Mark XLIV - Avengers: Age Of Ultron
The Hulkbuster armor finally arrived in Avengers: Age of Ultron after years of anticipation since Tony Stark's cameo in the post-credits scene of The Incredible Hulk
Mark XLV - Avengers: Age Of Ultron
This model carries over all of the features from Mark XLIII and reinforces the whole armor with chromed gold titanium, making it considerably tougher and shinier.
Mark XLVI - Captain America: Civil War
The suit Tony Stark used to fight Captain America and Bucky Barnes is the first one to be inspired by the Bleeding Edge armor from the comics.
Mark XLVII - Spider-Man: Homecoming
The Mark XLVII armor that appears in Spider-Man: Homecoming is directly inspired by the Ultimate Marvel comics, with its middle portion sporting a silver color.
Mark L - Avengers: Infinity War
Tony Stark's fiftieth armor marked the penultimate step toward perfecting his greatest creation. Since it's based on nanotechnology.
Mark LXXXV - Avengers: Endgame
Tony Stark spent the five years after Thanos' snap polishing his ultimate suit, which resulted in the Mark LXXXV.