Tech giant Apple has appointed Sabih Khan as its new Chief Operating Officer (COO), marking a significant leadership transition as long-serving executive Jeff Williams prepares to step down later this month.

Apple just made a major leadership move—naming Sabih Khan, a long-time insider of Indian origin, as its new Chief Operating Officer (COO). He takes over from Jeff Williams, who’s retiring after nearly three decades at the company.

Here’s the outgoing Apple COO and defacto head of design recounting the time that Steve Jobs willed a scratch-resistant display into existence after the original iPhone was announced with a plastic screen.

Sahib Khan, a long-time Apple veteran, will take over for COO Jeff Williams who announced his coming retirement next month. Khan has served under Williams for six years, managing the tech giant’s supply chain and logistics.