- update to 2.10.4
* Bugfixes:
- Fix TLS connections in Influxdb/Elasticsearch features leaking file descriptors (#6989 #7018 ref/IP/12219)
- Fixes for delayed and one-time notifications (#5561 #6757)
- Improve performance for downtimes/comments added in HA clusters (#6885 ref/IP/9235)
- check_perfmon supports non-localized performance counter names (#5546 #6418)
Detail see: https://github.com/Icinga/icinga2/blob/master/CHANGELOG.md#2104-2019-03-19