About this release This document contains important information about the current release. We recommend that you read the whole document. McAfee® Web Gateway 18.104.22.168 is provided as a main release. It is an update that resolves issues present in previous releases. HSM firmware upgrade If you are using a Thales hardware component for running a Hardware Security Module (HSM) with Web Gateway, make sure that you are also using the appropriate firmware. The Web Gateway repository provides nfast-driver version 12.40 for running the Thales HSM component. If your monitor and module firmware does not support this driver version, you must obtain the required firmware version from Thales and perform a firmware upgrade before upgrading to a new Web Gateway version.