EndNote X9.33 (the latest upgrade) is available now as an optional upgrade in the ‘Software Center’. Student workroom machines will be upgraded after the end of Semester 2.
X9.33 changes the format of your library. It will create a converted copy (annoyingly called, for example, “My EndNote Library-Converted.enl”) while leaving the original library in place. The converted library is not backwards compatible, even to X9.1. If you work with the libraries of other staff and students, you might not want to install this version yet.
On the other hand, anybody who has upgraded their personal computer to X9.33 will not be able to use their library on a UC machine, until that too has been upgraded.
Online sync can be used to maintain the same library on both X9.33 and older versions.