On Monday, October 26th, Jamf will had A few IP Addresses to the pool of Outbound Jamf Cloud IPs. 

If you limited access to your network (for example by using JIM), make sure you update your firewall with the new list, available here:

https://www.jamf.com/jamf-nation/articles/409/permitting-inbound-outbound-traffic-with-jamf-cloud