What was the 2009 studio album by the Dio-era lineup under the Heaven & Hell name?

The Dio-era lineup’s 2009 studio album under the Heaven & Hell name was The Devil You Know.

The album reunited Ronnie James Dio, Tony Iommi, Geezer Butler, and Vinny Appice—the musicians associated with Black Sabbath’s Heaven and Hell, Mob Rules, and Dehumanizer periods. It was released on April 28, 2009, with an earlier Japanese import date of April 24.

The project grew out of the three new songs recorded for Black Sabbath: The Dio Years in 2007. Rather than return to the Black Sabbath name, the musicians continued as Heaven & Hell, a name taken from their first Dio-fronted Sabbath album. Mike Exeter handled engineering and additional production, while Dio, Iommi, and Butler shared production duties.

The Devil You Know was the band’s only Heaven & Hell studio album and Dio’s final studio album before his death in May 2010. Killing the Dragon and Magica are solo Dio albums, while Strange Highways is also associated with Dio’s solo career, not this lineup.