While we are past the Linux 4.16 merge window, more Spectre and Meltdown related improvements and changes are still being allowed into the kernel, similar to all the KPTI/Retpoline work that landed late in Linux 4.15. On Wednesday was another big batch of KPTI and Spectre work that has already been merged…

Source: Phoronix – Spectre & KPTI Get More Fixes In Linux 4.16, Offsets Some KVM Performance Losses