Our ESXi 6.0 hosts are being upgraded to Build 7967664 and the physical microcode is being upgraded as protection against Meltdown/Spectre. All guests are at HW version 11.
Do either/both of these host upgrades require that the guests be fully shut down then started back up to be protected again Meltdown/Spectre? I thought I came across that at one point for at least the microcode, but I'm not able to get an answer on a quick Web search.
Thanks.