Changelog
=========

Version 0.1.0
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Initial release

**Features**

- Implementation of the Lee and Wooldridge (2025) DiD estimator
- Four transformation methods: demean, detrend, demeanq, detrendq
- Multiple variance estimators: homoskedastic, HC1, HC3, cluster-robust
- Randomization inference
- Period-specific treatment effects
- Visualization and export capabilities
