You Can Now Install Linux Kernel 6.4 on Ubuntu, Here’s How
Linux kernel 6.4 was released last weekend by Linus Torvalds and it’s already available for installations for Ubuntu systems from Canonical’s official Ubuntu Mainline Kernel Archive for amd64 (x86_64), AArch64 (ARM64), ARMhf, PowerPC 64-bit Little Endian (ppc64el), and IBM System z (s390x) architectures.
I’ve only installed and tested Linux kernel 6.4 on Ubuntu 23.04 (Lunar Lobster) because I never recommend upgrading to a mainline kernel on Ubuntu LTS release and the Ubuntu 22.10 (Kinetic Kudu) release is about to reach end of life later this month.