[Release] Checkmk beta release 2.0.0b4

Dear friends of Checkmk,

the new beta release 2.0.0b4 of Checkmk is ready for download.

We are excited to continue the beta phase of Checkmk 2.0 with Checkmk 2.0.0b4.

With Version 2.0 among many new features, we will be introducing a new user
interface and user experience. While most features are already included in the
beta release, we are still tuning several aspects, especially of the UX.

We are very interested in your feedback on the new UX and would therefore
appreciate it if you would take some time (~15 min) to give us your feedback:

Please send general feedback, feedback on the new user experience, and bug
reports to this dedicated mail address:

feedback-2.0 at checkmk.com

All mails to this address will be used to improve the 2.0 and are completely
free of charge.

This test release ships with 36 changes affecing all editions of Checkmk, 4
Enterprise Edition specific changes and 0 Managed Services Edition specific

This release will be in active maintenance until 2021-02-14. The passive
maintenance will be until 2021-03-16. For details take a look at the Checkmk
versions chapter of the Checkmk handbook.

Changes in all Checkmk Editions:

Checks & agents:

  • 11385 mk_oracle_crs: Added support for Solaris
  • 11910 FIX: Add warn/crit metrics for percentage usage of filesystems
  • 11716 FIX: Logwatch: Clear log for individual files
  • 11715 FIX: Logwatch: Crash when using “” in regular expression (e.g. windows paths)
  • 11781 FIX: Shorten Check_MK service summary
  • 11885 FIX: Stale services of management boards in CRE
  • 11740 FIX: ceph_status_mgrs: fix crash on KeyError(epoch)
  • 11739 FIX: ceph_status_osds: Ceph version 15.2.5 fix crash on KeyError(osdmap)
  • 11869 FIX: check_ldap: Fix broken “Version 3 and TLS” SSL version
  • 11524 FIX: check_mail: Fix cleanup of messages (‘Namespace’ object has no attribute ‘cleanup_messages’)
  • 11741 FIX: fileinfo.groups: group pattern not found for enforced services
  • 11783 FIX: hr_mem crashes on HP and Arris SNMP data
  • 11882 FIX: mk_logwatch: Output limitation counted characters instead of bytes
  • 11742 FIX: mssql_instance: add MSSQL 2019 to known instances
  • 11880 FIX: ups_capacity: Bring back UPS ‘capacity’ metric
  • 11782 FIX: ups_out_load check and discovery crash on empty values for load and voltage

Core & setup:

  • 10293 REST API: allow effective host attributes to be queries
  • 11937 REST API: support users authenticated via site Apache
  • 11900 FIX: Avoid duplicate display for extension packages
  • 11871 FIX: Docker container: Add git client to support setup git integration
  • 10294 FIX: REST API: fix update/remove attributes in update host endpoint
  • 10295 FIX: REST API: host and service filtering now usable without table prefixes


  • 11832 FIX: SIGNL4, iLert: Process response codes correctly
  • 11384 FIX: ilert: Fixed exception while sending messages
  • 11913 FIX: Fix usage of host custom attribute in service notification bulking


  • 11397 FIX: Fix Service discovery when service checkoutput has values of -inf
  • 11861 FIX: Fix broken host search
  • 11865 FIX: Fix errors after moving hosts on folder page
  • 11862 FIX: Fix label completion
  • 11864 FIX: Fix moving tag groups on tag groups page
  • 11927 FIX: Pattern Editor: Unable to analyze matching, because “service” parameter is missing
  • 11685 FIX: check_mk_agent.linux: moving sections exclude rule option to linux agent section

User interface:

  • 11912 FIX: Fix KeyError on editing roles of LDAP user
  • 11909 FIX: Fix hostname as required field in host search
  • 11908 FIX: Fix show more mode for dictionary valuespecs
  • 11867 FIX: Fix too many page and graph reloads when reopening inactive tabs

Changes in the Checkmk Enterprise Edition:


  • 11863 FIX: Fix upload of CA files to “Agent Updater” rule

User interface:

  • 11911 FIX: Fix missing context/search filters in report scheduler
  • 10612 FIX: Service graphs: Vertically align the timerange choices with the displayed graph
  • 11866 FIX: Views: Host/service context PDF links are now visible in Export menu

Changes in the Checkmk Managed Services Edition:

You can download Checkmk from our download page:

Please mail bug reports and qualified feedback to feedback@checkmk.com.
We greatly thank you for using Checkmk and wish you a successful monitoring,

Your Checkmk Team