Intel provided stable microcode for Skylake mitigating Spectre variant 2. Current status https://newsroom.intel.com/wp-content/uploads/sites/11/2018/02/microcode-update-guidance.pdf
When it comes to Meltdown: Does OpenBSD is going to release patches for 6.2? I don't see anything related to Meltdown in errata, but maybe it is too early. I understand other OSes received disclosed information about bug a few months earlier.
