On 2014-11-14, Thomas Spura <tomspur(a)fedoraproject.org> wrote:
I'll update the zeromq package to version 4 next week in rawhide,
which
will break all existing packages that depend on the current zeromq package
as there have been quite some changes [1].
[...]
Similarly, I'd like to retire the zeromq3 package,
Is zeromq4 protocol compatible with zeromq3? And with zeromq2? Or are
they backward compatible?
-- Petr