Ailing chief executive Steve Jobs will return from sick leave to unveil Apple\'s latest generation of software next week, the firm announced Tuesday. The 56-year-old cancer survivor will present Apple\'s new operating system, dubbed \"Lion,\" at a developers conference in San Francisco on June 6. Jobs went on leave in January, his third medical absence since 2004, but has retained his title of chief executive at Apple. He underwent an operation for pancreatic cancer in 2004 and received a liver transplant in 2009, but Apple has not released any details about his latest health issues. \"Lion\" will be the eighth major iteration of Apple\'s operating system, \"Mac OS.\"