When you upgrade the kernel on your Linux device, you must make sure that the device is running a driver that supports it. When a Linux distribution releases a kernel update, Arctic Wolf creates an updated Linux driver package and makes it available from the management console. A driver update package is only available if there is a more up-to-date version than the one included in the agent release. 

Arctic Wolf recommends that you upgrade to agent version 3.1 or later, which enables a feature that allows the agent to automatically update the Linux driver after an updated kernel is detected, as soon as it becomes available. If you are running agent versions 3.0 or 2.1.1590, or you choose not to use the Auto-Update Linux Driver feature, you must manually install a supported driver for the Linux kernel. You can use tools and methods from your organization to deploy the compatible drivers to your devices.