Per a statement released by the Boston Celtics, Jordan Mickey has been released. This was the next logistical move for the Celtics to make before signing Gordon Hayward.
By making the move prior to July 15, the Celtics save $1.47 million which helps them gain more room under the cap to make the Gordon contract possible. The Avery Bradley trade is already official (his Detroit press conference was last night).
I would imagine the Hayward contract and press conference would happen soon. There have been reports that the press conference would occur back in Boston and the team is currently still wrapping up their Las Vegas League playoffs.