ZyLAB investigated the technical details of the 2 security issues. The Meltdown only affects Intel (and some ARM) CPUs and Spectre affects Intel, AMD and ARM.
If clients are running in Azure or AWS the underlying infrastructure is already patched. For on-premises installations a Windows Update is available. There are no changes required in our software as we do not offer an attack surface in the ZyLAB software. We will look at the performance impact on our search engine in the near future to determine the impact on our performance caused by the OS patches.