Ernesto Valverde said a personal goodbye to Barcelona supporters with a message on the club's website on Tuesday.
Valverde was sacked on Monday night after two and a half years at the club.
"During this time I have had very happy times celebrating victories and titles, but also hard and difficult times," he said.
"Above all, I want to highlight the experience and the affection I felt from the fans during this period of my career."
Turning his attention to the playing staff he added: "Of course, I would also like to thank the players for all the hard work and effort that has allowed us to win four trophies together.
"From now on I wish you all the luck in the world, as well as to the new coach, Quique Setien."
✍️ A goodbye letter from Ernesto Valverde: ‘My time as manager of FC Barcelona has come to an end...’— FC Barcelona (@FCBarcelona) January 14, 2020
The 61-year-old replacement has a contract until 2022. He will be presented at the Camp Nou on Tuesday.
Valverde won two La Liga titles in his two and a half seasons but failed to reach a Champions League final. He departs with Barcelona on top of La Liga on goal difference.dpa