Peter Lewis of Stairways Software has released Keyboard Maestro 6.4.1, updating the essential automation utility with a number of bug fixes — there are no feature changes. The update fixes potential crashes when undoing Execute AppleScript actions, creating custom icons, and processing text tokens; prevents time triggers from executing twice due to timer drift; addresses a bug that could partially cancel actions that followed an Exit From Loop; and more. ($36 new with a 20 percent discount for TidBITS members, free update, 24.4 MB, release notes)
Smarter Parental Controls
If you've been using the parental controls options in Mac OS X to lock your child out of using a particular computer late at night, but would like to employ a more clever technique to limit Internet access, turn to MAC address filtering on an Apple base station.
To do this, launch AirPort Utility, select your base station, and click Manual Setup. In the Access Control view, choose Time Access to turn on MAC filtering. You'll need to enter the MAC address of the particular computer, which (in 10.5 Leopard and 10.6 Snow Leopard) you can find in the Network System Preferences pane: click AirPort in the adapter list, and click Advanced. The AirPort ID is the MAC address.