Thanks for starting that discussion! I added some thoughts to the discussion page on the wiki after Kushal sent me the proposal link.

I'd really like to see us take advantage of the stable ABI and pyc cache versioning in Python 3 to minimise the need to couple version compatible packages directly to a specific Python 3 version.

That would mean setting a baseline Python 3 version in EPEL (presumably the one that the python3 symlink targets), and allowing pure Python and stable ABI packages that support that version & later to be versioned as "python3".

Only packages that include binary extensions that *don't* use the stable ABI would need to be further qualified with the Python 3 minor version.

Cheers,
Nick.