<div dir="auto">It may work, but we don't support 3.6 for a while and I'm not sure what issues you may encounter. <div dir="auto"><br></div><div dir="auto">It is safer to upgrade the engine first and the hosts later. 4.0 supports 3.6 compatibility, just make sure all cluster are 3.6 with el7 prior to updating. <br><br><div data-smartmail="gmail_signature" dir="auto">Yaniv Dary<br>Technical Product Manager<br>Red Hat Israel Ltd.<br>34 Jerusalem Road<br>Building A, 4th floor<br>Ra'anana, Israel 4350109<br><br>Tel : +972 (9) 7692306<br> 8272306<br>Email: <a href="mailto:ydary@redhat.com">ydary@redhat.com</a><br>IRC : ydary</div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Dec 15, 2016 6:49 PM, "Richard Chan" <<a href="mailto:richard@treeboxsolutions.com">richard@treeboxsolutions.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Planning and upgrade from 3.6.8 to 4.0.6:</div><div><br></div><div>4.0.6 mentions supporting CentOS 7.3 and qemu-kvm-ev 2.6</div><div><br></div><div>Is it possible in a 3.6.7 environment to upgrade all the hosts first to CentOS 7.3, vdsm 4.18, and qemu-kvm-ev 2.6 before tackling the engine? In other words, is the 4.0.6 host stack compatible with a 3.6.7 engine?</div><div><br></div><br clear="all"><div><br></div>-- <br><div class="m_-2460762405591521673gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><font color="#000000" face="Droid Sans"><span style="font-size:15px">Richard Chan</span></font></div><div dir="ltr"><br></div></div></div></div>
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