Starting Monday is Apple's Worldwide Developer's Conference (WWDC) and while users should not expect a new iPhone or iPad, they will likely see the latest mobile operating system both devices will run.

According to USA Today, Apple is expected to continue its trend from the past few years and only unveil new software upgrades and not hardware. This means we will not see a new iPhone, iPad, MacBook, iMac or even rumored devices like the iWatch and Apple TV set.

The latest mobile operating system, iOS 8, is expected to be the headliner of the event and is the first major update since iOS 7. The last time Apple released an iOS makeover (iOS 7), it was arguably the most drastic update to their mobile operating system to date.

The newest installment will be far quieter, but it will still have its new details. For instance, Apple is widely expected to introduce HealthBook, an app that will come included in iOS 8 designed to keep record for other health apps. HealthBook was no doubt designed with the iWatch in mind, the Los Angeles Times reported.

As is customary, Apple will update its maps app, but it is still hard to imagine it will be able to compete with Google Maps.

One of the more interesting features of iOS 8 may be a music subscription thanks to the Beats Music purchase. The two companies only recently finalized the transaction, so do not expect to see such a service for a little while, but Tim Cook could well address what the purchase means for the future.

Apple is also expected to show off Mac OSX 10.10, its latest laptop and desktop operating system. Last year, iOS 7 got a massive cosmetic facelift and the Times reported the Mac and MacBook operating system could get its turn this year.

Rumors about the iPhone and iPad have been swirling for some time and those should only intensify once the general public sees iOS 8. Gene Munster, an analyst with Piper Jaffray, told USA Today customers will have a reason to be excited about Apple's impending line of product updates.

"This is a big year for Apple and hardware," he said. "But that's for the fall. WWDC is all about software."

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