Thinking of updating to the latest 5.4.2 build? Release notes can be found here: http://vmturbo.com/wp-content/uploads/docs/ReleaseNotes_5.4u2_EXTERNAL.pdf.
Additional documentation and release notes for the 5.3, 5.4, and 5.4.1 builds can be found here: http://vmturbo.com/resources/vmturbo-quick-start-guide/product-documentation/.
How to perform offline update: How To Perform an Operations Manager "Offline Update" - Latest Links Included
How to perform online update: How to Perform a VMTurbo "Online Update"