Desktop server and laptop server updates are on separate pages, as are updates to v5 of the multi-head server. You should periodically check to see if there is an general update for product you have. These updates are usually new support for new graphics cards.
Some updates are bug fixes.
Each update has an associated text file that describes the particular update and provides some helpful hints. We urge you get two - the text file and the bin file of choice. The size of each file in bytes is indicated. For updates to older disks, go to the ftp site and browse. The Index contains some instructions on our numbering scheme and some general installation instructions for the v5.0.3 multi-head updates.