The K2 Five (5.1) November 2018 Cumulative Update Fix Packs contain fixes for issues reported in K2 Five (5.1) products. K2 recommends that you test these Fix Packs before you deploy to a production environment.
The Fix Packs are only compatible with K2 Five (5.1) products. Because Fix Packs are cumulative, each new Fix Pack contains the updates and fixes that were included with the previous Fix Pack releases. K2 Five (5.1) November 2018 Cumulative Update must be installed first after which the latest Fix Pack must be installed. To determine which cumulative update or fix pack has previously been installed in your environment see https://help.k2.com/kb000426.
To install the Fix Pack, run the Fix Pack installer on every machine in your environment where a K2 product or component is installed, including desktop machines that have K2 Studio or K2 Designer for Visual Studio installed. The same installer is used to update the specific K2 products and components that are installed on that machine.