Nagios XI update 5.6.6 is now released! This update resolves a number of minor bugs and one security vulnerability fix. This version also includes improvements to the Managed Service Provider (MSP) status pages for users with MSP licensing. Additionally, a new report focused on MSP host/service usage is now available! This report along with the billing information can now be found in a new section at the bottom left-hand side of the Admin menu.
For a full list of improvements, check out our Nagios XI Change Log