Just stumbled across this:
https://forums.symantec.com/syment/blog/article?blog.id=EV_team_blog&message.id=58#M58
Symantec Enterprise Vault 2007 Service Pack 3 (SP3)
Build Number: 7.5.3.2138
Documentation link – http://entsupport.symantec.com/docs/304302
Installation link – http://entsupport.symantec.com/docs/304217
Symantec Compliance Accelerator 2007 Service Pack 3 (SP3)
Build Number: 7.5.3.5169
Documentation link – http://entsupport.symantec.com/docs/304306
Installation link – http://entsupport.symantec.com/docs/304305
Symantec Discovery Accelerator 2007 Service Pack 3 (SP3)
Build Number: 7.5.3.5169
Documentation link – http://entsupport.symantec.com/docs/304308
Installation link – http://entsupport.symantec.com/docs/304309
Release Notes are here: http://seer.entsupport.symantec.com/docs/295045.htm
NSF migrator: NSF migrator is a wizard, which you can use to migrate the contents of Lotus Notes NSF files to Enterprise Vault.
Vault cache provides local access to archived items: The Enterprise Vault extensions for Lotus Notes can maintain a personal vault cache for users who have local replica-based mail.
Windows Desktop Search plug-in [Ref 753216]: This service pack introduces the following changes to the Windows Desktop Search plug-in that is included with the Enterprise Vault Outlook Add-Ins:
Improved support for RAR files [Ref 753099]: Enterprise Vault can now index and generate previews of the contents of RAR files. Previously, support for RAR files was limited to listing the names of the files in the RAR files.
Updated VCS Cluster Configuration wizard: This service pack comes with version 5.0 of the VCS Cluster Configuration wizard, which lets you set up the components required to run a VERITAS Cluster Server cluster. This is a Symantec-branded version of the wizard to which numerous bug fixes have been made.
FSA support on Windows Server 2008: With Enterprise Vault 2007 SP3, File System Archiving (FSA) can now archive files from Windows 2008 file servers.