Notice 2024-81 forth updates on the corporate bond monthly yield curve, the corresponding spot segment rates for October 2024 used under § 417(e)(3)(D), the 24-month average segment rates applicable for November 2024, and the 30-year Treasury rates, as reflected by the application of § 430(h)(2)(C)(iv).  

Notice 2024-81 will be in IRB:  2024-49, dated December 2, 2024.