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Changelog

2.0.0 (2026-04-30)

Renamed and forked project to avoid version trouble. (Old version used date, not semantic versioning)
Migrated to uv for package and dependency management.
Added support for Python 3.13 and 3.14.
Added Makefile with developer targets: install, test, mypy, lint, format, check, coverage, ci.
Added ruff for formatting and linting.
Added full static type annotations throughout the source code (mypy clean).
Fix: STV quota was not updated after a ballot reset, causing winner determination and surplus redistribution to use the original (lower) quota instead of the recalculated one. This could produce incorrect winners in multi-seat elections where ballots exhaust before all seats are filled.
Fix: Schulze/Condorcet methods mutated the caller's ballot data in-place when converting from grouping or ranking notation to rating format. Input ballots are now deep-copied so reuse is safe.

Older versions (py-vote-core / python-vote-core)

20110509.1

Fixing PyPi release

20110509.0

Initial PyPi release