He left them in June, going by this
http://www.chemnitzerfc.de/cfc/aktuell/neuigkeiten/detailansicht/article//berkay-dabanli-verl.html?cHash=974f7c7bc258eabf9d30ebcac189ac0b
Berkay Dabanli leaves Chemnitzer FC
The Chemnitzer FC and Berkay Dabanli start from 01.07.17 separate ways. The defensive player has rejected the new, clearly improved, contract offer of the club.
Berkay Dabanli's contract at Chemnitzer FC will thus expire on June 30, 2017.
The Chemnitzer FC expressly thanks Berkay Dabanli for the achievements of the Himmelblauen and wishes him all the best for his sporting and personal future.