I am happy to announce that our OpenNMS Plugin for Grafana (OPG) version 12 has been released!
Compatibility & What’s New
This version is compatible with Grafana 12 (12.4 as of this post) and should also work with Grafana 10 and 11. It works with Horizon 34 or newer as well as with Meridian 25 and the upcoming Meridian 26.
It also features various bug fixes, library, and security updates. These under-the-hood improvements help ensure OPG 12 remains stable, performant, and secure as your monitoring environment grows. Keeping dependencies current also means better compatibility with the broader Grafana ecosystem and reduces exposure to known vulnerabilities — an important consideration for teams running OpenNMS in production environments.
Upgrading Your Dashboards
Any dashboards you have built that work with Grafana 9 or greater should still work with OPG v12. You can use our Dashboard Converter tool to convert any dashboards from Grafana 8-11 to a Grafana 12 / OPG 12 compatible version. Dashboards built using Grafana 8 or the older OpenNMS HELM plugin will need to be converted with this tool.
The Dashboard Converter is designed to be straightforward — point it at your existing dashboard JSON, and it handles the migration automatically, preserving your panels, queries, and layout so you can pick up right where you left off without rebuilding from scratch.
Take a look at our previous blog post by OpenNMS engineer Saul Bernabe to see how you can use OpenNMS and Grafana together to visualize your network.
Special thanks to Saul Bernabe, Marshall Massengill, and Christian Pape for testing and suggestions!
Screenshots of OPG 12 in Action
1. Node Details

2. Alarm Details With Custom Alarm Table Panel

3. Outage Details

Ready to Get Started?
Whether you’re upgrading an existing OPG deployment or exploring OpenNMS and Grafana for the first time, our team is here to help. From installation and integration to custom dashboard design and ongoing support, OpenNMS’s professional services team can guide you every step of the way.
Have questions about OPG 12 or want to discuss your network monitoring setup? Contact the OpenNMS team today — we’d love to help you get the most out of your OpenNMS and Grafana environment.





