Sorry to be late to the party.  Is the package available via yum in the centos-release-openshift-origin repository?
If so, something is wrong with the mirror distribution as I installed yesterday(2017-8-9) and got version 1.5.1.  
My search today doesn't find it either.

On Thu, Aug 10, 2017 at 6:16 AM, Troy Dawson <tdawson@redhat.com> wrote:
Hi All,
We've had origin 3.6.0 out for close to a week.
Thus far it's passed all the tests we have thrown at it.  But our
tests might not be your tests.
Please give it a test and report back.  I will assume no news is good news.

origin-3.6.0-1.0.c4dd4cf
openshift-ansible-3.6.173.0.3-1.el7.noarch.rpm
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