Prtg Network Monitor 21.0.x Patched Jun 2026

represents a significant milestone in the Paessler AG monitoring roadmap. This release cycle focused heavily on modernizing the user interface, improving security protocols, and introducing architecture changes to prepare the software for future updates (such as the transition to PRTG 23).

Whether you are upgrading from an older v20 installation or deploying it for the first time, version 21.0.x offers a robust environment for monitoring everything from basic uptime to complex cloud environments. What’s New in the 21.0.x Release Cycle? prtg network monitor 21.0.x