vectorbt v1.1.1 Released

vectorbt v1.1.1 is officially released. This version optimizes the numerical stability of rolling standard deviation for the Numba and Rust engines, corrects the calculation logic for deflated Sharpe ratio, and adjusts the alignment rules for cross-engine expanding mean/standard deviation. This version is adapted to the built-in plotting themes of Plotly 7, while the documentation site has been migrated to Zensical.