Dupree will sign a two-year contract with the Chargers, Tom Pelissero of NFL Network reports.
Dupree finished 2023 with 39 tackles (17 solo), 6.5 sacks, three pass defenses and two forced fumbles in 16 appearances.
Dupree (back) is active for Sunday's game against the Colts.
Dupree (back) is considered questionable to play in Sunday's matchup with Indianapolis, Michael Rothstein of ESPN.com reports.
Dupree (back) is inactive for Sunday's contest versus Carolina.
Dupree registered seven tackles (three solo), including two sacks, during Sunday's 13-8 win over the Jets.
Dupree (groin) is active for Sunday's matchup with the Titans, Tori McElhaney of the Falcons' official site reports.
Dupree (groin) is listed as questionable for Sunday's game at the Titans, Amna Subhan of the Falcons' official site reports.
Dupree recorded four tackles (one solo) and 1.5 sacks during Sunday's 24-16 loss to the Commanders.
Dupree said Tuesday that he's 100 percent recovered from a torn pectoral muscle he suffered late in the 2022 campaign, D. Orlando Ledbetter of The Atlanta Journal-Constitution reports.