Apple today released OS X 10.8.4, an update that (again) addresses some issues with Messages, among other small bugs. Apparently, an iMessage quirk was causing some messages to show up out of order on the app. Also included in the update is a new version of Safari (6.0.5), better support for Microsoft Exchange in the calendar, and a hiccup that was blocking international numbers on the FaceTime app.
You can see the full list of changes here. You can download it here or in the Mac App Store. Next, Apple is having its developers conference (WWDC), where we should see the next-generation version of OS X for the first time. [TNW]