Derrick Grace seeks review of a final order dismissing his petition for writ of habeas corpus in which he challenged the calculation of his sentence by the Department of Corrections. We grant appellee’s motion to dismiss the proceeding as moot. Because official records indicate that Mr. Grace was released from prison during the pendency of this proceeding, the proceeding is moot. See Phillips v. McDonough, 962 So.2d 375 (Fla. 1st DCA 2007).