Chrome OS 65 has been promoted to the stable channel and it’s currently rolling out to supported Chromebooks, containing various bug fixes and security updates, including KPTI (Kernel page-table isolation) mitigation against the Meltdown vulnerability for Intel-powered Chromebooks running on Linux kernel 3.14. On top of that, Chrome OS 64 brings the Retpoline mitigation against the second variant of the Spectre security vulnerability to all Chromebooks powered by Intel processors. The new Meltdown and Spectre patches are here to complement the previous ones that Google released last month with the Chrome 64 update.