Yes, Von Miller signed a 1-year deal with the Dallas Cowboys on August 17, 2026 (from the Von Miller page).
He's joining his hometown team — Miller attended DeSoto High School in Texas before Texas A&M. At 37, he'll slot into a pass-rush rotation alongside Rashan Gary, Donovan Ezeiruaku, and rookie Malachi Lawrence. He's coming off a strong 2025 where he had 9 sacks (his most since 2021) with Washington.