Officially announced by Linus Torvalds on September 15th, the Linux 5.3 kernel series introduces numerous new features and enhancements, among which we can mention support for AMD Radeon Navi GPUs, support for Zhaoxin x86 processors, support for the utilization clamping mechanism in power-asymmetric CPUs, as well as Intel Speed Select support. It also adds support for the lightweight and flexible ACRN embedded hypervisor, support for 16 millions new IPv4 addresses in the 0.0.0.0/8 range, support for the umwait x86 instructions, a new pidfd_open(2) system call that enables handling of PID reuse issues in service managers, and numerous new and updated drivers for better hardware support.