Tim Cook delivers emotional final WWDC keynote as Apple CEO

Tim Cook closed his last Worldwide Developers Conference keynote as Apple ↗ 4.84% chief executive on Monday with a personal reflection on his 15-year tenure, telling developers gathered at Apple Park and watching remotely that "I truly believe the best is still ahead."npr+2

The outgoing CEO called his time leading Apple "the honor of a lifetime" and said events like WWDC had consistently reminded him that "imagination has no limits." Cook, who will transition to the role of executive chairman on September 1 when hardware engineering chief John Ternus assumes the CEO title, used his closing remarks to thank the developer community for helping people "experience the world in extraordinary new ways."appleinsider+1

A Farewell Amid Apple's Biggest AI Push

The emotional coda came at the end of a keynote dominated by Apple's most ambitious artificial intelligence announcements to date. After Cook's opening remarks, software chief Craig Federighi led the bulk of the technical presentations, unveiling iOS 27, macOS Golden Gate, and the overhauled assistant branded "Siri AI." The new Siri, powered in part by Google's Alphabet Inc. ↘ 0.48% Gemini models, will offer a standalone chatbot app, on-screen awareness, and multi-step task execution when it launches later this year in English.engadget+2

Apple also announced refinements to its Liquid Glass design language, new parental controls for child accounts, and performance improvements the company says will make apps launch up to 30 percent faster.engadget

Cook's Legacy in Numbers

Cook took over from Steve Jobs in August 2011, when Apple's market capitalization stood at roughly $350 billion. Under his watch, the company grew into a nearly $4 trillion enterprise, driven by the expansion of its services business, the Apple Watch, AirPods, and a steady cadence of iPhone upgrades. CNBC reported that Cook's tenure was "characterized by substantial value generation" for shareholders.sapientservices+1

Apple announced the leadership transition in April, naming Ternus — a 24-year company veteran who oversaw development of Apple Vision Pro, the M-series chips, and the iPhone's industrial design — as Cook's successor effective September 1, 2026. Cook received a standing ovation from the in-person audience before and after his remarks on Monday, underscoring the weight of the moment for a developer community that has known only two CEOs in Apple's modern era.cnbc+2