“Apple Computer this week began asking its developers to test and report back to the company on the first external pre-release build of Mac OS X 10.4.3, a forthcoming maintenance release to the Mac OS X 10.4 Tiger operating system,” AppleInsider reports. “Like the previously released Mac OS X 10.4.2 Update, tipsters say that Mac OS X 10.4.3 continues to focus on improving the overall reliability and stability of the Tiger OS.”

AppleInsider reports that Mac OS X 10.4.3 is expected to be released sometime in September and provides more details on the update in the full article here.