>>>>> On Sun, 04 Aug 2024, Andreas K Huettel wrote:

> Step 4: Prepare and publish a migration guide for users.
> Right now I assume this will mostly mean "select new profile". However,
> I have no clue how portage reacts when $ARCH changes.

Presumably this will also require eselect to be updated (and stable):
https://gitweb.gentoo.org/proj/eselect.git/tree/libs/package-manager.bash.in#n70

Any good idea how to handle the transitional situation when old and new
arch keywords exist simultaneously?

Ulrich