After five years as a nightly news anchor, Diane Sawyer signed off of ABC’s World News for the last time on Wednesday night with a heartfelt farewell.

The 68-year-old is moving to a full-time role at ABC News (which she reminded viewers was “down the hall and up the stairs”), insisting that she is “not slowing down.”

20/20 anchor David Muir will fill in for Sawyer’s role beginning on Sept. 2.

“And now it is time to say goodnight,” Sawyer said. “I just want you to know what a deep privilege it has been to sit in the anchor chair at World News these years, the flagship broadcast of ABC, where Peter Jennings created a signature of such curiosity and courage.”

“It has been wonderful to be the home port for the brave and brilliant forces of ABC News around the world—and to feel, every single night, that you and I were in a conversation about the world together.”