|Title||Event Console messages without a service level can be matched against service level 0 now.|
|Check_MK Edition||Check_MK Raw Edition (CRE)|
|Level||1 - Trivial Change|
|Compatibility||Compatible - no manual interaction needed|
Various message sources, e.g. syslog messages or SNMP traps, do not carry a service level with them. If an event console rule specified a matching criterion including the service level value 0 (meaning "no service level specified"), the rule didn't fire for such messages. This behavior was confusing and inconsistent with the rule matching for notifications.
Messages not carrying a service level have an implicit service level 0 now, so EC rules can match for this case.