Due to a reporting error, the story "Apple unveils Swift, a new programming language for iOS, Mac," posted Monday, attributed a number of quotes to the wrong person.

The story has been changed on the wire and several paragraphs have been modified.

The first sentence of the second paragraph now reads:

"Swift is fast. It is modern. It is designed for safety and it enables a level of interactivity and development you've never seen before on the platform," said Craig Federighi, Apple senior vice president of software engineering, who introduced the language to the surprise of the audience at the company's Worldwide Developers Conference, being held this week in San Francisco.

All subsequent attributions to "Cook" in the story have been changed to "Federighi."

The first sentence of the third paragraph now reads:

Federighi explained that Swift was designed to eliminate entire categories of common programming errors

The second sentence of the fifth paragraph now reads:

The WWDC audience applauded thunderously upon Federighi's introduction to the language

The first sentence of the eighth paragraph now reads:

"Swift has all the power of Objective-C, but without the "baggage of C," Federighi told the audience.

The third sentence of the 10th paragraph now reads:

"Your Swift code can fit along side your Objective-C code and C code in the same application," Federighi said.