The 28th annual Apple developers' conference, WWDC, is to take place over the week of June 5-9, 2017, marking a major opportunity for the company to outline big updates to iPhone, iPad, Mac, Apple Watch and Apple TV apps and abilities. 

Though the week as a whole is directed towards those on the development side of Apple's growing ecosystem, WWDC's first day brings with it key announcements regarding upgrades to iOS, Mac OS, the Apple Watch system software and more.