The 2.11.2 release addresses a problem unveiled with the cluster config sync and the new config-change-reload detection. Users who run HA zones (two masters, two satellites) are affected by this in large scale environments when the sync takes quite some time. The fix is implemented on the config receiver side preventing reload loops. All affected agents, satellites and masters need to be updated.

You can find additional hints in the upgrading docs. Packages are available on packages.icinga.com as always.