In January, Canonical released several kernel updates for Ubuntu 17.10 (Artful Aardvark) and other supported Ubuntu releases with software mitigations against the Spectre and Meltdown security vulnerabilities. These patches were first released for 64-bit (amd64) architectures, and then for 32-bit (i386), PPC64el, and s390x systems. Today, the company announced the availability of new kernel updates that address both the Meltdown and Spectre security vulnerabilities for the ARM64 (AArch64) hardware architecture, patching the Raspberry Pi 2 kernel for Ubuntu 17.10, as well as its derivatives.