Minimac3 ChangeLog
From Genome Analysis Wiki
Introduction
Minimac3 is a lower memory and more computationally efficient implementation of minimac2. It is an algorithm for genotypic imputation that works on phased genotypes (say from MaCH) and is designed to handle very large reference panels in a more computationally efficient way with no loss of accuracy.
This wiki page gives users a summary of changes over the versions.