All Mac and iOS apps are built with Apple's toolset called Xcode, but central to Xcode is the language used to develop those apps called Objective-C. Objective-C has been Apple's programming language of choice for more than 20 years, but coding is still a repetitive and imperfect process. Apple wants to help developers in this regard with its own homegrown solution, designed with simplicity and stability in mind.

"We had to ask ourselves the question: What would it be like if we had Objective-C without the baggage of C?" said Apple SVP Craig Federighi during Monday's WWDC keynote.