I think there isn't an official one, but since 2016 there's been a major version released approximately every two years, and a minor version every couple of mon

I think there isn't an official one, but since 2016 there's been a major version released approximately every two years, and a minor version every couple of months. https://www.gnu.org/software/emacs/history.html https://www.gnu.org/software/emacs/history.html