v0.4.1
[0.4.1] - 2026-05-14
🚀 Features
- Add ewm_covariance with pure-numpy implementation
- Restore polars-based ewm_covariance implementation
- Export ewm_covariance from package and update README
💼 Other
- Bump version 0.4.0 → 0.4.1
📚 Documentation
- Add badges to README
🧪 Testing
- Bring coverage to 100%