Hi, I've just released gretl4py v0.4, which is available via PyPi infrastructure for: - ms windows, both: x86-64 and arm64 - macOS (signed), both: x86-64 and arm64 - linux, x86-64 only Note: macOS users shall install the package with "--user" option. What's new? - apparatus for slicing datasets (via '[]' operator) - GretlaDataset methods: ::dummyfi(), ::head(), ::tail(), ::to_dataframe(), ::lags(),  ::square(), ::discrete(), ::logs(), ::orthdev(), ::stdize() - '--unit' and '--time' options to GretlaDataset::sample() - Pooled OLS tweaks - add 'n' and 'k' properties do GretlDataset - add 'range' option for GretlDataset::print() - add nls, mle, and gmm estimators - add system estimation (all methods available in gretl) In addition, some bugs fixed, massive code refactoring, and revert to gcc-based libgretl for windows amd64 builds due to some OpenBLAS issues. Have fun!!! Marcin