1344
Make power distributor resilient to battery inverters becoming unreachable by @shsms in #1373
Override Formula.cancel() and .wait() rather than .stop() by @simonvoelcker in #1375
Switching from our own Peekable implementation to more-itertools.peekable. by @simonvoelcker in #1376
Add repo-config auto-migration workflow by @llucax in #1377
Prepare for release v1.0.0-rc2205 by @shsms in #1385

Full Changelog: v1.0.0-rc2204...v1.0.0-rc2205