I may be the last Joni Mitchell and/or Steely Dan fan in the world to hear about it, but SD's cover of "Carey"--originally done ca. 2001 for a tribute album that Joni nixed--leaked this morning. I'd given up hope of ever hearing this. Go to 18:00. (It's also on YouTube in several versions. Until Donald Fagen's lawyers take them down, anyway.)
www.mixcloud.com
(Edit, later in the day: Rolling Stone & Stereogum now reporting on the leak. No other news beyond what's long been known about the track, though.)