Opnsense End of Life Dates

Developers looking for a reliable and secure firewall and routing solution often turn to open source software, and one such option is OPNsense, which has been developed by Deciso, a Netherlands-based company, since its inception. Created to provide a robust and customizable platform for network security, OPNsense is built on top of FreeBSD, offering a stable and efficient foundation for its features. With Deciso providing hardware and support packages, OPNsense has become a go-to choice for many developers seeking a flexible and scalable solution for their network infrastructure needs. The fact that OPNsense is open source has contributed to its popularity, as developers can modify and extend the software to fit their specific requirements.

The landscape of OPNsense versions is quite extensive, with a total of 23 versions having been released over time. However, the majority of these, 22 to be exact, have reached their end-of-life, leaving only one active version currently supported. The latest stable version, 26.1.9, is the recommended choice for new deployments and upgrades. Notably, the last version to reach its end-of-life was 25.7, which occurred on January 28, 2026. Given that there is no announced date for the next version to expire, developers can focus on leveraging the current stable version without immediate concerns about upcoming end-of-life milestones.

From a security perspective, OPNsense presents a clean slate, with no tracked CVEs, including zero critical vulnerabilities. This lack of known vulnerabilities means that there is no most affected version, as the software has not been found to have any significant security flaws. Furthermore, with no CVEs to consider, KEV status is not applicable in this context. As a result, developers can confidently deploy and use OPNsense without worrying about known security risks, allowing them to focus on the configuration and customization of the software to meet their specific network security needs.