doc.FAQ.HowDoIInterpretOperatingSystemPatchLevels Use the following guidelines:Ensure that users have applied all, current operating system patches. Determine whether or not the DBMS requires a specific patch level. Ascertain whether patches are associated with issues presented by the user. Compare the user patch level to the OpenLink build server patch level. OpenLink 's build servers may require patch updates, if they are behind user patch levels. Users may need patch updates, if they are behind OpenLink 's patch level. Otherwise, discrepancies between the machines may contribute to compatibility and stability problems.