diff --git a/CHANGELOG b/CHANGELOG
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+2018-03-17: initial release
+2018-05-29: added connection limit (fwConnTableLimit)
+2018-05-31: changed form checkpoint_connections to checkpoint_fw_connections
+            changed to checkpoint_fw_connections_default_levels to
+            factory_settings['checkpoint_fw_connections_defaults']
+2020-06-07: code cleanup
+            added wato
+            wadded warn/crit for connection rate
+2020-06-08: changed snmp-scan function
+            code cleanup
+2021-08-23: rewritten for CMK2.0