“Apple this month is simultaneously putting the final touches on a pair critical operating system updates — one that will close out an era in Mac computing and a second that will signify fresh beginnings,” Slash Lane reports for AppleInsider.

“Expected to be released first is Mac OS X 10.4.11, which is likely to stand as the Tiger operating system’s final curtain call,” Lane reports.

“Meanwhile, Apple is also inching closer to unleashing its next-generation Mac OS X 10.5 Leopard operating system, due on the market by the end of October,” Lane reports.

Details about each build in the full article here.