[Release] Checkmk stable release 2.1.0p40

Dear friends of Checkmk,

the new stable release 2.1.0p40 of Checkmk is ready for download.

This maintenance release ships with 12 changes affecting all editions of Checkmk,
2 Enterprise Edition specific changes and 0 Managed Services Edition specific changes.

Support periods can be found here: Checkmk versions

Changes in all Checkmk Editions:

Checks & agents:

  • 16504 nfsiostat: resolve error when displaying graphs…
  • 16361 SEC: Privilege escalation in Windows agent…
  • 16378 FIX: Checkmk Linux agent: ignore *.dpkg-tmp files in plugin folder…
  • 16171 FIX: aws: Fix Cloudwatch alarms fetching
  • 16506 FIX: aws: Inventorization of EC2 and ELB tags as host labels…
  • 16336 FIX: lnx_video: Fix section parsing
  • 16338 FIX: mk_redis: Fix for Werk #16329
  • 16333 FIX: if_lancom: Switch port discovery does not work for Lancom routers when the router description is configured to be used for the Service Description…
    NOTE: Please refer to the migration notes!


  • 15211 FIX: ActivateChanges: Improvements to what data is returned to the API user…


  • 16403 FIX: Fix assert self._rulespec.item_name is not None…

Site management:

  • 16401 FIX: omd start mkeventd: Error Code of Event Daemon

User interface:

  • 16049 FIX: Render service graphs of host independent of historic metrics…

Changes in the Checkmk Enterprise Edition:


  • 16365 FIX: baked_agents: Fix version displayed on agent files…

User interface:

  • 16452 FIX: Fix ‘AssertionError’ if ‘The last…’, ‘Date range’, ‘The next…’ or ‘Until’ is configured in forecast graphs

Changes in the Checkmk Managed Services Edition:


You can download Checkmk from our download page: Download Checkmk for free | Checkmk

List of all changes: Werks

We greatly thank you for using Checkmk and wish you a successful monitoring,

Your Checkmk Team

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