Hot off the presses is Enterprise Vault 11 Cumulative Hotfix 2. Weighing at 185 Mb for the download it consists of a series of changes that have been made to Enterprise Vault 11 following from it's original release.
As with the first cumulative update it's essential to read through both the read me document, and, the installation instructions. If you don't then, like me, you might forget to run the database upgrade script that is required after the installation.
Have you installed the update yet?