Tim Cook’s Final WWDC as Apple CEO Puts Siri and John Ternus in Focus

WWDC 2026 opened June 8, marking Tim Cook's final Worldwide Developers Conference as Apple CEO before John Ternus takes over on September 1. The timing gives this year's developer conference a bigger role than usual: It is both a software showcase and the clearest preview yet of the company Ternus will inherit. The main pressure point is Siri. Apple has spent years positioning its devices around privacy, integration, and control of the full hardware-software stack, but the AI assistant race has moved faster than Siri. For iPhone users, the question is no longer whether Siri can answer simple questions or set timers. It is whether Apple can turn Siri into a reliable, context-aware layer for getting things done across apps. That matters for developers, too. WWDC is where Apple lays out the tools, frameworks, and platform rules that shape the next year of iPhone, iPad, Mac, Apple Watch, Apple TV, and Vision Pro software. Apple said WWDC 2026 runs from June 8 through June 12, with sessions