On Tue, Dec 14, 2021, at 9:13 PM, Rajendran, Sree Ranjani wrote: > I'm writing this mail in request to know whether gm4 version (from > 1.4.6 to latest) can be upgraded in Mac M1 Chip 2020 model.
You should not (and I expect cannot, at this point) replace the M4 that Apple ships, but you can install your own copy of the latest M4 in the usual way: by downloading the source, compiling it, and installing it. The source tarballs contain install instructions. https://www.gnu.org/software/m4/ You could also install it via a third-party package manager, such as MacPorts or Homebrew. -- vq