In May, we released updates to all OpenNMS Meridian versions under active support, as well as Horizon 29.

NOTE: All releases this month received security updates that affect a number of core dependencies. While these dependency changes should not affect how the OpenNMS runtime works, these releases contain a larger than usual number of changes to "plumbing" to facilitate these dependency updates. We strongly recommend that you do more than the usual amount of testing before deploying this update to a production environment.

Meridian Stable Updates

Meridians 2019.1.34, 2020.1.23, and 2021.1.15 contain primarily dependency updates primarily for security improvements.

Additionally, Meridian 2022.1.3 contains a bunch of documentation improvements and a few other bug fixes.

For a list of changes, see the release notes:

Horizon 29.0.10

Release 29.0.10 contains all of the fixes included in Meridian 2022.1.3, plus a few other bug fixes and enhancements.

For a high-level overview of what has changed in Horizon 29, see What’s New in OpenNMS Horizon 29.

For a complete list of changes, see the changelog.

The codename for Horizon 29.0.10 is Duck.