Stones Throw recently collaborated with Serato on new J Dilla release Donut Shop, featuring 3 unreleased Donuts-era beats, and 3 instrumentals that you might recognize from recent records by Mos Def + Q-Tip. You can grab the the whole thing as a free download by signing up for the Stones Throw newsletter:

In related news, check this piece on the legacy of J Dilla.