Drummer Andrew Carlston has left Chelsea Grin. The split appears to be amicable. Carlston offered a tweet to announce his departure:

No explanation from either side has been provided yet, but Lambgoat reports that Carlston recently had a daughter which could have something to do with his decision. The band's new EP Evolve is due out June 19 via Artery Recordings/Razor & Tie and they'll be on the Vans Warped Tour all summer long.