Can all Agent Client Collectors (ACC) be upgraded at the same time?SummaryACC installs cannot be upgraded all at the same time with the built-in selective upgrade feature. There is a deliberate limit of 20 upgrades at the same time. The feature is designed to be used in combination with your existing 3d party automation/provisioning tools and runbooks, which will still be doing most of the upgrades. The selective upgrade feature is designed to fill in the gaps/coverage, such as in cloud environments or DMZs, where those tools can't reach. Not having all ACCs immediately upgraded after upgrading the instance apps is not generally a problem, because ACC has some forwards compatibility, and ACCs a few versions behind the instance app version will still work, and still be able to run the new version checks and plugins/assets. If you select more than 20 ACCs from the list, the following error is to be expected:More than 20 agents had been selected. Please select fewer agents for upgrade and try again