Meridian is supported for 3 years from the First Commercial Shipment (FCS) date of the major version release.
As an example, Meridian 2023.x was first released on February 15th, 2023 so the official end of support for Meridian 2023.x will be February 15th, 2026.
Release dates are available from this page: https://www.opennms.com/version-history/
If you need support for a particular Meridian release for longer than 3 years past First Commercial Shipment then get in touch about options for extended support.
