Linux is not a real-time operating system (RTOS), but an update to the Linux kernel has added real-time capabilities.The feature, called PREEMPT_RT, enables the Linux kernel to respond to certain requests within a set timeframe.This support built directly into the kernel eliminates the need for clunky or inelegant workarounds.After being in development for two decades, this feature is expected to be utilized in various projects and commercial offerings soon.