A few days ago Symantec released Enterprise Vault 10.0.4 Cumulative Hotfix (CHF) 3. This is the most up to date incarnation of Enterprise Vault 10.0.4. It is a sizeable download of 216 Mb, and in some ways is very similar to a service pack itself. There are even installation instructions.
At first glance the readme file says it fixes 12 issues, but in reality it is probably a lot more than that when you look down the list of Etracks which are in the technote.
One of the main updates of interest is:
Description : Support for Exchange 2013 CU3
The full notes and the download are available here:
Will you be upgrading to Enterprise Vault 10.0.4 CHF 3?