This article is from a FAQ concerning SCO operating systems. While some of the information may be applicable to any OS, or any Unix or Linux OS, it may be specific to SCO Xenix, Open There is lots of Linux, Mac OS X and general Unix info elsewhere on this site: Search this site is the best way to find anything.
There is information in the file ftp://stage.sco.com/README.OSR5.Supplements, including a list of currently applicable patches, and some quick summary information on which patches should not be used in conjunction with each other. For more detailed information, read the documentation files accompanying each specific patch.
There's also a Web page, https://www.sco.com/support/toolbox/patch.html, with a minimum patch list.
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