The Marvel Studios logo changes the "io " in the word Studios to the numbers "10" to celebrate the tenth anniversary of the Marvel Cinematic Universe.
There is a statement at the end of the closing credits: "Thanos will return."
The closing credits appear over a black background. The film title appears at the end, and crumbles to dust.
SPOILER: There is a scene at the end of the closing credits: Nick Fury and Maria Hill are erased, but Fury manages to contact Captain Marvel.
There is one after-credits scene and no mid-credit scenes, something which Marvel hasn't done since Iron Man 3 (2013).
When the Marvel logo appears, an SOS signal is heard, leading in from the mid-credits scene of Thor: Ragnarok (2017).