Apple has released Security Update 2007-05 which keeps it in the one-a-month category for the year.
According to the Apple notification it contains updates to the following components:
- bind
- CarbonCore
- CoreGraphics
- crontabs
- fetchmail
- file
- iChat
- mDNSResponder
- PPP
- ruby
- screen
- texinfo
- VPN
The update is for both Intel and PPC macs.