*1 Before GRUENDER, BENTON, and STRAS, Circuit Judges.

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PER CURIAM.

After Todd Stands Alone violated the conditions of supervised release, the district court ^[1] sentenced him to 14 months in prison. On appeal, he challenges the length of the sentence.

*2 As Stands Alone acknowledges, his recent release from prison moots the appeal. See Owen v. United States , 930 F.3d 989, 990 (8th Cir. 2019) (holding that release will moot an appeal when the appellant “challenge[s] only his term of imprisonment”). No remedy is available to shorten a term of imprisonment that he has already served, and no one has identified any collateral consequences. See id. ; see also United States v. Dunlap , 719 F.3d 865, 866–68 (8th Cir. 2013) (per curiam) (dismissing an appeal as moot under similar circumstances) . We accordingly dismiss the appeal.

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[1] The Honorable Charles B. Kornmann, United States District Judge for the District of South Dakota.