This kernel update is based on the upstream 4.14.18 and and adds some support for mitigating Spectre, variant 1 (CVE-2017-5753) and as it is built with the retpoline-aware gcc-5.5.0-1.mga6, it now provides full retpoline mitigation for Spectre, variant 2 (CVE-2017-5715).
WireGuard has been updated to 0.0.20180202
This update also fixes the rtl8812au driver that got broken/missing in the upgrade to 4.14 series kernels (mga#22524).
For other fixes in this update, read the referenced changelogs.