David Christian appeals from the order of the District Court 1 granting summary-judgment to the defendants in his 42 U.S.C. § 1983 action. “[A] timely notice of appeal is mandatory and jurisdictional,” Dieser v. Cont’l Cas. Co., 440 F.3d 920, 923 (8th Cir. 2006), and appellant failed to file his notice of appeal within thirty days of the entry of judgment, see Fed. R.App. P. 4(a)(1)(A). Although appellant was incarcerated when he filed this action, he was released months before filing his notice of appeal, and he is therefore not entitled to the benefit of Rule 4(c)(1) of the Federal Rules of Appellate Procedure (prison mailbox rule). We dismiss the appeal as untimely and deny as moot the pending motion to supplement the record.