Two longtime directors are departing Apple‘s board as the iPhone maker brings on some new blood in the form of aerospace industry leader Dr. Wanda Austin.

Al Gore, the former vice president and environmental activist, and James Bell, former CFO of Boeing, have retired from Apple’s board of directors after reaching the company’s age limit of 75 for directors.

Gore had served since 2003, acting as a high-profile ambassador for Apple’s environmental initiatives and green technology efforts. Bell had been on the board since 2015, lending his financial acumen.

“We’re deeply grateful to Al and James for their many years of service to Apple — their insights, energy, and values have made us a stronger company in so many ways,” said Apple CEO Tim Cook. “For more than 20 years, Al has contributed an incredible amount to our work — from his unconditional support for protecting our users’ privacy, to his incomparable knowledge of environment and climate issues. James’s dedication has been extraordinary, and we’re thankful for the important perspectives and deep expertise he’s offered on audit, finance, and so much more over the years.”

Replacing them will be Dr. Wanda Austin, former CEO and president of aerospace giant The Aerospace Corporation. Austin brings over three decades of experience in the technology industry.

“Wanda has spent decades advancing technology on behalf of humanity, and we’re thrilled to welcome her to Apple’s board of directors,” said Cook. “She’s an extraordinary leader, and her invaluable experience and expertise will support our mission of leaving the world better than we found it.”

The appointment of Austin hints at Apple’s growing interest in augmented reality, artificial intelligence and other emerging technologies, as it seeks to diversify beyond the iPhone. Her deep roots in the technology sector seem tailor-made to help Apple shape the future.

While the departure of icons like Gore marks the end of an era, the addition of trailblazing new directors like Austin likely signals exciting new beginnings ahead for Apple.