Digitimes reports that Apple is plan to update its MacBook Air line early next year, with a new 15-inch model appearing alongside refreshed 11.6-inch and 13.3-inch models. The update will reportedly take place during the first quarter of 2012.

Apple reportedly is set to launch its new MacBook Air series notebooks with panel sizes of 11.6-inch, 13.3-inch and 15-inch in the first quarter of 2012 and will directly compete against ultrabooks from PC brand vendors, according to sources from the upstream supply chain.

The sources noted that related upstream players have already started pilot production of the MacBook Air models and will add a 15-inch model into the product line to expand its reach in the ultra-thin notebook market.

The report notes that discounts on the current MacBook Air models should extend through the lead-up to the debut of the new models, continuing to drive Apple's already-strong sales of the ultra-thin notebook line.

Intel's Ivy Bridge platform, which is due for a spring launch in line with the reported MacBook Air revamp timeline, will bring a significant upgrade to the line's performance, particularly with regard to graphics improvements and new OpenCL support.

Source : Macrumors