Eduardo has expressed his sadness at leaving Arsenal and thanked the club for nursing him back to health following his horror injury.
Croatia striker Eduardo completed a £6million move to Shakhtar Donetsk on Wednesday, ending his three-year stay with the Gunners.
Much of the 27-year-old's career at the Emirates was spent recovering from a horrendous broken leg and dislocated ankle suffered at Birmingham in February 2008.
Eduardo told his former club's official website: "The past few days have been very emotional for me.
"Although I am excited about the challenge ahead with my new club Shakhtar Donetsk, I am so sad to be leaving my home for the past three years - Arsenal Football Club.
"Arsenal is a very special football club and I will miss so many people - my team-mates, all the staff and, of course, the wonderful Arsenal supporters.
"When I first came to England, I could not speak the language and knew nobody, but as soon as I arrived I was made to feel at home and part of this big family.
"I had some very difficult times with my injury, but Arsenal was always there for me - the medical staff, the management, the players and the supporters. Thank you everybody.
"Although I have now left the club, Arsenal will always be in my heart. I will always look for the Arsenal results and of course, I wish Arsene Wenger and the great players at the club well for next season and the future."
Eduardo was sidelined for almost a year because of his injury, which was sustained following a controversial challenge by Martin Taylor.
There were concerns the psychological scars from the tackle had a negative impact on his game, which is thought to be one reason Arsenal boss Wenger allowed him to leave.
In total, Eduardo made 67 appearances and scored 20 goals in all competitions upon his arrival from Dinamo Zagreb.
