Intel is to release new microcode via Windows update for Spectre variants. further details can be found here:
https://support.microsoft.com/en-us/help/4465065/kb4465065-intel-microcode-updates:
Original release date: May 21, 2018
Systems Affected
CPU hardware implementations
Overview
On May 21, 2018, new variants—known as 3A and 4—of the side-channel central processing unit (CPU) hardware vulnerability were Link Removed. These variants can allow an attacker to obtain access to...