It's a collaboration with Mount Kimbie's Dom Maker.
The track debuted on Blake's BBC Radio 1 residency tonight and was later uploaded to YouTube. "Don't Miss It" is a collaboration with Dom Maker of Mount Kimbie fame, and it follows another collaboration, the 17-minute "Look Ma No Hands" made with André 3000 and released earlier this month. Before that, Blake appeared on the Black Panther soundtrack and also released his RA Recommended track "If The Car Beside You Moves Ahead" in January.
Listen to "Don't Miss It."