Only listed processors here are updatable through the update available on the same page : https://support.microsoft.com/en-us/help/4090007/intel-microcode-updatesYou will need to update your CPU with a BIOS update if this update doesn't apply to you.
I wonder if we will ever receive a new BIOS for older Z97 motherboards... it seems not.Easy to tell that they just want to force the most of us to upgrade our rig even if it could be hard to maintain "EOL" systems. However this is a serious flaw that...