Keep up-to-date with the latest release notes from Paessler PRTG OPC UA Server, a PRTG product extension.

For more information, see the Paessler PRTG OPC UA Server Quick Start Guide.

July 22, 2026 - PRTG OPC UA Server 2.0.0

Features

  • Support the new sensor, device, group, and object JSON format in APIv2 of PRTG v122
  • Enable filtering of objects by their ancestor and descendant relationships
  • Enable exporting tagged objects and their descendants in a single request
  • Improve logging for better traceability of requests


Fixes

  • Refine wording in documentation
  • Update dependencies for improved compatibility and security

Other

  • Keep the existing config.yaml when updating with the MSI installer
  • Update installer with new logo and screenshots
  • Update third party licenses

Known Issues

  • PRTG OPC UA Server generates a high number of error messages in prtg-opcua-server_rCURRENT.log. This can make. This can affect performance and log analysis. We are investigating this issue.
  • In OPC UA client applications such as UAExpert, subfolders do not appear in the same order as in PRTG.
  • As of this version, PRTG OPC UA Server 2.0.0 requires PRTG 26.3.122 or later. For more information, see PRTG compatibility notice for PRTG OPC UA Server 2.0.0.

March 5, 2026 - PRTG OPC UA Server 1.3.0

Features

  • Require the OPC UA server to always start and provide information about its status
  • Allow templates to be added to the configuration for OPC UA BrowseNames, DisplayNames and NodeIDs
  • Make the NodeID persistent for condition nodes
  • Enable the OPC UA server to export all children of tagged nodes
  • Enable client authentication via certificates


Fixes

  • Fix service configuration to avoid endless service restarts
  • Refine wording in documentation


Other

  • Remove the configuration option unique_browsenames
  • Provide installer in MSI format

2023-12-05 - PRTG OPC UA Server 1.2.1

Fixes

  • Fixed a bug where file logging was disabled
  • Provide PRTG display values instead of raw values for all sensors

2023-10-26 - PRTG OPC UA Server 1.2.0

Features

  • Create a .csv file with node information for all exported PRTG objects
  • The global sensor state summary shows an aggregated view of all tagged sensors instead of the complete PRTG instance
  • Provide a sensor state summary for each provided tag
  • Provide a list of sensors in the DOWN, DOWN_ACKNOWLEDGED, DOWN_PARTIAL and WARNING state for sensor state summaries
  • Use OpenSSL 3 for OPC UA encryption


Fixes

  • Nodes on the OPC UA server are read only now
  • Further prevent creation of multiple OPC UA nodes to mitigate error messages in the log file

2023-08-24 - PRTG OPC UA Server 1.1.0

Features

  • Replicate PRTG tree in OPC UA namespace
  • Support loading OPC UA server certificates from Windows Certificate Store
  • Move sensor channels to an OPC UA subfolder
  • Show license information on the OPC UA server under VendorServerInfo
  • Allow UTF-8 with BOM and UTF-16 encoding for configuration files
  • Add option to make BrowseNames in the OPC UA namespace unique
  • Support TLS 1.3 for PRTG Application Server to PRTG OPC UA Server connection
  • Add Paessler PRTG OPC UA Server Quick Start Guide as installation option
  • Add icons for setup and Paessler PRTG OPC UA Server


Fixes

  • Prevent creation of multiple OPC UA nodes to mitigate error messages in the log file
  • Apply missing spaces on OPC UA display values
  • Use local activation file if the activation endpoint returns an internal error
  • Limit number of retries to start Windows service to three
  • Set retry interval of failed Windows service to 5 minutes
  • Improve error message on connection timeout
  • Update OpenSSL to version 1.1.1-q.1
  • Provide additional information after installation
  • Fix grammar and typos in documentation
  • Update third party licenses