12:41pm: Timberwolves owner Glen Taylor, who will be replaced as Chairman of the Board of Governors by Spurs owner Peter Holt, confirmed at a press conference that Stern will be retiring in February of 2014.
12:29pm: David Stern will step down as NBA commissioner on February 1st, 2014, reports Adrian Wojnarowski of Yahoo! Sports (via Twitter). Stern will be replaced by current deputy commissioner Adam Silver, who was approved unanimously by the NBA's Board of Governors, according to ESPN.com's Marc Stein (Twitter link).
Ken Berger of CBS Sports first reported that the timeline for Stern's retirement was discussed extensively at this week's Board of Governors meetings. As Stein notes, Stern has been in his current role since February 1st, 1984, meaning his tenure as NBA commissioner will last exactly 30 years.