Iddings (shoulder) was waived/injured by the Panthers on Monday, Bryan Strickland of the Panthers' official site reports.
Iddings was one of a few injured defensive linemen on the Panthers' training-camp roster, so his release will clear a spot for a healthy one in Connor Wujciak, who was signed in a corresponding move.
Iddings signed a contract with the Saints on Monday, NOLA.com's Herbie Teope reports.
Iddings showed up to the Saints' rookie minicamp as a defensive end last weekend, but the release of OL Collin Buchanan prompted the Saints to experiment with Iddings on the offensive side of the ball. He evidently impressed enough natural talent to earn a contract as an offensive guard.