You can easily check if your have the latest version from within Nagios Network Analyzer by selecting the Check for Updates link located at the bottom left of the Nagios Network Analyzer interface.
The latest release for Nagios Network Analyzer can be found at the Nagios Network Analyzer Downloads page.
Instructions on how to upgrade your Nagios Network Analyzer installation can be found in the document below.
Please refer to the next section below (Migating from Network Analyzer 2024 to 2026), if you wish to migrate your data from 2024 to a new 2026 install.