2026 April-May Community Bulletin

[Sara]

Hello Community!

April and May were full of updates and exciting developments at Checkmk. Let’s review some of them!

Checkmk 2.5 Release

Checkmk 2.5 is released!
If you have not yet, it is time to update! And the 2.5 is worth it with various improvements:

Checkmk 2.5 is out!

Hello Community, Checkmk 2.5 is officially released. Thank you to everyone who joined the community calls, tested the beta, reported bugs, and shared feedback along the way. A short overview of what’s new: A more intuitive UI — global search across Setup and Monitoring, clearer error messages, and guided workflows for longer operations like baking agents or adding hosts Rebuilt dashboards — responsive layouts in the commercial editions, a widget preview before saving, and shareable links for…

New Community Project by a Team Member: Checkmk OrbVis!

Our colleague started a community project, endorsed by Checkmk, to come up with an alternative to the NagVis in Checkmk. Check it out and share your feedback!

OrbVis — a NagVis successor candidate (developer preview, feedback welcome)

Hi everyone, we’d like to introduce OrbVis, a fresh take on monitoring visualization for Checkmk. OrbVis is a candidate for replacing NagVis in the Checkmk world, endorsed by Checkmk — but to be clear up front: this is a developer hobby project. No official support, no SLA, no release timeline. The code is open and we want you to try it. See it live, no install needed A read-only guest is parked on https://play.checkmk.com with a few example boards. Just click around — no credentials required…

Product Usage Analytics

Product usage analytics is shipped starting from 2.5.0b3, 2.4.0p26, 2.3.0p47 and disabled by default in our self-hosted solution – you can enable it to help us better understand how you use Checkmk, so we could make your experience better:

Product usage analytics coming to Checkmk 2.3, 2.4, and 2.5

As promised, here is the werk: https://checkmk.com/werk/19605 Product usage analytics is shipped starting from 2.5.0b3, 2.4.0p26, 2.3.0p47 and disabled by default in our self-hosted solutions. Here is the user guide article with further details: Product usage analytics Also, have a look at the product usage analytics manifest

Community Meta

AI in Checkmk Forum

We discussed the issue of using AI for posting in the Forum. Please let us know your thoughts before I add the decided points to the Code of Conduct in the Forum. Thank you!

Discussion: AI and Checkmk Forum

Hello Community! This topic has been raised a couple of days ago by @Jay2k1 in this thread. I believe it is important that we discuss and come up with a solution on how to treat AI generated content together – so the solution is not universally perfect but works for our community. With a bit of research and thinking about it, I came up with the following list of assumptions: There are several ways in which AI could be used and we need to distinguish those: Fully AI (Copy-paste) Translated…

Spam Attack and stricter posting policy

In April, we had a strong spam attack on the forum, which led me to make the rules of posting stricter – now some posts need to be reviewed before they appear in the forum. I appreciate your understanding:

Spam Wave in the Forum on 14th of April

Hello Community! As some of you noticed, we had a spam wave affecting the forum and its availability. As of now, it has been resolved. For the time being there are some stricter rules about posting in the Forum and some posts could have been affected. If you see something not working as it should or if your post was deleted by mistake, please let me know in direct messages or contact me via community@checkmk.com. Thank you for your understanding, Sara.

Checkmk Events

Cloud Livestream

We had a special livestream on the updates in Checkmk Cloud!
The recording was temporarily removed due to technical issues, but will be returned after the Conference is over, so stay tuned!

Checkmk Cloud Update and Livestream

Hello Community! With the launch of Checkmk version 2.5, our SaaS platform – Checkmk Cloud – has received some significant improvements! Here is what we have introduced. Of course, first and foremost, since Checkmk Cloud is our SaaS edition, it takes away the need of hosting and maintaining your Checkmk instance off your shoulders. But now Checkmk Cloud also has a set of very special features: Relay is a lightweight, secure instance that shares the data collected from your rem…

Knowledge Team Community Call

We had the chance to learn more about the knowledge team – our colleagues that make sure that Checkmk documentation is up to date and written in user-friendly language.
Thank you team for doing this!

Checkmk Knowledge Team Community Call

Hello Community! When you started with Checkmk, our User Guide was probably one of the first places you landed — and many of you keep coming back to it. But have you ever wondered who’s putting it all together? It’s time to meet our Knowledge Team! Join us for a Community Call with the people who write and maintain Checkmk documentation. They will introduce themselves, share how they work, and answer your questions about documentation. Got something you have been wondering about…

Leipzig Checkmk Meetup

We had a great first meetup of the Checkmk Community in Leipzig. I was very happy to meet all of you there and see that there is always something interesting to discuss among the Checkmk users!
(we are already discussing the topics for the next meetup )

Checkmk Leipzig User Group Meetup

Hello Community! During the Chemnitzer Linux Tage we realised that we have quite a few Checkmk users in the Leipzig area and decided to meet up! So, we are happy to announce the first meet-up of the Checkmk Leipzig User Group kindly hosted by Unite Services! You will be able to meet other Checkmk users, network and listen to the presentation by @mschlenker on how to best use application monitoring in Checkmk 2.5. We are also looking forward to a second speaker, so let us know, if it could be…

Checkmk Conference 12

We are thrilled to meet you all offline and online tomorrow!
Check out the agenda, and see you there!

The Checkmk Conference #12 Agenda

Checkmk Research – Currently running surveys

New Werks page design

We are gathering feedback on the Werk page redesign. If you use it and ready to share your opinion on this, please contact my colleague Malte!

Feedback wanted: new Werks page design

Hello Community! We know updates matter to you, and Werks are a big part of that. We want to make the Werks page on our website better – and we need your help. If you actively use the Werks page, we’d love to hear your feedback on a new design we’re working on. Can you spare 30 minutes for a quick call to share your thoughts? If so, please email Malte at malte.verhoeff@checkmk.com. Thanks, and we’re looking forward to hearing from you!

Releases

For 2.3: [Release] Checkmk stable release 2.3.0p46, [Release] Checkmk stable release 2.3.0p47, [Release] Checkmk stable release 2.3.0p48
For 2.4: [Release] Checkmk stable release 2.4.0p25, [Release] Checkmk stable release 2.4.0p26, [Release] Checkmk stable release 2.4.0p27, [Release] Checkmk stable release 2.4.0p28, [Release] Checkmk stable release 2.4.0p29, [Release] Checkmk stable release 2.4.0p30, [Release] Checkmk stable release 2.4.0p31
For 2.5: [Release] Checkmk stable release 2.5.0p1, [Release] Checkmk stable release 2.5.0p2, [Release] Checkmk stable release 2.5.0p3, [Release] Checkmk stable release 2.5.0p4
Appliance: Checkmk Appliance firmware 1.7.17 released, Checkmk Appliance firmware 1.7.18 released, Checkmk Appliance firmware 1.7.19 released, Checkmk Appliance firmware 1.7.20 released, Checkmk Appliance firmware 1.7.21 released

Top New Product Ideas in April and May

check-httpv2: Certificate validity by age (ignore validation against RootCA)
High-availability: cross-datacenter and always-on
Windows Tasks Plugin: Folder based Monitoring Configuration
Haproxy: session-related metrics
check_httpv2: Display the checked URL directly instead of hiding it behind an icon
Dynamic config: DCD and RRD file cleanup able to handle a load with high turnover of objects
mk-oracle: Filter which CDB/PDB to monitor
Redfish-Plugin: Missing parameter for PredictedMediaLifeLeftPercent for SSDs
Rule Condition: Allow rule conditions to target a specific check (e.g., check_mk_active-httpv2)
Edit ID of BI Rules/Packages
mk-oracle: add simple Time‑Window Control for Custom Query Execution in Checkmk
check_cert: add the option “VirtualHost” to the certificate check

Check out other new ideas in the portal and vote for what you think is important!

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See you at the Conference!

Sara