Upgrading an HA Pair of Firepower 2110s in FTD mode ~~~~~~~~~ UPDATE!! ~~~~~~~~ As of FMC and FTD 7.0 this process is much more straightforward. Readiness Check is now enabled for an HA pair of firewalls. After pushing the update to the appliances, you can go into the upgrade screen and select both and do the "Check Readiness" button on both and wait for the results prior to doing the install. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ If you are like me you don't upgrade an FTD appliance often enough to remember the procedure. Today I installed the 6.3.0.1 update to an HA pair of FTD 6.3.0 2110s. This document assumes you have already updated the Firepower Management Center (FMC). Download Updates to the FMC From the FMC click on "System" then the "Updates" tab. If the update desired is not listed, click the "Download Updates" button. Push the update to the HA pair of devices Click the button on the far right marked "Push or Stag...