[Release] Checkmk stable release 2.1.0p2

Dear friends of Checkmk,

the new stable release 2.1.0p2 of Checkmk is ready for download.

This maintenance release ships with 14 changes affecting all editions of Checkmk,
3 Enterprise Edition specific changes and 0 Managed Services Edition specific changes.

Maintenance periods can be found here: Checkmk versions

Changes in all Checkmk Editions:

Checks & agents:

  • 14035 FIX: Clustering fixed for legacy check plugins
  • 14347 FIX: Fix Zerto API Integration for non windows authentication method
  • 13988 FIX: fileinfo: Fix crash for user-configured state in case of missing file
  • 14314 FIX: management board: services are stale or not discovered
  • 14310 FIX: sap_hana_backup: cluster check crashes when node has no data
  • 14309 FIX: sap_hana_backup: backup duration shows negative timespan
    NOTE: Please refer to the migration notes!

Livestatus proxy:

  • 14157 FIX: liveproxyd: fixed needless heartbeat timeout


  • 14079 FIX: Agent registration: Fix required user permissions
  • 14254 FIX: REST API bi: changed 500 response to 404 for unknown rule
  • 14257 FIX: REST API: Docs not showing examples of host or service columns
  • 14255 FIX: host_config: created_at timestamp is no longer updated with the update host endpoint


  • 13903 SEC: Introduce additional CSRF checks
  • 14324 FIX: Fix validation of tag IDs

User interface:

  • 13920 FIX: UI: Increase width of scrollbars

Changes in the Checkmk Enterprise Edition:

Event console:

  • 13016 Refactor event bulk delete method

Reporting & availability:

  • 14323 FIX: Fix error on report scheduler creation

The Checkmk Micro Core:

  • 13909 FIX: Accomodate large agent output

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

1 Like

Same issue I have been reporting since BETA :

There is an “unremovable” double customers element in the CME edition.

Found an error editing the “Custom sidebar elements”.

If I create a “Custom sidebar element” everything still fits and I can filter on “Host Tags”.

If I then edit the same “Custom sidebar element” then the “Host Tags” filter is bugged and “Host in downtime” loses the setting.

I tested exactly this and had no error. Is it possible that your sidebar element has a second “Hosts” row further down the list?

I think I found a bug:


Downtime notifications are sent, even with disabled Notification of downtimes.
(Yes, the right host is selected at “explicit hosts” and downtime for the host and not a service is scheduled)

Will be fixed with werk #14331 in 2.1.0p3

1 Like

@paulr282 Do you have notification rules, that trigger, when a downtime is set?

I just found the problem. it was a wrong configuration on my part. The mentioned rule was below the default rule that sends the notifications. Thanks.