¶1 Michael Wayne Harkness, former Texas prisoner # 1235550, pleaded guilty to felo *842 ny driving while intoxicated and was sentenced to four years of imprisonment. Harkness now seeks a certifícate of appealability (COA) to appeal the district court’s denial of his 28 U.S.C. § 2254 petition challenging the denial of mandatory supervision.
¶2 During the pendency of this appeal, Harkness was released from prison to mandatory supervision. As a result, Harkness’s due process claim challenging the denial of § 2254 petition has been rendered moot. See Spencer v. Kemna, 523 U.S. 1, 7, 118 S.Ct. 978, 140 L.Ed.2d 43 (1998); Bailey v. Southerland, 821 F.2d 277, 278-79 (5th Cir.1987). Accordingly, this appeal is dismissed as moot.
¶3 APPEAL DISMISSED; COA MOTION DENIED.