Apple: New MacBooks will be built in the U.S.

SAN FRANCISCO (AP) — Apple announced new MacBooks and a new Mac operating system during a keynote presentation Monday at the company’s annual conference for software developers in San Francisco.

The new MacBook Pro promises faster connectivity through Thunderbolt 2 ports and better graphics performance. It will be assembled in the United States, consistent with Apple's previous pledge to move manufacturing of one of its existing lines of Mac computers to the U.S.

The 11-inch model will have nine hours of battery life instead of five, while the 13-inch model will have 12 hours, instead of seven.

The new MacBook Airs start shipping Monday: The 11-inch one starting at $999 and the 13-inch model starting at $1,099. The Airs are thinner and lighter than traditional laptops.