* Fix the scipy sparse linalg import issue * Add the function to quickly identify the N-2 islanding contingencies * Add the functions for robustness and ecological analysis * Preliminary support for Streamlit (getting close to thread-safe) * Add the support for Python 3.10
1.2.8
* Native support of sensitivity analysis (ISF, PTDF, and LODF) for much better performance and much less memory usage
1.2.7
* Officially support PW23 * Support obtaining LODF matrix from large case (>1000 branches) * Fix the self-loop issue when generating inter-substation level graph model
1.2.6
* Add a method to convert dataframe into auxiliary (aux/axd) data section * Add methods to obtain branch admittance and shunt admittance matrix
1.2.5
* Supports changing system parameters based on temperature * Add one new example for fast contingency analysis (a slightly improved implementation of [Fast and Reliable Screening of N-2 Contingencies](https://ieeexplore.ieee.org/document/7390321). The original idea is proposed by Dr. P. A. Kaplunovich and Dr. Konstantin Turitsyn from MIT)
1.2.4
* Supports latest PW V22 (2021 Nov and Dec builds) and V23