Apple's Ai-powered Siri Assistant Hit By Big Delay

The effort will give Siri "more awareness of your personal context, as well as the ability to take action for you within and across your apps", the iPhone maker said in a statement. "It's going to take us longer than we thought to deliver on these features."

The new capabilities were first touted last June at the company's Worldwide Developers Conference. At the time, the company was aiming for a May debut, a postponement from earlier plans, people familiar with the situation said.

The new capabilities include Personal Context, a feature that lets Siri tap into user data to help with queries, and App Intents, a mechanism for more precisely controlling applications and features across Apple's operating systems.