About this release This document contains important information about the current release. We recommend that you read the whole document. Caution: We do not support the automatic upgrade of a pre-release software version. To upgrade to a production release of the software, you must first uninstall the existing version. Rating — Mandatory Mandatory Critical High Priority Recommended Required for all environments. Failure to apply Mandatory updates might result in a security breach. Mandatory patches and hotfixes resolve vulnerabilities that might affect product functionality and compromise security. You must apply these updates to maintain a viable and supported product. For more information, see KB51560.