Update 10.1.3 delivers enhancements that improve the reliability of Mac OS X applications, important security features and includes new and updated support for a variety of Digital Hub peripheral devices.

Excellent!

They keep making an already great product better!

There’s a couple of little gotchas about the update though:

1. If you’ve modified the directory permissions to allow sendmail to work properly, you’ll have to do that again
2. If you’ve modified the kernel paramters to switch the control and caps-lock keys, you’ll have to do that again