Apple released an update to its Xsan management software on Monday. Xsan 1.3 improves support for clients in a mixed Mac OS x 10.3.9 and 10.4 environment, fixes a problem with inaccurate file and folder permissions, maintains access to Xsan volumes when metadata controller fail-overs occur, and more. Detailed information about the update along with a stand alone installer is available on Appleis Web site. XSan 1.3 requires Mac OS X 10.4.5 or higher, and is priced at US$999. The update is free to registered users.