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<p>I'm a little confused on the release notes. Is this considered an L2 upgrade or a refresh? I took a snippet from the notes:</p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Refresh Upgrades to Cisco Unified Communications Manager Release 10.5(2)SU2+</span></p>
<p class="MsoNormal"><a name="reference_DCA560D8832D0E6CC223D801AAFA5A"><span style="font-size:11.0pt">Currently, the <i>Upgrade Guide for Cisco Unified Communications Manager and IM and Presence Service</i> instructs administrators performing a refresh upgrade
of Cisco Unified Communications Manager nodes that they must both upgrade and switch versions on the publisher node before they begin to upgrade subscriber nodes.</span></a><span style="font-size:11.0pt"></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">As of Cisco Unified Communications Manager Release 10.5(2)SU2 and higher, administrators have the option of holding off switching versions until after all cluster nodes are upgraded. For this case, the revised
order would be:</span></p>
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<li class="MsoNormal" style="mso-list:l0 level1 lfo1;tab-stops:list .5in"><span style="font-size:11.0pt;mso-fareast-font-family:"Times New Roman"">Upgrade the Unified Communications Manager publisher node.</span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1;tab-stops:list .5in"><span style="font-size:11.0pt;mso-fareast-font-family:"Times New Roman"">Upgrade the Unified Communications Manager subscriber nodes.</span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1;tab-stops:list .5in"><span style="font-size:11.0pt;mso-fareast-font-family:"Times New Roman"">Switch the publisher node to the upgraded partition.</span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1;tab-stops:list .5in"><span style="font-size:11.0pt;mso-fareast-font-family:"Times New Roman"">Switch the subscriber nodes to the upgraded partition.</span></li></ol>
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<p class="MsoNormal"><span style="font-size:11.0pt">Note</span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">You can switch the subscriber nodes to the upgraded partition either all at once, or one at a time, depending on your site requirements.</span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">For Cisco Unified Communications Manager Release 10.5(2)SU2 and higher, administrators can apply this optional version switching sequence to the Refresh Upgrade task lists in the "Upgrades Overview" chapter
of the <i>Upgrade Guide for Cisco Unified Communications Manager and IM and Presence Service</i>.</span></p>
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<p>Thanks,</p>
<p>Mike<br>
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