Apple is likely to unveil iOS 6 and updated MacBook laptops at its worldwide developer conference (WWDC).

The conference is due to kick off later today at the Moscone Center in San Francisco. Apple is expected to unveil new software in the form of iOS 6 and new hardware by the way of new MacBook laptops. See also: WWDC 2012 Preview: What to Expect from Apple.

Apple iOS 6

Apple revealed iOS 5 at last year's WWDC so will unveil iOS 6 at today's event. It will be the latest operating system of the iPhone, iPad and iPod touch. Last month we learned that iOS 6 will feature Apple 3D maps in favour of Google Maps. See also: iPhone 5 release date, specs and rumour round-up.

It's also thought that Apple's iOS 6 will bring Siri to the iPad. See also: New MacBook Pro release date, specs and rumour round-up 2012.

It's likely that Apple's entire PC hardware line-up will be refreshed today with one of the main changes being an upgrade in processor from Intel Sandy Bridge to Ivy Bridge – the third generation Core i processors.

The headline hardware update will be the MacBook Pro. Unconfirmed specifications courtesy of 9to5mac include a 2.6GHz Core i7 quad-core processor, 16GB of DDR3 RAM, a 2560 x 1600 Retina screen, Thunderbolt and a thickness of just 18.8mm.

Apple MacBook Pro 2012

Apple's latest desktop operating system, Max OS X Mountain Lion, could get its first public demonstration today and more details on when it will launch. You can catch the event as it happens here: Live: WWDC keynote