Apple released OS X v10.7.5 Supplemental Update, a maintenance release for Lion. The patch notes specify that the update addresses a Time Machine issue and an issue affecting signed apps.
Those patch notes:
- Resolves an issue that may cause Time Machine backups to take a very long time to complete
- Addresses an issue that prevents certain applications signed with a Developer ID from launching
The update is a 2.02MB download from Apple's support site.