<p>Here <a href="https://quay.io/repository/coreos/hyperkube?tab=tags" rel="nofollow noreferrer">https://quay.io/repository/coreos/hyperkube?tab=tags</a> you can see that
there are two tags for 1.6.6:</p>

<ul>
<li>v1.6.6_coreos.0</li>
<li>v1.6.6_coreos.1</li>
</ul>

<p>What is the meaning of 0 and 1?<br>
What is the difference between the images?</p>

<p>According to <a href="https://github.com/coreos/kubernetes/releases" rel="nofollow noreferrer">https://github.com/coreos/kubernetes/releases</a> , these are identical images, but one was re-tagged to allow new hyperkube image build at quay.io . For details, please have a look into provided link.</p>
