Released just a week or so ago is the new and shiney Enterprise Vault 9.0.5. If you can't upgrade to Enterprise Vault 10 yet, then it might be worth a look, if you have time to perform the upgrade that is.
As with all these sort of things it is worth checking the Late Breaking News. That's available on this link:
And the Release Notes are also another good place to start. They are available here:
And of course the full set of documentation is available too: