Intel has released production microcode updates for Kaby Lake- and Coffee Lake-based platforms. This represents our 6th, 7th and 8th Generation Intel Core product lines as well as our latest Intel Core X-series processor family. The new microcode will be made available in most cases through OEM firmware updates. Intel is mindful of the fact that, in some cases, there are multiple mitigation techniques available that may provide protection against these exploits. This includes Retpoline, a Google-developed mitigation technique for Variant 2.”]
Source: https://newsroom.intel.com/news/latest-intel-security-news-updated-firmware-available/