On Mon, Feb 5, 2018 at 2:51 PM, Nick Coghlan <ncoghlan@gmail.com> wrote:

As an illustrative example, manylinux1 was essentially manylinux2007,
and it's now running into problems precisely because that baseline is
more than a decade old. That's not obvious if all you know is the
sequential number "1", but it makes intuitive sense once you realise
the effective baseline year is back in 2007.

The 2007 baseline of a fairly conservative enterprise Linux distribution, which relatively liberally backports features in point releases over the lifespan. As discussed, the year does not ultimately mean all that much. Just going with sequential version numbers exposes and/or hides just enough for the end user.

Is there a particular reason for not picking RHEL 7 as the base for manylinux2 at this point?

Joni Orponen