UPDATE: Reality TV star Bruce Jenner plans to sit down with ABC's Diane Sawyer to discuss rumors that the former Olympian is transitioning to life as a woman, People magazine reports.

Sawyer is "in the final stages of negotiating the interview" with Jenner, who reportedly is planning a docu-series about the gender transition, according to BuzzFeedPage Six says the interview will air in May.

This is an update to an earlier story. Read the previous version below.

Former Olympian and reality TV star Bruce Jenner is transitioning and will live as a woman, People magazine claims.

"He is finally happy and his family is accepting of what he's doing," an unnamed source reportedly told People. "He's in such a great space. That's why it's the perfect time to do something like this."

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Jenner, 65, also is planning a docu-series about the transition, People and TMZ reported.

"It will air when he is ready to be open about his transition," another source reportedly told People. "But he's acting more and more confident and seems very happy."

Jenner, who has not publicly confirmed the reports, divorced Kris Jenner, fellow star of the E! series "Keeping up With the Kardashians," last year.