Phoenix Technology News on 11th June, the WWDC（Worldwide Developers Conference）was held in Moscone West conference centre in San Francisco.

MacBook Air configurations upgrade
Prices of MacBook Air

In WWDC, Apple had released new MacBook Air with the upgraded four generation Core Haswell platform as well as the longer lifespan battery. The battery life of the 11 inch MacBook Air has increased from 5 hours to 9 hours and the 13 inch one has prolonged from 7 to 12 hours. Phil said it affords continuously playing iTunes movies for 10 hours, almost a whole movie series of "The Lord of the Rings".
Meanwhile, MacBook Air has upgraded to 802.11ac wireless network, triple in its performance.
In terms of the prices, 128/256GB 11-inch MacBook Air are USD$999/1199 and 128/256GB 13-inch MacBook Air are USD$1099/1299.
In WWDC, the third party developers can directly contact with the Apple developers and get to know more about Apple products via keynote speech.