Missing! Where are the CUCM 8.6 (and 8.5) Upgrade Guides???

[K L]

So what happened? Where are the Upgrade Guides for CUCM versions 8.6 and 8.5???

They are completely gone/missing! You end up going in circles and loop back and forth!

• Go to the CUCM "Install and Upgrade Guides"support page: https://www.cisco.com/c/en/us/support/unified-communications/unified-communications-manager-callmanager/products-installation-guides-list.html
• Go down to the version 8.6 section. There is no upgrade specific documentation, so select the "Installing Cisco Unified Communications Manager Release 8.6(1)" link: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/install/8_6_1/install/cmins861.html
• Below the table of contents (or search for "upgrade" in the page) it says "For information about upgrading from a previous release of Cisco Unified Communications Manager, and for other installation and upgrade information, see the "Related Documentation" section on page 2."
• In the related documentation section it directs you to the following link for "Upgrading Cisco Unified Communications Manager"(as well as other topics point to the same link): http://www.cisco.com/en/US/products/sw/voicesw/ps556/prod_installation_guides_list.html
• Look familiar? YUP! It sends you right back to the CUCM Install and Upgrade Guides support page. Even changes the URL back to: https://www.cisco.com/c/en/us/support/unified-communications/unified-communications-manager-callmanager/products-installation-guides-list.html

Funny......but not really when you're in need of the actual documentation.....

Anyone have any ideas???

[K L · Accepted solution]

Found it! It is in the release notes...

"Release Notes for Cisco Unified Communications Manager Release 8.6(2a)" documentation under "Upgrading to Unified CM 8.6(2a)" section: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/rel_notes/8_6_2/cucm-rel_notes-862a.html#pgfId-1944944