This blog is updated daily.
A general description is here.
Fix cases where ‘M’ and ‘X’ matrices could be spanning the same subspace in ‘mauchly.test()’, ‘anova.mlm’, ‘anova.mlmlist’. (PR#16166, originally reported in 2015 by Florent Aubry, essentially analyzed Feb. 2020 just before the corona crisis, triaged 2026 by Michael Chirico)