David Popa has left Blues after almost four years at the Club.BCFC
The 20-year-old's existing deal had been due to expire on 30 June 2018 and he is now a free agent.
The Romanian joined Blues' Academy back in 2014 as a 16-year-old and progressed through the Club’s Under-18 and Under-21 sides.
However, this season he has made just a solitary appearance off the substitute's bench for the Club's Development Squad team.
Everyone at Birmingham City FC wishes David well in his future career.