Announced by Linus Torvalds on May 6th, the Linux 5.1 kernel series brings numerous new features and improvements, among which we can mention better file system monitorization, new cpuidle governor called TEO, support for configuring Zstd compression levels in Btrfs, and the ability to boot to a device-mapper device without using initramfs. Now, just one week later, the Linux kernel 5.1.1 was released by Greg Kroah-Hartman, who will maintain the Linux 5.1 kernel series until its end of life, thus marking it as stable on the kernel.org website instead of mainline, which is still considered a development version. This means that all GNU/Linux distributions can now adopt the latest Linux kernel 5.1.